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Doug's Headers 1963-86 Chevy/GMC Big Block 1 3/4" Mid-Length Header D306

Doug's Headers 1963-86 Chevy/GMC Big Block 1 3/4" Mid-Length Header D306
Doug's Headers 1963-86 Chevy/GMC Big Block 1 3/4" Mid-Length Header D306Doug's Headers 1963-86 Chevy/GMC Big Block 1 3/4" Mid-Length Header D306
from $1,543.70 st

Available Options

*
Model: 5124702
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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Mid-Length Headers, often called Clipsters, are engineered to provide superior performance gains over Manifold Replacements or Block Hugger style headers. These headers enhance your vehicles's horsepower and torque while preserving ground clearance for cars with a lowered stance and trucks where long tube headers may hang to low. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.
Features:
  • 3/8" Thick machined flanges to prevent warping
  • CNC mandrel bent tubes for ensuring accurate fit and optimal flow
  • Heavy duty 16-gauge tubing for long life
  • Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating
About Doug's Headers

Doug's Headers are a fixture in the motorsports aftermarket, pioneering quality muscle car performance headers for decades. Unlike the competition, Doug's Headers prides ourselves on superior design detail resulting in a hassle-free installation for any application.

Downloads:

Download Name File Size
D306.pdf400.7KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Chevrolet Bel Air 1965 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 65-67 Bel Air Emission Vehicles in 50 States
Not Legal for use on 68-69 Bel Air Emission Vehicles in 50 States
Chevrolet Bel Air 1966 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Bel Air Emission Vehicles in 50 States
Not Legal for use on 68-69 Bel Air Emission Vehicles in 50 States
Legal for use on 65-67 Bel Air Emission Vehicles in 50 States
Chevrolet Bel Air 1967 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Bel Air Emission Vehicles in 50 States
Not Legal for use on 68-69 Bel Air Emission Vehicles in 50 States
Legal for use on 65-67 Bel Air Emission Vehicles in 50 States
Chevrolet Bel Air 1968 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Bel Air Emission Vehicles in 50 States
Not Legal for use on 68-69 Bel Air Emission Vehicles in 50 States
Legal for use on 65-67 Bel Air Emission Vehicles in 50 States
Chevrolet Bel Air 1969 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Bel Air Emission Vehicles in 50 States
Not Legal for use on 68-69 Bel Air Emission Vehicles in 50 States
Legal for use on 65-67 Bel Air Emission Vehicles in 50 States
Chevrolet Bel Air 1970 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Bel Air Emission Vehicles in 50 States
Not Legal for use on 70-72 Bel Air Emission Vehicles in 50 States
Chevrolet Bel Air 1971 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Bel Air Emission Vehicles in 50 States
Not Legal for use on 70-72 Bel Air Emission Vehicles in 50 States
Chevrolet Bel Air 1972 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Bel Air Emission Vehicles in 50 States
Not Legal for use on 70-72 Bel Air Emission Vehicles in 50 States
Chevrolet Bel Air 1973 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Bel Air Emission Vehicles in 50 States
Chevrolet Bel Air 1974 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Bel Air Emission Vehicles in 50 States
Chevrolet Biscayne 1963 7.0L / 427 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 63-67 Biscayne Emission Vehicles in 50 States
Not Legal for use on 68-69 Biscayne Emission Vehicles in 50 States
Chevrolet Biscayne 1965 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 65-67 Biscayne Emission Vehicles in 50 States
Not Legal for use on 68-69 Biscayne Emission Vehicles in 50 States
Chevrolet Biscayne 1966 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 63-67 Biscayne Emission Vehicles in 50 States
Not Legal for use on 68-69 Biscayne Emission Vehicles in 50 States
Legal for use on 65-67 Biscayne Emission Vehicles in 50 States
Chevrolet Biscayne 1967 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 63-67 Biscayne Emission Vehicles in 50 States
Not Legal for use on 68-69 Biscayne Emission Vehicles in 50 States
Legal for use on 65-67 Biscayne Emission Vehicles in 50 States
Chevrolet Biscayne 1968 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 63-67 Biscayne Emission Vehicles in 50 States
Not Legal for use on 68-69 Biscayne Emission Vehicles in 50 States
Legal for use on 65-67 Biscayne Emission Vehicles in 50 States
Chevrolet Biscayne 1969 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 63-67 Biscayne Emission Vehicles in 50 States
Not Legal for use on 68-69 Biscayne Emission Vehicles in 50 States
Legal for use on 65-67 Biscayne Emission Vehicles in 50 States
Chevrolet Biscayne 1970 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-72 Biscayne Emission Vehicles in 50 States
Chevrolet Biscayne 1971 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-72 Biscayne Emission Vehicles in 50 States
Chevrolet Biscayne 1972 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-72 Biscayne Emission Vehicles in 50 States
Chevrolet C10 Pickup 1968 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 C10 Emission Vehicles in 50 States
Chevrolet C10 Pickup 1969 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 C10 Emission Vehicles in 50 States
Chevrolet C10 Pickup 1970 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C10 Emission Vehicles in 50 States
Chevrolet C10 Pickup 1971 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C10 Emission Vehicles in 50 States
Chevrolet C10 Pickup 1972 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C10 Emission Vehicles in 50 States
Chevrolet C10 Pickup 1973 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 C10 Emission Vehicles in 50 States
Chevrolet C10 Pickup 1974 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 C10 Emission Vehicles in 50 States
Chevrolet C10 Suburban 1968 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1969 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1970 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1971 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1972 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1973 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-80 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1974 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-80 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1975 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-80 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1976 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-80 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1977 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-80 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1978 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-80 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1979 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-80 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1980 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-80 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 1975 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-80 C10 Emission Vehicles in 50 States
Chevrolet C10 1976 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-80 C10 Emission Vehicles in 50 States
Chevrolet C10 1977 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-80 C10 Emission Vehicles in 50 States
Chevrolet C10 1978 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-80 C10 Emission Vehicles in 50 States
Chevrolet C10 1979 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-80 C10 Emission Vehicles in 50 States
Chevrolet C10 1980 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-80 C10 Emission Vehicles in 50 States
Chevrolet C20 Pickup 1968 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 C20 pickup Emission Vehicles in 50 States
Chevrolet C20 Pickup 1969 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 C20 pickup Emission Vehicles in 50 States
Chevrolet C20 Pickup 1970 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C20 Pickup Emission Vehicles in 50 States
Chevrolet C20 Pickup 1971 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C20 Pickup Emission Vehicles in 50 States
Chevrolet C20 Pickup 1972 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C20 Pickup Emission Vehicles in 50 States
Chevrolet C20 Pickup 1973 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 C20 Pickup Emission Vehicles in 50 States
Chevrolet C20 Pickup 1974 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 C20 Pickup Emission Vehicles in 50 States
Chevrolet C20 Suburban 1968 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1969 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1970 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1971 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1972 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1973 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1974 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1975 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1976 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1977 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1978 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1979 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1980 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1981 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1982 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1983 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1984 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1985 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1986 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-86 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 1975 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1976 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1977 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1978 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1979 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1980 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1981 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1982 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1983 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1984 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1985 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet C20 1986 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-86 C20 Emission Vehicles in 50 States
Chevrolet Camaro 1967 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Will not fit 67-69 Camaro or 68-74 Nova with Factory Saginaw 800 power steering box
Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 Nova with rack steering
Mid Length
with Floor Shifter
Legal for use on 1967 Camaro Emission Vehicles in 50 States
Not Legal for use on 68-69 Camaro Emission Vehicles in 50 States
Chevrolet Camaro 1968 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Will not fit 67-69 Camaro or 68-74 Nova with Factory Saginaw 800 power steering box
Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 Nova with rack steering
Mid Length
with Floor Shifter
Legal for use on 1967 Camaro Emission Vehicles in 50 States
Not Legal for use on 68-69 Camaro Emission Vehicles in 50 States
Chevrolet Camaro 1969 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Will not fit 67-69 Camaro or 68-74 Nova with Factory Saginaw 800 power steering box
Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 Nova with rack steering
Mid Length
with Floor Shifter
Not Legal for use on 1969 Camaro Emission Vehicles in 50 States
Legal for use on 1967 Camaro Emission Vehicles in 50 States
Not Legal for use on 68-69 Camaro Emission Vehicles in 50 States
Chevrolet Camaro 1970 6.6L / 402 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-72 Camaro Emission Vehicles in 50 States
Chevrolet Camaro 1971 6.6L / 402 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-72 Camaro Emission Vehicles in 50 States
Chevrolet Camaro 1972 6.6L / 402 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-72 Camaro Emission Vehicles in 50 States
Chevrolet Caprice 1966 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Caprice Emission Vehicles in 50 States
Not Legal for use on 68-69 Caprice Emission Vehicles in 50 States
Chevrolet Caprice 1967 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Caprice Emission Vehicles in 50 States
Not Legal for use on 68-69 Caprice Emission Vehicles in 50 States
Chevrolet Caprice 1968 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Caprice Emission Vehicles in 50 States
Not Legal for use on 68-69 Caprice Emission Vehicles in 50 States
Chevrolet Caprice 1969 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Caprice Emission Vehicles in 50 States
Not Legal for use on 68-69 Caprice Emission Vehicles in 50 States
Chevrolet Caprice 1970 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Caprice Emission Vehicles in 50 States
Not Legal for use on 70-72 Caprice Emission Vehicles in 50 States
Chevrolet Caprice 1971 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Caprice Emission Vehicles in 50 States
Not Legal for use on 70-72 Caprice Emission Vehicles in 50 States
Chevrolet Caprice 1972 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Caprice Emission Vehicles in 50 States
Not Legal for use on 70-72 Caprice Emission Vehicles in 50 States
Chevrolet Caprice 1973 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Caprice Emission Vehicles in 50 States
Chevrolet Caprice 1974 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Caprice Emission Vehicles in 50 States
Chevrolet Chevelle 1968 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 68-69 Chevelle Emission Vehicles in 50 States
Chevrolet Chevelle 1969 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 68-69 Chevelle Emission Vehicles in 50 States
Chevrolet Chevelle 1970 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-73 Chevelle Emission Vehicles in 50 States
Not Legal for use on 70-72 Chevelle Emission Vehicles in 50 States
Chevrolet Chevelle 1971 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-73 Chevelle Emission Vehicles in 50 States
Not Legal for use on 70-72 Chevelle Emission Vehicles in 50 States
Chevrolet Chevelle 1972 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-73 Chevelle Emission Vehicles in 50 States
Not Legal for use on 70-72 Chevelle Emission Vehicles in 50 States
Chevrolet Chevelle 1973 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-73 Chevelle Emission Vehicles in 50 States
Chevrolet Chevy II 1968 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Will not fit 67-69 Camaro or 68-74 Nova with Factory Saginaw 800 power steering box
Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 Nova with rack steering
Mid Length
with Floor Shifter
Not Legal for use on 1968 Chevy II Emission Vehicles in 50 States
Chevrolet El Camino 1968 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 68-69 El Camino Emission Vehicles in 50 States
Chevrolet El Camino 1969 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 68-69 El Camino Emission Vehicles in 50 States
Chevrolet El Camino 1970 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 El Camino Emission Vehicles in 50 States
Not Legal for use on 70-72 El Camino Emission Vehicles in 50 States
Chevrolet El Camino 1971 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 El Camino Emission Vehicles in 50 States
Not Legal for use on 70-72 El Camino Emission Vehicles in 50 States
Chevrolet El Camino 1972 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 El Camino Emission Vehicles in 50 States
Not Legal for use on 70-72 El Camino Emission Vehicles in 50 States
Chevrolet El Camino 1973 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 El Camino Emission Vehicles in 50 States
Chevrolet El Camino 1974 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 El Camino Emission Vehicles in 50 States
Chevrolet El Camino 1975 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 El Camino Emission Vehicles in 50 States
Chevrolet Impala 1965 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 65-67 Impala Emission Vehicles in 50 States
Not Legal for use on 68-69 Impala Emission Vehicles in 50 States
Chevrolet Impala 1966 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Impala Emission Vehicles in 50 States
Not Legal for use on 68-69 Impala Emission Vehicles in 50 States
Legal for use on 65-67 Impala Emission Vehicles in 50 States
Chevrolet Impala 1967 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Impala Emission Vehicles in 50 States
Not Legal for use on 68-69 Impala Emission Vehicles in 50 States
Legal for use on 65-67 Impala Emission Vehicles in 50 States
Chevrolet Impala 1968 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Impala Emission Vehicles in 50 States
Not Legal for use on 68-69 Impala Emission Vehicles in 50 States
Legal for use on 65-67 Impala Emission Vehicles in 50 States
Chevrolet Impala 1969 7.0L / 427 / V8
6.5L / 396 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Legal for use on 66-67 Impala Emission Vehicles in 50 States
Not Legal for use on 68-69 Impala Emission Vehicles in 50 States
Legal for use on 65-67 Impala Emission Vehicles in 50 States
Chevrolet Impala 1970 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Impala Emission Vehicles in 50 States
Chevrolet Impala 1971 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Impala Emission Vehicles in 50 States
Not Legal for use on 71-72 Impala Emission Vehicles in 50 States
Chevrolet Impala 1972 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Impala Emission Vehicles in 50 States
Not Legal for use on 71-72 Impala Emission Vehicles in 50 States
Chevrolet Impala 1973 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Impala Emission Vehicles in 50 States
Chevrolet Impala 1974 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-74 Impala Emission Vehicles in 50 States
Chevrolet Monte Carlo 1970 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 Monte Carlo Emission Vehicles in 50 States
Not Legal for use on 70-72 Monte Carlo Emission Vehicles in 50 States
Chevrolet Monte Carlo 1971 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 Monte Carlo Emission Vehicles in 50 States
Not Legal for use on 70-72 Monte Carlo Emission Vehicles in 50 States
Chevrolet Monte Carlo 1972 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 Monte Carlo Emission Vehicles in 50 States
Not Legal for use on 70-72 Monte Carlo Emission Vehicles in 50 States
Chevrolet Monte Carlo 1973 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 Monte Carlo Emission Vehicles in 50 States
Chevrolet Monte Carlo 1974 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 Monte Carlo Emission Vehicles in 50 States
Chevrolet Monte Carlo 1975 7.4L / 454 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Mid Length
with Floor Shifter
Not Legal for use on 70-75 Monte Carlo Emission Vehicles in 50 States
Chevrolet Nova 1969 6.5L / 396 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Will not fit 67-69 Camaro or 68-74 Nova with Factory Saginaw 800 power steering box
Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 Nova with rack steering
Mid Length
with Floor Shifter
Not Legal for use on 1969 Nova Emission Vehicles in 50 States
Chevrolet Nova 1970 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Will not fit 67-69 Camaro or 68-74 Nova with Factory Saginaw 800 power steering box
Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 Nova with rack steering
Mid Length
with Floor Shifter
Not Legal for use on 70-72 Nova Emission Vehicles in 50 States
Chevrolet Nova 1971 7.4L / 454 / V8
6.6L / 402 / V8		 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Will not fit 67-69 Camaro or 68-74 Nova with Factory Saginaw 800 power steering box
Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 Nova with rack steering
Mid Length
with Floor Shifter
Not Legal for use on 70-72 Nova Emission Vehicles in 50 States
Chevrolet Nova 1972 6.6L / 402 / V8 Not recommended for Gen-6 502cid engines with aluminum heads.
Big block frame stands and motor mounts required for proper fit.
Requires removal or modification of locking steering columns if equipped.
Will not fit 67-69 Camaro or 68-74 Nova with Factory Saginaw 800 power steering box
Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 Nova with rack steering
Mid Length
with Floor Shifter
Not Legal for use on 70-72 Nova Emission Vehicles in 50 States
GMC C15 Suburban 1975 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C15 Suburban Emission Vehicles in 50 States
GMC C15 Suburban 1976 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C15 Suburban Emission Vehicles in 50 States
GMC C15 Suburban 1977 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C15 Suburban Emission Vehicles in 50 States
GMC C15 Suburban 1978 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C15 Suburban Emission Vehicles in 50 States
GMC C15/C1500 Pickup 1968 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 GMC C15/C1500 Emission Vehicles in 50 States
GMC C15/C1500 Pickup 1969 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 GMC C15/C1500 Emission Vehicles in 50 States
GMC C15/C1500 Pickup 1970 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C15/C1500 Emission Vehicles in 50 States
GMC C15/C1500 Pickup 1971 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C15/C1500 Emission Vehicles in 50 States
GMC C15/C1500 Pickup 1972 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C15/C1500 Emission Vehicles in 50 States
GMC C15/C1500 Pickup 1973 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 GMC C15/C1500 Emission Vehicles in 50 States
GMC C15/C1500 Pickup 1974 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 GMC C15/C1500 Emission Vehicles in 50 States
GMC C15/C1500 Suburban 1968 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 GMC C15/C1500 Suburban Emission Vehicles in 50 States
GMC C15/C1500 Suburban 1969 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 GMC C15/C1500 Suburban Emission Vehicles in 50 States
GMC C15/C1500 Suburban 1970 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C15/C1500 Suburban Emission Vehicles in 50 States
GMC C15/C1500 Suburban 1971 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C15/C1500 Suburban Emission Vehicles in 50 States
GMC C15/C1500 Suburban 1972 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C15/C1500 Suburban Emission Vehicles in 50 States
GMC C15/C1500 Suburban 1973 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 GMCC15/C1500 Suburban Emission Vehicles in 50 States
GMC C15/C1500 Suburban 1974 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 GMCC15/C1500 Suburban Emission Vehicles in 50 States
GMC C15 1975 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C15 Emission Vehicles in 50 States
GMC C15 1976 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C15 Emission Vehicles in 50 States
GMC C15 1977 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C15 Emission Vehicles in 50 States
GMC C15 1978 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C15 Emission Vehicles in 50 States
GMC C25 Suburban 1975 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C25 Suburban Emission Vehicles in 50 States
GMC C25 Suburban 1976 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C25 Suburban Emission Vehicles in 50 States
GMC C25 Suburban 1977 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C25 Suburban Emission Vehicles in 50 States
GMC C25 Suburban 1978 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C25 Suburban Emission Vehicles in 50 States
GMC C25/C2500 Pickup 1968 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 GMC C25/C2500 Pickup Emission Vehicles in 50 States
GMC C25/C2500 Pickup 1969 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 GMC C25/C2500 Pickup Emission Vehicles in 50 States
GMC C25/C2500 Pickup 1970 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C25/C2500 Emission Vehicles in 50 States
GMC C25/C2500 Pickup 1971 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C25/C2500 Emission Vehicles in 50 States
GMC C25/C2500 Pickup 1972 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C25/C2500 Emission Vehicles in 50 States
GMC C25/C2500 Pickup 1973 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 GMC C25/C2500 Pickup Emission Vehicles in 50 States
GMC C25/C2500 Pickup 1974 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 GMC C25/C2500 Pickup Emission Vehicles in 50 States
GMC C25/C2500 Suburban 1968 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 GMC C25/C2500 Suburban Emission Vehicles in 50 States
GMC C25/C2500 Suburban 1969 6.5L / 396 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 68-69 GMC C25/C2500 Suburban Emission Vehicles in 50 States
GMC C25/C2500 Suburban 1970 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C25/C2500 Suburban Emission Vehicles in 50 States
GMC C25/C2500 Suburban 1971 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C25/C2500 Suburban Emission Vehicles in 50 States
GMC C25/C2500 Suburban 1972 6.6L / 402 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 70-72 GMC C25/C2500 Suburban Emission Vehicles in 50 States
GMC C25/C2500 Suburban 1973 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 GMC C25/C2500 Suburban Emission Vehicles in 50 States
GMC C25/C2500 Suburban 1974 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 73-74 GMC C25/C2500 Suburban Emission Vehicles in 50 States
GMC C25 1975 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C25 Emission Vehicles in 50 States
GMC C25 1976 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C25 Emission Vehicles in 50 States
GMC C25 1977 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C25 Emission Vehicles in 50 States
GMC C25 1978 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 75-78 GMC C25 Emission Vehicles in 50 States
GMC Sprint 1971 7.4L / 454 / V8
6.6L / 402 / V8		 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 71-75 Sprint Emission Vehicles in 50 States
GMC Sprint 1972 7.4L / 454 / V8
6.6L / 402 / V8		 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 71-75 Sprint Emission Vehicles in 50 States
GMC Sprint 1973 7.4L / 454 / V8 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 71-75 Sprint Emission Vehicles in 50 States
GMC Sprint 1974 7.4L / 454 / V8
6.6L / 402 / V8		 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 71-75 Sprint Emission Vehicles in 50 States
GMC Sprint 1975 7.4L / 454 / V8
6.6L / 402 / V8		 Big block frame stands and motor mounts required for proper fit.
Will work with 4L60E and 4L80E transmissions.
Mid Length
without Catalytic Converter
Not Legal for use on 71-75 Sprint Emission Vehicles in 50 States
Pontiac Firebird 1967 6.6L / 400 / V8
5.3L / 326 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1968 6.6L / 400 / V8
5.7L / 350 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1969 6.6L / 400 / V8
5.7L / 350 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1970 6.6L / 400 / V8
5.7L / 350 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1971 7.5L / 455 / V8
6.6L / 400 / V8
5.7L / 350 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1972 7.5L / 455 / V8
6.6L / 400 / V8
5.7L / 350 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1973 7.5L / 455 / V8
6.6L / 400 / V8
5.7L / 350 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1974 7.5L / 455 / V8
6.6L / 400 / V8
5.7L / 350 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1975 7.5L / 455 / V8
5.7L / 350 / V8
6.6L / 400 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1976 7.5L / 455 / V8
5.7L / 350 / V8
6.6L / 400 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1977 5.0L / 305 / V8
5.7L / 350 / V8
6.6L / 400 / V8
4.9L / 301 / V8
6.6L / 403 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1978 6.6L / 400 / V8
6.6L / 403 / V8
5.0L / 305 / V8
5.7L / 350 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1979 6.6L / 400 / V8
6.6L / 403 / V8
5.0L / 305 / V8
5.7L / 350 / V8
4.9L / 301 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1980 4.3L / 265 / V8
5.0L / 305 / V8
4.9L / 301 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States
Pontiac Firebird 1981 5.0L / 305 / V8
4.4L / 267 / V8
4.3L / 265 / V8
4.9L / 301 / V8		 Big Block Chevrolet Swap 396-502
Mid Length Design for Maximum Ground Clearance.
Will not fit with Factory Saginaw 800 power steering box.
Not recommended for Gen-6 502cid engines with aluminum heads.
Fits with manual and auto trans floor shifts only.
Big block frame stands and motor mounts required for proper fit.
Will fit OE Suspension & Detroit Speed & Engineering front subframes.
Mid Length
Legal for use on 1967 Firebird Emission Vehicles in 50 States
Not Legal for use on 68-81 Firebird Emission Vehicles in 50 States

Specifications:

Collector Attachment 3-Bolt Flange
Collector Diameter 3.0 IN
Collector Port Diameter 3.0 IN
Cylinder Head Port Shape SAP
Design Mid Length
Flange Thickness 0.375 IN
Gasket Or Seal Included Yes
Gaskets Included Yes
Grade Type Performance
Header Style Mid Length
Mounting Hardware Included Yes
Oxygen Sensor Port No
Part Type Exhaust Header
Port Shape Round
Primary Tube Outside Diameter 1.75 IN
Proposition 65 www.P65Warnings.ca.gov
Tube Wall Thickness 16 GU
Warranty Time 24 Months

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Doug's Headers 1963-86 Chevy/GMC Big Block 1 3/4" Mid-Length Header D306:
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