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B&M Steel SFI Certified Flexplate, Small Block Chevrolet 20232

B&M Steel SFI Certified Flexplate, Small Block Chevrolet 20232
B&M Steel SFI Certified Flexplate, Small Block Chevrolet 20232
$337.99 ea
NEWARRIVING SOONEstimated Ship Date 07/31/2025 (If Ordered Today)24 Available from HOLLEY PERFORMANCE PRODUCTS as of 07/14/2025
Model: 3998132
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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As performance levels increase, an O.E. style flexplate just won't cut it and a stronger option is a necessity to prevent transmission and/or converter failure. B&M has you covered with our high performance flexplate designed for 1955-1985 400ci small block chevy V8 engines (externally balanced) with two piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5-inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification insuring the ultimate in safety and performance. The assembly is then Zinc plated and treated with a Chromate Conversion Coating for added corrosion resistance and durability. B&M SFI approved flexplates are ideal for extreme duty race applications as well as street cars, tow vehicles or other vehicles needing the added protection and toughness that B&M has been delivering since 1953. Compatible with Powerglide, TH350, TH400 and TH700R4 automatic transmissions.
Features:
  • NHRA and IHRA Legal For All Classes
  • Dual Pattern 10.75 and 11.5-Inch
  • Includes SFI Certification Sticker
  • Ideal For Street Applications
  • Zinc Plated Chromate Finish
  • To Extreme Duty Racing
  • Proven B&M Quality
Fits 1955-1985 GM 400 cid small block engine. For externally balanced engines uses a 168 tooth ring gear. Has 10.75-inch and 11.5-inch bolt patterns. Compatible with Powerglide, TH350, TH400, and TH700R4 automation transmissions
Installation Notes:
Fits 1955-1985 GM 400 cid small block engine. For externally balanced engines uses a 168 tooth ring gear. Has 10.75-inch and 11.5-inch bolt patterns. Compatible with Powerglide, TH350, TH400, and TH700R4 automation transmissions
About B&M Racing

B&M® specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluid. B&M Performance & Off-Road has been at the vanguard of the growing automotive aftermarket since the early 1950s. Racers themselves, B&M’s founders identified the needs of local performance enthusiasts and developed products to fill those needs. B&M specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, automatic shift handles, extended transfer case handles, cast deep aluminum transmission pans, differential covers, transmission coolers, power steering coolers, automatic transmission fluid, and transmission accessories for performance street, truck, Jeep, and off-road applications.

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
Buick Gran Sport 1967 6.6L / 400 / V8
Buick LeSabre 1975 6.6L / 400 / V8
Buick Skylark 1967 6.6L / 400 / V8
Buick Sportwagon 1968 6.6L / 400 / V8
Buick Sportwagon 1969 6.6L / 400 / V8
Chevrolet Bel Air 1975 6.6L / 400 / V8
Chevrolet C10 1976 6.6L / 400 / V8
Chevrolet C10 1977 6.6L / 400 / V8
Chevrolet C10 1978 6.6L / 400 / V8
Chevrolet C10 1979 6.6L / 400 / V8
Chevrolet C10 1980 6.6L / 400 / V8
Chevrolet C20 Suburban 1976 6.6L / 400 / V8
Chevrolet C20 Suburban 1977 6.6L / 400 / V8
Chevrolet C20 Suburban 1978 6.6L / 400 / V8
Chevrolet C20 Suburban 1979 6.6L / 400 / V8
Chevrolet C20 Suburban 1980 6.6L / 400 / V8
Chevrolet C20 1976 6.6L / 400 / V8
Chevrolet C20 1977 6.6L / 400 / V8
Chevrolet C20 1978 6.6L / 400 / V8
Chevrolet C20 1979 6.6L / 400 / V8
Chevrolet C20 1980 6.6L / 400 / V8
Chevrolet C30 1976 6.6L / 400 / V8
Chevrolet C30 1977 6.6L / 400 / V8
Chevrolet C30 1978 6.6L / 400 / V8
Chevrolet C30 1979 7.4L / 454 / V8
Chevrolet Caprice 1975 6.6L / 400 / V8
Chevrolet Caprice 1976 6.6L / 400 / V8
Chevrolet El Camino 1975 6.6L / 400 / V8
Chevrolet El Camino 1976 6.6L / 400 / V8
Chevrolet G10 1976 6.6L / 400 / V8
Chevrolet G20 1975 6.6L / 400 / V8
Chevrolet G20 1976 6.6L / 400 / V8
Chevrolet G20 1977 6.6L / 400 / V8
Chevrolet G20 1978 6.6L / 400 / V8
Chevrolet G20 1979 6.6L / 400 / V8
Chevrolet G20 1980 6.6L / 400 / V8
Chevrolet G30 1975 6.6L / 400 / V8
Chevrolet G30 1976 6.6L / 400 / V8
Chevrolet G30 1977 6.6L / 400 / V8
Chevrolet G30 1978 6.6L / 400 / V8
Chevrolet G30 1979 6.6L / 400 / V8
Chevrolet G30 1980 6.6L / 400 / V8
Chevrolet Impala 1975 6.6L / 400 / V8
Chevrolet Impala 1976 6.6L / 400 / V8
Chevrolet K10 Suburban 1976 6.6L / 400 / V8
Chevrolet K10 Suburban 1977 6.6L / 400 / V8
Chevrolet K10 Suburban 1978 6.6L / 400 / V8
Chevrolet K10 Suburban 1979 6.6L / 400 / V8
Chevrolet K10 1975 6.6L / 400 / V8
Chevrolet K10 1976 6.6L / 400 / V8
Chevrolet K10 1977 6.6L / 400 / V8
Chevrolet K10 1978 6.6L / 400 / V8
Chevrolet K10 1979 6.6L / 400 / V8
Chevrolet K10 1980 6.6L / 400 / V8
Chevrolet K20 Suburban 1975 6.6L / 400 / V8
Chevrolet K20 Suburban 1976 6.6L / 400 / V8
Chevrolet K20 Suburban 1977 6.6L / 400 / V8
Chevrolet K20 Suburban 1978 6.6L / 400 / V8
Chevrolet K20 Suburban 1979 6.6L / 400 / V8
Chevrolet K20 Suburban 1980 6.6L / 400 / V8
Chevrolet K20 1975 6.6L / 400 / V8
Chevrolet K20 1976 6.6L / 400 / V8
Chevrolet K20 1977 6.6L / 400 / V8
Chevrolet K20 1978 6.6L / 400 / V8
Chevrolet K20 1979 6.6L / 400 / V8
Chevrolet K20 1980 6.6L / 400 / V8
Chevrolet K30 1977 6.6L / 400 / V8
Chevrolet K30 1978 6.6L / 400 / V8
Chevrolet K30 1979 6.6L / 400 / V8
Chevrolet K30 1980 6.6L / 400 / V8
Chevrolet K5 Blazer 1975 6.6L / 400 / V8
Chevrolet K5 Blazer 1976 6.6L / 400 / V8
Chevrolet K5 Blazer 1977 6.6L / 400 / V8
Chevrolet K5 Blazer 1978 6.6L / 400 / V8
Chevrolet K5 Blazer 1979 6.6L / 400 / V8
Chevrolet Laguna 1975 6.6L / 400 / V8
Chevrolet Laguna 1976 6.6L / 400 / V8
Chevrolet Malibu 1975 6.6L / 400 / V8
Chevrolet Malibu 1976 6.6L / 400 / V8
Chevrolet Monte Carlo 1975 6.6L / 400 / V8
Chevrolet Monte Carlo 1976 6.6L / 400 / V8
GMC C1500 1979 6.6L / 400 / V8
GMC C1500 1980 6.6L / 400 / V8
GMC C15 1976 6.6L / 400 / V8
GMC C15 1978 6.6L / 400 / V8
GMC C25 Suburban 1978 6.6L / 400 / V8
GMC C2500 Suburban 1980 6.6L / 400 / V8
GMC C2500 1979 6.6L / 400 / V8
GMC C25 1976 6.6L / 400 / V8
GMC C25 1977 6.6L / 400 / V8
GMC C25 1978 6.6L / 400 / V8
GMC C3500 1979 6.6L / 400 / V8
GMC C35 1976 6.6L / 400 / V8
GMC C35 1977 6.6L / 400 / V8
GMC C35 1978 6.6L / 400 / V8
GMC G1500 1979 6.6L / 400 / V8
GMC G15 1976 6.6L / 400 / V8
GMC G2500 1979 6.6L / 400 / V8
GMC G2500 1980 6.6L / 400 / V8
GMC G25 1975 6.6L / 400 / V8
GMC G25 1976 6.6L / 400 / V8
GMC G25 1977 6.6L / 400 / V8
GMC G25 1978 6.6L / 400 / V8
GMC G3500 1979 6.6L / 400 / V8
GMC G3500 1980 6.6L / 400 / V8
GMC G35 1975 6.6L / 400 / V8
GMC G35 1976 6.6L / 400 / V8
GMC G35 1977 6.6L / 400 / V8
GMC G35 1978 6.6L / 400 / V8
GMC Jimmy 1975 6.6L / 400 / V8
GMC Jimmy 1976 6.6L / 400 / V8
GMC Jimmy 1977 6.6L / 400 / V8
GMC Jimmy 1978 6.6L / 400 / V8
GMC Jimmy 1979 6.6L / 400 / V8
GMC K15 Suburban 1975 6.6L / 400 / V8
GMC K15 Suburban 1976 6.6L / 400 / V8
GMC K15 Suburban 1977 6.6L / 400 / V8
GMC K15 Suburban 1978 6.6L / 400 / V8
GMC K1500 Suburban 1979 6.6L / 400 / V8
GMC K1500 Suburban 1980 6.6L / 400 / V8
GMC K1500 1979 6.6L / 400 / V8
GMC K1500 1980 6.6L / 400 / V8
GMC K15 1975 6.6L / 400 / V8
GMC K15 1976 6.6L / 400 / V8
GMC K15 1977 6.6L / 400 / V8
GMC K15 1978 6.6L / 400 / V8
GMC K25 Suburban 1975 6.6L / 400 / V8
GMC K25 Suburban 1976 6.6L / 400 / V8
GMC K25 Suburban 1977 6.6L / 400 / V8
GMC K25 Suburban 1978 6.6L / 400 / V8
GMC K2500 Suburban 1979 6.6L / 400 / V8
GMC K2500 Suburban 1980 6.6L / 400 / V8
GMC K2500 1979 6.6L / 400 / V8
GMC K2500 1980 6.6L / 400 / V8
GMC K25 1975 6.6L / 400 / V8
GMC K25 1976 6.6L / 400 / V8
GMC K25 1977 6.6L / 400 / V8
GMC K25 1978 6.6L / 400 / V8
GMC K3500 1979 6.6L / 400 / V8
GMC K3500 1980 6.6L / 400 / V8
GMC K35 1977 6.6L / 400 / V8
GMC K35 1978 6.6L / 400 / V8
GMC Sprint 1975 6.6L / 400 / V8
GMC Sprint 1976 6.6L / 400 / V8
Oldsmobile 442 1968 6.6L / 400 / V8
Oldsmobile 442 1969 6.6L / 400 / V8
Oldsmobile 98 1975 6.6L / 400 / V8
Oldsmobile Custom Cruiser 1975 6.6L / 400 / V8
Oldsmobile Cutlass 1968 6.6L / 400 / V8
Oldsmobile Delta 88 1975 6.6L / 400 / V8
Oldsmobile Vista Cruiser 1968 6.6L / 400 / V8
Oldsmobile Vista Cruiser 1969 6.6L / 400 / V8
Pontiac Bonneville 1968 6.6L / 400 / V8
Pontiac Bonneville 1969 6.6L / 400 / V8
Pontiac Bonneville 1970 6.6L / 400 / V8
Pontiac Bonneville 1971 6.6L / 400 / V8
Pontiac Bonneville 1972 6.6L / 400 / V8
Pontiac Bonneville 1973 6.6L / 400 / V8
Pontiac Bonneville 1974 6.6L / 400 / V8
Pontiac Bonneville 1975 6.6L / 400 / V8
Pontiac Bonneville 1976 6.6L / 400 / V8
Pontiac Bonneville 1977 6.6L / 400 / V8
Pontiac Bonneville 1978 6.6L / 400 / V8
Pontiac Catalina 1968 6.6L / 400 / V8
Pontiac Catalina 1969 6.6L / 400 / V8
Pontiac Catalina 1970 6.6L / 400 / V8
Pontiac Catalina 1971 6.6L / 400 / V8
Pontiac Catalina 1972 6.6L / 400 / V8
Pontiac Catalina 1973 6.6L / 400 / V8
Pontiac Catalina 1974 6.6L / 400 / V8
Pontiac Catalina 1975 6.6L / 400 / V8
Pontiac Catalina 1976 6.6L / 400 / V8
Pontiac Catalina 1977 6.6L / 400 / V8
Pontiac Catalina 1978 6.6L / 400 / V8
Pontiac Executive 1968 6.6L / 400 / V8
Pontiac Executive 1969 6.6L / 400 / V8
Pontiac Executive 1970 6.6L / 400 / V8
Pontiac Firebird 1968 6.6L / 400 / V8
Pontiac Firebird 1969 6.6L / 400 / V8
Pontiac Firebird 1970 6.6L / 400 / V8
Pontiac Firebird 1971 6.6L / 400 / V8
Pontiac Firebird 1972 6.6L / 400 / V8
Pontiac Firebird 1973 6.6L / 400 / V8
Pontiac Firebird 1974 6.6L / 400 / V8
Pontiac Firebird 1975 6.6L / 400 / V8
Pontiac Firebird 1976 6.6L / 400 / V8
Pontiac Firebird 1977 6.6L / 400 / V8
Pontiac Firebird 1978 6.6L / 400 / V8
Pontiac Firebird 1979 6.6L / 400 / V8
Pontiac GTO 1968 6.6L / 400 / V8
Pontiac GTO 1969 6.6L / 400 / V8
Pontiac GTO 1970 6.6L / 400 / V8
Pontiac GTO 1971 6.6L / 400 / V8
Pontiac GTO 1972 6.6L / 400 / V8
Pontiac GTO 1973 6.6L / 400 / V8
Pontiac Grand Am 1973 6.6L / 400 / V8
Pontiac Grand Am 1974 6.6L / 400 / V8
Pontiac Grand Am 1975 6.6L / 400 / V8
Pontiac Grand LeMans 1975 6.6L / 400 / V8
Pontiac Grand LeMans 1976 6.6L / 400 / V8
Pontiac Grand LeMans 1977 6.6L / 400 / V8
Pontiac Grand Prix 1968 6.6L / 400 / V8
Pontiac Grand Prix 1969 6.6L / 400 / V8
Pontiac Grand Prix 1970 6.6L / 400 / V8
Pontiac Grand Prix 1971 6.6L / 400 / V8
Pontiac Grand Prix 1972 6.6L / 400 / V8
Pontiac Grand Prix 1973 6.6L / 400 / V8
Pontiac Grand Prix 1974 6.6L / 400 / V8
Pontiac Grand Prix 1975 6.6L / 400 / V8
Pontiac Grand Prix 1976 6.6L / 400 / V8
Pontiac Grand Prix 1977 6.6L / 400 / V8
Pontiac Grand Safari 1975 6.6L / 400 / V8
Pontiac Grand Safari 1976 6.6L / 400 / V8
Pontiac Grand Safari 1977 6.6L / 400 / V8
Pontiac Grand Safari 1978 6.6L / 400 / V8
Pontiac Grandville 1972 6.6L / 400 / V8
Pontiac Grandville 1973 6.6L / 400 / V8
Pontiac Grandville 1974 6.6L / 400 / V8
Pontiac Grandville 1975 6.6L / 400 / V8
Pontiac LeMans 1968 6.6L / 400 / V8
Pontiac LeMans 1969 6.6L / 400 / V8
Pontiac LeMans 1970 6.6L / 400 / V8
Pontiac LeMans 1971 6.6L / 400 / V8
Pontiac LeMans 1972 6.6L / 400 / V8
Pontiac LeMans 1973 6.6L / 400 / V8
Pontiac LeMans 1974 6.6L / 400 / V8
Pontiac LeMans 1975 6.6L / 400 / V8
Pontiac LeMans 1976 6.6L / 400 / V8
Pontiac LeMans 1977 6.6L / 400 / V8
Pontiac Tempest 1968 6.6L / 400 / V8
Pontiac Tempest 1969 6.6L / 400 / V8
Pontiac Tempest 1970 6.6L / 400 / V8

Specifications:

# of Teeth 168
Application Chevrolet
Balance External
California Proposition 65 Chemical Name Cadmium and cadmium compounds
California Proposition 65 Required Yes
Crankshaft Bolt Hole Count 6
Dual Pattern No
Emission Code 5
Engine Small Block Chevy
IHRA Legal Yes
NHRA Legal Yes
Outside Diameter (in) 14.1, 14.1
Part Type Automatic Transmission Flexplate
Product Type Flexplates
Proposition 65 www.P65Warnings.ca.gov
SFI Approved Yes
SFI Certification 29.1
SFI Certification Sticker Included
Warranty Time 12 Months
Weight (lb) 6.25

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B&M Steel SFI Certified Flexplate, Small Block Chevrolet 20232: