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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.

| Download Name | File Size |
| D356.pdf | 335.29KB |
| D356-B.pdf | 335.29KB |
| Make | Model | Years | Engine | Fitment Notes |
| Chevrolet | Bel Air | 1955 | 4.3L / 265 / V8 | Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | Bel Air | 1956 | 4.3L / 265 / V8 | Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | Bel Air | 1957 | 4.6L / 283 / V8 4.3L / 265 / V8 |
Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | One-Fifty Series | 1955 | 4.3L / 265 / V8 | Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | One-Fifty Series | 1956 | 4.3L / 265 / V8 | Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | One-Fifty Series | 1957 | 4.6L / 283 / V8 4.3L / 265 / V8 |
Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | Sedan Delivery | 1955 | 4.3L / 265 / V8 | Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | Sedan Delivery | 1956 | 4.3L / 265 / V8 | Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | Sedan Delivery | 1957 | 4.6L / 283 / V8 4.3L / 265 / V8 |
Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | Two-Ten Series | 1955 | 4.3L / 265 / V8 | Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | Two-Ten Series | 1956 | 4.3L / 265 / V8 | Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Chevrolet | Two-Ten Series | 1957 | 4.6L / 283 / V8 4.3L / 265 / V8 |
Fits most angle plug heads. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Will not fit if engine is located more than 3/4” forward for HEI firewall clearance. Fits with Trans Dapt PN 4195 or 4177, Danchuck PN 871, 12184, 17756, 17757, & 16339 or equivalent Original bellhousing frame mounts must be removed. Will not work with Column Shift manual trans. Will fit with 605 power steering box. Header is designed to fit cars using original V-8 pitman arm part number 3719487 not 6 cylinder pitman arm number 3709877. Aftermarket pitman arms must be same configuration as OE for proper header fit. Mid Length |
| Collector Attachment | 3-Bolt Flange |
| Collector Diameter | 2.5 IN |
| Collector Port Diameter | 2.5 IN |
| Cylinder Head Port Shape | Oval |
| 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 | Oval |
| Primary Tube Outside Diameter | 1.625 IN |
| Proposition 65 | www.P65Warnings.ca.gov |
| Tube Wall Thickness | 16 GU |
| Warranty Time | 24 Months |