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 |
| D355.pdf | 330.8KB |
| D355-B.pdf | 330.8KB |
| Make | Model | Years | Engine | Fitment Notes |
| Chevrolet | Bel Air | 1955 | 4.3L / 265 / V8 | May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | Bel Air | 1956 | 4.3L / 265 / V8 | May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | Bel Air | 1957 | 4.3L / 265 / V8 | May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | One-Fifty Series | 1955 | 4.3L / 265 / V8 | May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | One-Fifty Series | 1956 | 4.3L / 265 / V8 | May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | One-Fifty Series | 1957 | 4.6L / 283 / V8 4.3L / 265 / V8 |
May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | Sedan Delivery | 1955 | 4.3L / 265 / V8 | May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | Sedan Delivery | 1956 | 4.3L / 265 / V8 | May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | Sedan Delivery | 1957 | 4.3L / 265 / V8 4.6L / 283 / V8 |
May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | Two-Ten Series | 1955 | 4.3L / 265 / V8 | May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | Two-Ten Series | 1956 | 4.3L / 265 / V8 | May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Chevrolet | Two-Ten Series | 1957 | 4.6L / 283 / V8 4.3L / 265 / V8 |
May require smaller front tires to avoid contact. Fits most angle plug heads. Will fit with 605 power steering box. Fits D-Port cylinder heads including ZZ4 crate engines. Will Not fit GM Fast Burn head PN 19300955 or SP350, SP383 & ZZ6 engines. Fenderwell without Air Conditioning |
| Collector Attachment | 3-Bolt Flange |
| Collector Diameter | 3.0 IN |
| Collector Port Diameter | 3.0 IN |
| Cylinder Head Port Shape | SAP |
| Design | Fenderwell |
| Flange Thickness | 0.375 IN |
| Gasket Or Seal Included | Yes |
| Gaskets Included | Yes |
| Grade Type | Performance |
| Header Style | Fenderwell |
| Mounting Hardware Included | Yes |
| Oxygen Sensor Port | No |
| Part Type | Exhaust Header |
| Port Shape | SAP |
| Primary Tube Outside Diameter | 1.75 IN |
| Proposition 65 | www.P65Warnings.ca.gov |
| Tube Wall Thickness | 16 GU |
| Warranty Time | 24 Months |
