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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 |
| D336.pdf | 417.27KB |
| D336-B.pdf | 417.27KB |
| Make | Model | Years | Engine | Fitment Notes |
| Chevrolet | El Camino | 1978 | 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | El Camino | 1979 | 4.4L / 267 / V8 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | El Camino | 1980 | 4.4L / 267 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | El Camino | 1981 | 4.4L / 267 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | El Camino | 1982 | 4.4L / 267 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | El Camino | 1983 | 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | El Camino | 1984 | 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | El Camino | 1985 | 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | El Camino | 1986 | 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | El Camino | 1987 | 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Malibu | 1978 | 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Malibu | 1979 | 4.4L / 267 / V8 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Malibu | 1980 | 4.4L / 267 / V8 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Malibu | 1981 | 4.4L / 267 / V8 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Malibu | 1982 | 4.4L / 267 / V8 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Malibu | 1983 | 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1978 | 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1979 | 4.4L / 267 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1980 | 4.4L / 267 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1981 | 4.4L / 267 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1982 | 5.7L / 350 / V8 4.4L / 267 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1983 | 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1984 | 5.7L / 350 / V8 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1985 | 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1986 | 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1987 | 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Chevrolet | Monte Carlo | 1988 | 5.0L / 305 / 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Oldsmobile | Cutlass | 1978 | 5.7L / 350 / V8 5.0L / 305 / V8 |
Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Oldsmobile | Cutlass | 1979 | 5.7L / 350 / V8 5.0L / 305 / V8 |
Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Oldsmobile | Cutlass | 1980 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Bonneville | 1983 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Bonneville | 1984 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Bonneville | 1985 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Bonneville | 1986 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Grand Prix | 1978 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Grand Prix | 1979 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Grand Prix | 1980 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Grand Prix | 1983 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Grand Prix | 1984 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Grand Prix | 1985 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Grand Prix | 1986 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Pontiac | Grand Prix | 1987 | 5.0L / 305 / V8 | Fits Factory Installed Chevrolet 265-350 small block engines. 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. Requires removal or modification of locking steering columns if equipped. Installation requires left side A/C bracket part number H7608. 1979 and later vehicles with short compressors can use the stock bracket. Must use non-shell type motor mounts. Full-length |
| Collector Attachment | 3-Bolt Flange |
| Collector Diameter | 3.0 IN |
| Collector Port Diameter | 3.0 IN |
| Cylinder Head Port Shape | Oval |
| Design | Full-length |
| Flange Thickness | 0.375 IN |
| Gasket Or Seal Included | Yes |
| Gaskets Included | Yes |
| Grade Type | Performance |
| Header Style | Full-length |
| Mounting Hardware Included | Yes |
| Oxygen Sensor Port | No |
| Part Type | Exhaust Header |
| Port Shape | Oval |
| Primary Tube Outside Diameter | 1.75 IN |
| Proposition 65 | www.P65Warnings.ca.gov |
| Tube Wall Thickness | 16 GU |
| Warranty Time | 24 Months |