Dougs Headers Metallic Ceramic Coated 1.625” Primary 3” Collector Long Tube Headers SBC 283-400 Chevy Camaro 1967-1973
Highlights
- Unmatched Horsepower Boost
- Reduces Backpressure
- 0.375" Machined Flanges
- 16-Gauge Steel Tubing

Dougs Headers Metallic Ceramic Coated 1.625” Primary 3” Collector Long Tube Headers for 1967-1973 Chevy Camaros with a 283-400 Small Block Engine.
The mandrel-bent tubes used to make these long tube headers (D308) provide enhanced airflow for Camaros with a 283-400 small block engine. They feature 1.625-inch primary tubes and a 3-inch collector with a 2.5-inch reducer exit. They also have a shiny metallic coating for excellent style!
Features and Benefits:
- Thick 0.375" machined flanges to prevent warping
- CNC mandrel-bent tubes for accurate fit and optimal flow
- Heavy-duty 16-gauge tubing for extended durability
- Tubes pre-polished to remove scratches before applying metallic ceramic coating
- Compact 3.0" collector with 2.5" reducer exit diameter
- Precisely engineered 1.625" primary tubes
- Includes comprehensive hardware and gaskets
Vehicle Fitment:
- 1967-1973 Chevy Camaro
- 283-400 SBC Engine
Fitment Notes:
- Fits most angle plug heads.
- Fits D-Port cylinder heads including ZZ4 crate engines. Will NOT fit GM Fast Burn head #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.
- Must use non-shell type motor mounts.
- Does NOT fit 67-69 Camaro with A/C.
California Residents: Proposition 65 Warning
Related Categories: Exhaust
Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:
- 1965 and older U.S. manufactured California certified vehicles
- 1967 and older U.S. manufactured federally certified vehicles
Installation Difficulty

Intermediate skill is required for this installation.
Installation Instructions
Vehicle Fitment
This product will fit the following Camaro years:
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,