Upgrade your compatible Chevrolet or GMC square-body truck or full-size SUV with these polished stainless steel long tube exhaust headers. Designed for compatible Small Block Chevy V8 applications, they provide a long-tube exhaust configuration for truck exhaust upgrades, engine rebuilds, and restoration projects.
The polished stainless steel construction delivers a bright engine-bay appearance, while redesigned cylinder-head mounting flanges are checked for proper header-to-head bolt-hole alignment. The package includes standard steel/fiber header gaskets, collector gaskets, and mounting hardware.
These headers are listed for 1973–1987 Chevrolet and GMC square-body pickups and 1973–1991 full-size square-body Blazer, Jimmy, and Suburban models. Some installations may require minor clearance adjustments, depending on the vehicle configuration.
| Feature | Details |
|---|---|
| Product Type | Long Tube Exhaust Headers |
| Vehicle Makes | Chevrolet and GMC |
| Primary Applications | Square-Body Trucks and Full-Size SUVs |
| Pickup Fitment | 1973–1987 |
| SUV Fitment | 1973–1991 Blazer, Jimmy, and Suburban |
| Engine Compatibility | 305, 350, 400 SBC V8 |
| Additional Engine Applications | 283, 307, 327 SBC, subject to fitment |
| Fuel System Applications | Carbureted and TBI |
| Material | Stainless Steel |
| Finish | Polished |
| Included Gaskets | Standard Steel/Fiber Header Gaskets and Collector Gaskets |
| Mounting Hardware | Included |
Exclusion: These headers do not fit 1988–1991 new-body-style OBS pickups. The extended fitment through 1991 applies only to the listed square-body SUVs.
Listed engine applications include:
Both carbureted and throttle body injection (TBI) applications are listed, subject to vehicle and engine compatibility.
| Question | Answer |
|---|---|
| Which vehicles are these headers designed for? | Listed 1973–1987 Chevrolet/GMC square-body pickups and 1973–1991 full-size square-body SUVs. |
| Which engines are compatible? | Listed 305, 350, and 400 SBC V8 engines, with 283, 307, and 327 engines also potentially compatible subject to fitment. |
| Can they be used with TBI engines? | TBI applications are listed, subject to engine, cylinder-head, and installation compatibility. |
| Are gaskets and mounting hardware included? | Yes. Standard steel/fiber header gaskets, collector gaskets, and mounting hardware are included. |
| Will these fit 1988–1991 OBS pickups? | No. The listed 1988–1991 coverage applies to the specified square-body SUVs, not new-body-style OBS pickups. |
| Is modification required for installation? | Some four-wheel-drive models or specific engine-mount configurations may require minor modifications or clearance work. |
Fitment Note: Confirm your vehicle body style, model year, engine, cylinder-head configuration, and available clearance before purchasing. Installation requirements may vary by chassis and drivetrain configuration.
WARNING: RACE / COMPETITION USE ONLY
This part is built and sold only for racing vehicles used solely in closed-course competition. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. Off-road or off-highway use is not competition use. Installing this part on a vehicle used on public roads may violate the federal Clean Air Act, 42 U.S.C. 7522(a)(3), and state law, and may result in civil or criminal penalties, failed inspections and loss of registration. Emissions laws vary by state. Check yours before you buy.
NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. THE SALE, USE OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. 7522(a)(3)).
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