Polished Stainless Steel Long Tube Headers for Chevy/GMC Square-Body Trucks and SUVs
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.
Key Features
- Polished Stainless Steel: Provides a bright, clean engine-bay appearance.
- Long Tube Design: Intended for compatible truck exhaust upgrades and rebuilds.
- Small Block Chevy Compatibility: Designed for listed 305, 350, and 400 SBC engines, with additional traditional SBC applications subject to fitment.
- Revised Mounting Flanges: Checked for proper header-to-cylinder-head bolt-hole alignment.
- Standard Gasket Package: Includes steel/fiber header gaskets and collector gaskets.
- Mounting Hardware Included: Supplied with the listed installation components.
- Truck and SUV Applications: Fits specified square-body Chevrolet and GMC platforms.
Technical Specifications
| 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 |
Vehicle Fitment
- 1973–1987 Chevrolet Square-Body Pickups
- 1973–1987 GMC Square-Body Pickups
- 1973–1991 Chevrolet Blazer and Suburban
- 1973–1991 GMC Jimmy and Suburban
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.
Engine Compatibility
Listed engine applications include:
- 305 cu. in. / 5.0L Small Block Chevy V8
- 350 cu. in. / 5.7L Small Block Chevy V8
- 400 cu. in. Small Block Chevy V8
- Traditional 283, 307, and 327 SBC engines in supported chassis, subject to cylinder-head configuration and installation clearance
Both carbureted and throttle body injection (TBI) applications are listed, subject to vehicle and engine compatibility.
Package Includes
- One left-side exhaust header
- One right-side exhaust header
- Standard steel/fiber header gaskets
- Standard collector gaskets
- Mounting hardware
Installation Notes
- Some four-wheel-drive applications may require minor leaf spring shackle bolt modifications.
- Certain models may require clearance work around the driver-side engine mount bracket.
- Verify cylinder-head compatibility, spark plug and wire clearance, and exhaust connection requirements before installation.
- Review the installation video for additional application-specific details.
Frequently Asked Questions
| 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.
