Exhaust Manifold
Exhaust Header for 1988-1997 Chevy GMC Truck Small Block SBC 307 327 305 350 400
A 1-3/4 inch shorty exhaust header for 1988-1997 Chevy and GMC trucks with Small Block SBC engines including 307, 327, 305, 350, and 400 cubic inch displacements. It replaces the factory exhaust manifold with a single piece header designed for bolt-on fitment. Fitment is specific to the listed years and engine types and does not cover trucks with factory exhaust manifolds that have different routing.
- Fitment1988-1997 Chevy and GMC Truck Small Block SBC 307, 327, 305, 350, 400
- ExclusionDoes not fit trucks with non-standard exhaust routing or factory manifolds with different bolt patterns
What You Get
Key Benefits
- 1-3/4 inch primary tubes improve exhaust flow compared to the restrictive factory manifold
- Gaskets and hardware included in the kit reduce installation time and prep work
Why Buyers Switch
Problems It Solves
- Factory exhaust manifolds restrict flow and increase exhaust gas temperature under load
- Cast iron manifolds crack or warp after repeated heat cycles and are hard to replace
- Mild steel headers rust at the flange and gasket surface within a few years
- Universal headers require cutting, welding, and custom fitting, which increases shop labour cost
Where It Is Used
Application Scenarios
- Classic truck restorers upgrading engine performance on 1988-1997 Chevy and GMC trucks
- Performance shops installing bolt-on headers for vintage small block engines
- Distributors stocking vehicle-specific headers for the 1988-1997 Small Block SBC market
- Online sellers needing a photographed, fitment-verified part with a clean product listing
Buyers
Who It Is For
- Performance parts distributors buying vintage truck exhaust hardware by the pallet
- Truck accessory wholesalers serving North American vintage truck owners
Construction
Technical Features
- Bolt-on replacement geometry that matches factory mounting points and routing
- Includes flange gaskets and mounting hardware for direct installation
Data
Specifications
| Fitment | 1988-1997 Chevy and GMC Truck Small Block SBC 307, 327, 305, 350, 400 |
|---|---|
| Exclusion | Does not fit trucks with non-standard exhaust routing or factory manifolds with different bolt patterns |
Material
Materials
- Flange gaskets
- Mounting hardware
Manufacturing
How It Is Made
Tube bending to match factory exhaust routing for 1988-1997 Small Block SBC trucks
Final fit check against factory manifold pattern before packing
Checks
Quality Control
- Flange bolt pattern and sealing face checked before welding
- Weld seams inspected for pinholes along the full joint
- Gaskets and hardware verified for correct size and quantity in each package
Private Label
Customisation Options
- Private label packaging and barcode labels on request
- Bulk cartons available for container orders instead of individual retail boxes
Comparison
Compared With The Alternatives
| Factory exhaust manifold | The stock manifold is designed for emissions and noise control, this header improves flow and engine response with a 1-3/4 inch bore |
|---|---|
| Universal header kit | A universal kit requires cutting, welding, and custom fitting, this one bolts on without modification |
Installation
Use Guide
- Confirm the truck is a 1988-1997 Chevy or GMC with a Small Block SBC engine and listed displacement
- Let the engine cool completely before removing the factory manifold
- Replace the factory gaskets rather than reusing them to prevent leaks
- Torque flange bolts evenly in a cross pattern to maintain sealing face flatness
- Recheck flange torque after the first heat cycle to ensure no loosening
More In This Family
Related Products
Answers
Questions About This Part
Will this fit a 1998 Chevy truck?
No. The part is designed for 1988-1997 models with Small Block SBC engines and does not cover 1998 or later trucks.
What size are the primary tubes?
1-3/4 inch. This matches the standard primary tube size for the Small Block SBC engines in this model range.
Are gaskets and hardware included?
Yes. The kit includes flange gaskets and mounting hardware for direct installation.
Can we get our own brand on the box?
Yes. Private label packaging and barcode labels can be arranged, and bulk cartons are available for container orders.
Is this street legal where I sell?
Emissions rules differ by market and we make no emissions approval claim for this part. Check your local regulations before resale.
Get This Part Quoted
Send the quantity you need and your market, and the reply will cover price, packing and lead time.