Exhaust Header · SKU SPAS-1067
STAINLESS STEEL EXHAUST HEADER FOR SMALL BLOCK FORD 289-351W TIGHT SHORTY SBF
A pair of 1.630 inch polished stainless steel exhaust headers for the 1986-1993 Ford Mustang 5.0L with the Small Block Ford 289-351W engine. Designed as a tight shorty fit with a round port flange and mid-steel chrome plated flange for corrosion resistance. Ships complete with two gaskets, two collectors, and nuts. Fitment is specific to the 1986-1993 Mustang 5.0L and does not cover other engine variants or model years.
- MaterialStainless Steel
- SurfacePolished
- Size1.630 inch primary tubes, 2.500 inch collector
- FlangeRound Port, Mid-Steel Chrome Plated
What You Get
Key Benefits
- 1.630 inch primary tubes improve exhaust flow compared to restrictive factory manifolds
- Polished stainless steel resists rust and heat cycling better than cast iron or mild steel
- Mid-steel chrome plated flanges resist corrosion at the bolted joint where coatings fail first
- Round port flange matches factory bolt pattern for direct bolt-on installation
- Tight shorty design fits in tight engine bays without requiring custom fabrication
Why Buyers Switch
Problems It Solves
- Factory cast iron manifolds restrict exhaust flow and reduce engine breathing
- Mild steel headers rust at the flange within a few years of use in humid or salty climates
- Poorly machined flanges leak at the manifold joint and require rework or replacement
- Universal headers require cutting, welding, and fitting, which increases shop labour time
Where It Is Used
Application Scenarios
- Performance shops upgrading 1986-1993 Mustangs with factory manifolds to better flowing headers
- Distributors stocking vehicle-specific headers for the 5.0L Small Block Ford platform
- Restoration projects needing a new header that matches the original fitment and bolt pattern
- Online sellers who need a photographed, fitment-verified part with a clean product listing
Buyers
Who It Is For
- Performance parts distributors buying Small Block Ford headers by the pallet
- Auto restoration shops installing and tuning classic Mustangs
- Truck and car accessory wholesalers serving North American muscle car owners
Construction
Technical Features
- Pair of 1.630 inch primary tubes with 2.500 inch collector diameter
- Polished stainless steel construction with mirror finish on the exterior
- Mid-steel chrome plated flange for corrosion resistance at the bolted joint
- Round port flange with 0.350 inch thickness and 1.880 inch port height
- Tight shorty design with 3.000 inch collector length for compact fitment
- Complete kit includes two gaskets, two collectors, and nuts for installation
Data
Specifications
| Material | Stainless Steel |
|---|---|
| Surface | Polished |
| Size | 1.630 inch primary tubes, 2.500 inch collector |
| Flange | Round Port, Mid-Steel Chrome Plated |
| Flange Thickness | 0.350 inch |
| Port Height | 1.880 inch |
| Port Width | 1.330 inch |
| Package | 1x Pair of Headers, 2x Gaskets, 2x Collectors, Nuts |
| Exclusion | Does not fit other engine variants or model years |
Material
Materials
- Stainless steel tube
- Mid-steel chrome plated flange
Manufacturing
How It Is Made
Tube bending to match the tight shorty routing for the 1986-1993 Mustang
TIG welding of flange to tube with double side welds for strength
Polishing to a smooth finish on the exterior surface
Final inspection against the fitment pattern before packing
Checks
Quality Control
- Flange bolt pattern and sealing face checked before welding
- Weld seams inspected for pinholes along the full joint
- Surface checked for polish defects and handling marks before packing
Private Label
Customisation Options
- Private label packaging and barcode labels on request
- Bulk cartons available for container orders instead of individual boxes
Comparison
Compared With The Alternatives
| Factory cast iron manifold | The stock manifold is heavier and restricts exhaust flow; this header improves flow and engine breathing |
|---|---|
| Mild steel aftermarket header | Mild steel is cheaper but rusts at the flange; stainless steel with chrome plating lasts longer in harsh conditions |
| Universal cut-to-fit header | A universal header requires welding and fitting; this one bolts on directly without modification |
Installation
Use Guide
- Confirm the vehicle is a 1986-1993 Ford Mustang 5.0L with the Small Block Ford 289-351W engine
- Remove the factory manifolds and clean the cylinder head flange surfaces before installing
- Use new gaskets and torque bolts evenly in a crisscross pattern to prevent warping
- Check for exhaust leaks after the first heat cycle and re-torque if needed
- Ensure the collector does not rub on the frame or suspension components during installation
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Answers
Questions About This Part
Will this fit a 1994 Mustang 5.0L?
No. The part is designed for 1986-1993 Ford Mustang 5.0L with the Small Block Ford 289-351W engine and does not cover 1994 or later models.
What size are the primary tubes and collector?
Primary tubes are 1.630 inch O.D., and the collector is 2.500 inch (2 1/2 inch) in diameter.
Is the flange already attached or do I need to weld it on?
The mid-steel chrome plated flange is already welded on. The header ships as a complete unit with no welding required.
What material is used and why does it matter?
Stainless steel with a polished finish resists rust and heat cycling better than cast iron or mild steel, especially in humid or salty environments.
What is included in the package?
One pair of headers, two gaskets, two collectors, and nuts. No installation instructions are included.
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 in my country?
We do not claim emissions compliance for this part. Check your local regulations before resale or installation.
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