# Stainless Works SBF Wide Rectangular Port Header Adapter 304SS Exhaust Flanges 1-7/8in-2in Primaries

Small Block Ford big tube wide rectangular shaped port header adapter exhaust flanges. These flanges come as a pair and are designed for 2" horizontal centerline bolt pattern SBF heads, machine work included. Includes (8) countersunk holes for bolting 3/8" diameter flat head bolts to head and (8) 3/8"-16 tapped holes to locate SBF flanges with larger port sizes for 1-7/8" or 2" diameter primaries. SBF header flanges not included, laser-cut from heavy-duty 3/8" thick carbon steel for superior resistance to warping from high heat, recommended header flanges are HFSBFTFHP188 or HFSBFTFHP200, or any other 3/8" thick Small Block Ford header flange with 2-3/4" width diagonal header bolt pattern.

## Details

- **Price:** 284.55 CAD
- **Vendor:** Stainless Works
- **Type:** Flanges

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 284.55 CAD | In stock |

## Images

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/stainless-works-sbf-wide-rectangular-port-header-adapter-304ss-exhaust-flanges-1-7-8in-2in-primaries)
> Updated: 2026-08-15