The Remflex 3003 is a 100% graphite exhaust header gasket for Ford 302 and 351 Windsor V8 engines with square exhaust ports. It handles exhaust temperatures up to 3,000 degrees F and uses a built-in 50% crush to seal against uneven surfaces.
- Material: 100% graphite
- Heat resistant up to 3,000 degrees F
- Built-in 50% crush fills gaps and surface imperfections up to 1/16 inch
- Rebounds against the sealing surfaces, so it never needs re-torquing
- Fits: Ford 302 and 351 Windsor V8, square port
- Part number: 3003
FAQ
What engine does the 3003 gasket fit?
It fits Ford 302 and 351 Windsor V8 engines with square exhaust ports.
Do these gaskets need to be re-torqued?
No. The graphite rebounds against the sealing surfaces, so the gasket does not require re-tightening after installation.
Can it seal a warped or pitted surface?
Yes. The built-in 50% crush lets it fill gaps and surface imperfections up to 1/16 inch.

