Mr. Gasket CopperSEAL header gaskets are a high quality copper gasket that performs extremely well and are reusable. We recommend this in all racing and high performance applications. They are for stock heads unless indicated, and work well in high heat and turbocharged applications.
Sold as a pair.
Features:
- Manufactured from “Dead Soft” (solid) .043" thick copper material
- .051" embossment around each exhaust port to seal irregular surfaces. Total gasket thickness .094"
- Provides excellent sealing and durability
- Conforms to and seals minor surface irregularities
- For high performance street, drag race, oval track and turbocharged (extreme heat) applications
Note: Will not fit Boss 429; Cobra Jet, or Super Cobra Jet exhaust ports.
Installation Notes:
Note: Will not fit Boss 429; Cobra Jet, or Super Cobra Jet exhaust ports.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Years |
Engine |
Fitment Notes |
| Ford |
Mustang |
1970 |
7.0L / 429 / V8 |
COPPER SEAL; EXHAUST GASKET SET; PORT DIMENSIONS W-1.25 IN. X H-2.08 IN.; |
| Mercury |
Cougar |
1973 |
7.5L / 460 / V8 |
COPPER SEAL; EXHAUST GASKET SET; PORT DIMENSIONS W-1.25 IN. X H-2.08 IN.; |
| Mercury |
Cougar |
1974 |
7.5L / 460 / V8 |
COPPER SEAL; EXHAUST GASKET SET; PORT DIMENSIONS W-1.25 IN. X H-2.08 IN.; |
| Mercury |
Cougar |
1975 |
7.5L / 460 / V8 |
COPPER SEAL; EXHAUST GASKET SET; PORT DIMENSIONS W-1.25 IN. X H-2.08 IN.; |
| Mercury |
Cougar |
1976 |
7.5L / 460 / V8 |
COPPER SEAL; EXHAUST GASKET SET; PORT DIMENSIONS W-1.25 IN. X H-2.08 IN.; |
