Mr. Gasket Performance Header Gaskets are manufactured from a heavy duty high-temperature material, .062 inch? thick, consisting of an acrylic binder system to resist high temperature. Provides excellent sealing and durability with maximum torque retention to eliminate gasket failure. While precision die-cut for an excellent fit, it can be trimmed if necessary for modified port applications. For original equipment replacement, higher performance street, drag race and oval track use.
Manufactured from high-temperature acrylic blend exhaust material Provides excellent sealing and durability Precision die-cut for an excellent fit Can be trimmed if necessary for modified port applications For OE replacement, high performance street, drag race and oval track use
Fits Chevrolet 396,402,427,454 Gen IV Big Blocks with Round Ports up to 1.85 x 1.90 inches.
Features- Port Height (in.):
- 1.900 in.
- Port Width (in.):
- 1.850 in.
- Thickness (in.):
- 0.062 in.
- Port Style:
- Square port
- Gasket Material:
- High-temperature white
- Quantity:
- Sold as a pair.
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Mark IV
- Engine Sizes:
- 6.5L/396-7.4L/454
- Years:
- 1966-1990
- Engine Family:
- Chevy big block Gen V
- Years:
- 1991-1995
- Engine Family:
- Chevy big block Gen VI
- Years:
- 1996-2000
- Engine Sizes:
- 7.4L/454
