Cometic 4.155" Bore Head Gasket 0.027" Thickness Multi-Layered Steel SB Ford SPB4 60 in Wide x 13-1/2

60 in Wide x 13-1/2 in Deep

Washable air filter elements offer better engine protec-tion and increase air flow for more power and torque

All MACH Force systems come complete with a free flowing muffler

May also be used as a blind nut on a panel with limited access

25 Outside Diameter

Cometic 4.155" Bore Head Gasket 0.027" Thickness Multi-Layered Steel SB Ford SPB4 60 in Wide x 13-1/2Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 027". Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two