Cometic 4.300 MLS Head Gasket .040 - Pontiac 400-455 3550224-104-XXL 59% cumulative efficiency (independently tested)

59% cumulative efficiency (independently tested)

Compatible with 302 cid engines

needs EEC IV upgrade

along with an internal thread to assist when removing if necessary

739 in / 0

Cometic 4.300 MLS Head Gasket .040 - Pontiac 400-455 3550224-104-XXL 59% cumulative efficiency (independently tested)Comprised 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