Cometic 3.860 MLS Head Gasket .040 - Buick V6 H76403FL Coarse thread bolts have 1"-8

Coarse thread bolts have 1"-8 outer threads while fine thread bolts are 1-1/8"-12

Helmet Tear Off Post

Extended back heatshield panel across shoulder area for added protection

Gauge kit includes 20 ft

Cometic 3.860 MLS Head Gasket .040 - Buick V6 H76403FL Coarse thread bolts have 1"-8Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". 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