Cometic 4.200 MLS Head Gasket .051 - SBC 15-NEC-CAP-A Bolt and Spacers kits are

Bolt and Spacers kits are available separately

Adapters Fit 3/8 - 16 Threads

and you can add your own

1979-2000 GMC K2500

while outflowing the factory intake by 21%

Cometic 4.200 MLS Head Gasket .051 - SBC 15-NEC-CAP-A Bolt and Spacers kits areComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 051". With Steam Holes. 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