Engine - Gaskets/Seals - Composition Head Gasket

From GM Performance - For Corvette production aluminum cylinder heads. Compressed thickness is .051 inch. This gasket's stainless steel fire rings prevent galvanic action between the aluminum head and cast iron block. (This gasket is used on 350 HO engines.) (Can be used on cast iron or aluminum heads.)

From GM Performance - This composition head gasket with stainless steel jacket is used on Chevrolet V8 302-400 CID engines with bore diameters from 4 to 4 1/8 inch. The gasket has a compressed thickness of .039 inch.

From GM Performance - This composition gasket has stainless steel on one side and graphite on the other side. This gasket has a compressed thickness of .028 inch.

From GM Performance - This composition head gasket for aluminum cylinder heads has a compressed thickness of .039 inch. It fits 4.250 inch diameter cylinder bores. LS-7 gasket. Technical Note: Do not use sealer. Retorque after engine is first run. Mark IV use only.

From GM Performance - Similar to above, for 4.440 inch cylinders. Compressed thickness is .039 inch. Technical Note: no sealer required. Retorque after engine is run for first time. Mark IV use only.