Cometic Gasket Cometic GM LT1/LT4 Gen-II SB V8 .066in MLS Cyl Head Gskt-4.060in Bore-w/ Valve Pocketed Bores C15520-066

CG Head Gaskets

Engine Cylinder Head Gasket

The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.

GM LT1/LT4 Gen-II Small Block V8 .066 " MLS Cylinder Head Gasket, 4.060 " Bore, With Valve Pocketed Bores