MR. GASKET Chevy Big Block Valve Cover Gaskets '65-90
Cork-rubber gaskets use evenly sized cork particles distributed evenly throughout the rubber binder . Result is a compressible valve cover gasket without leak paths. Our gasket gaskets are 0.040`` thicker than standard valve cover gaskets. These gaskets create a positive seal by controlled swelling of the gasket material when exposed to hot engine oil....