Cometic Cometic, cylinder base gaskets. RCS 3-5/8″ big bore (pr)

Description

Cometic Cometic, cylinder base gaskets. RCS 3-5/8″ big bore (pr)

63-65 Panhead; 66-84 Shovelhead. With 3-5/8″ big bore cylinders (NU)

Front & rear gasket for one engine. .020″ thick RCS (Rubber Coated Steel), an embossed steel core with a .001″ thick coating of heat resistant nitrile rubber on both sides.