Cometic 3.0in copper header collector gasket set, .060in thickness with a 3.875in bolt circle, designed for use with manifolds or headers without sealants. These copper gaskets are intended to withstand extreme cylinder pressures, resist corrosion, remain reusable, maintain torque settings and resist burn-through or push-out between differing head and manifold materials.
Cometic 3.0in Copper Header Collector - .043in DIA Port/3.875 Bolt Circle