Comprised of a fully annealed, 0.063" dead soft copper. Cometic Copper Head Gaskets utilize a full dead soft material, that is available in different thicknesses, and easily compresses during installation. Copper is the choice for engines that have already been machined for steel o-rings for extreme cylinder pressures.
BMC 948/1098 A Series .063in. Copper Cylinder Head Gasket; 67.5mm Bore
