This Cometic copper head gasket for BMC 948/1098 A Series (67.5mm bore) in .050in thickness is formed from dead soft copper that compresses readily during installation. It is suitable where steel o-rings or similar sealing arrangements exist, and the copper material helps conform load distribution while minimizing the need for sealants or re-torque and reducing bore distortion in appropriately prepared engines.
Cometic BMC 948/1098 A Series .050in Copper Cylinder Head Gasket - 67.5mm Bore