
Cometic's .063in copper cylinder head gasket for Triumph TR6 (1968–1971), 76mm bore, uses dead‑soft copper material that compresses during installation and is intended for engines machined for steel o‑rings. The gasket conforms load distribution across the sealing area, requires no sealants or re‑torque, and helps minimize bore distortion while meeting the expectations of high‑quality replacement head gaskets.
Cometic Triumph 1968-1971 TR6 I6 .063in Copper Cylinder Head Gasket-76mm Bore-Without Recessed Block