This is the Intake and Exhaust Manifold Gasket for a Triumph TR250 and TR6 1968 to 1971. This is the Intake to Exhaust Manifold Gasket for a Triumph TR250 and TR6 to Engine number CC750000) This range of gasket has a space between the intake ports of .625 of an inch. If there is a question on what gasket you have just measure between the two ports to insure you have the early style intake manifold.
