IMPORTANT: Triumph used two different cylinder heads, the "narrow port" for the TR5/TR250 and early TR6's up through 1973, and the "wide port" for the 1974-1976 TR6's. (See photo).
The "narrow port" head has a gap of ⅝". The "wide port" head has a ⅞" gap.
Please confirm which one you have before ordering. Over time, these heads have been swapped, changed, updated, so we want the ship you the correct kit the 1st time.
