Description These valves are made from 214N stainless steel for increased corrosion resistance. Fit Note: 1.19 inches is the original exhaust valve size for the 1973 GT6 Mk 3 and the TR6 after engine #CF/CR1. 1.255 inch exhaust valves may be used in later heads by enlarging the seating surface but 1.19 inch valves will not fit in earlier heads.

