lcrken said:I'm more of a Commando guy than Triumph, but your question intrigues me. Wouldn't the Thruxton tappet blocks just be fitted at the same angle as the original T140 blocks? You do need longer pushrods with the shorter Thurxton tappets, but I don't think you change the angle of the tappet blocks. Maybe I just misunderstood your question. (Or maybe I just don't know much about Triumphs!).
Ken