Triumph Unit 500 Lightweight "Racing" valve spring kit With Keepers:YES (add $33.30) both 650 and 750 models

both 650 and 750 models with an oil feed to the tappet block

4 Viton pushrod tube O Rings   ( 71-1283 or E11283 )

57-3988 (PT108B) CLUTCH PUSHROD BUSHING x1

and will work with stock Triumph 500

Triumph Unit 500 Lightweight "Racing" valve spring kit With Keepers:YES (add $33.30) both 650 and 750 modelsThis is the best spring kit in the world for the Unit 500 head, early or late. No matter what camshafts you are running, stock, hot rod, or wild racing cams, this spring kit will work for you. These high quality springs are wound with super clean chrome silicon wire that is then heat treated and shot peened. The ultra light titanium retainers reduce reciprocating weight and the base washers are specifically engineered for this kit. Included are 4