Triumph Unit 500 Lightweight Racing valve spring kit
This KIBBLEWHITE LIGHTWEIGHT RACING SPRING KIT IS FOR THE TRIUMPH Unit construction 500. THESE HIGH QUALITY SPRINGS ARE WOUND WITH SUPER CLEAN CHROME SILICON WIRE THAT IS HEAT TREATED AND SHOT PEENED. THIS KIT IS COMPRISED OF 4 TITANIUM RETAINERS, 4 INNER AND 4 OUTER SPRINGS AND 4 HEAT TREATED LOWER COLLARS. Keepers are not included but this kit uses stock Triumph keepers. THIS KIT SPECIFIES 72# SEAT PRESSURE AT 1.200" INSTALLED HEIGHT AND IS GOOD UP TO .455" VALVE LIFT WITHOUT COIL BIND. DEPENDING ON YOUR INSTALLATION HEIGHT SEAT PRESSURE WILL VARY. Don't take chances with unknown "UK" spring manufacturers, your valve springs are a very important part of your engine. This is the best spring kit available for the unit 500 engine.