Kuvaus

.600″ valve lift. 89″ and larger engines with 9.5:1 to 10.5:1CR. Good for ported heads. Used with solid or hydraulic lifters with adjustable pushrods. Spring spacing & clearance checks required. Cam lobe clearancing required in stock cases. Note: Stock 86-03 XL valve springs are okay to .510″ valve lift only.86-90 XL (NU)