Part Description
JIMS, tappet block and Powerglide tappet kit. Polished
Includes a set of two 7075-T651 polished billet tappet guides and a set of 4 superior Powerglide big axle tappets. Designed for a lift of up to .655" at the valves, leaving a clearance of .035" roller to block free play. When you require a higher lift a simple grinding modification is all that's needed. These blocks will clear most small base circle cams having a lift of .655" or more. Repl. OEM tappet guides 18622-85A, 18623-85A (black) and 18540-86A and 18542-83A (clear finish).
