Description & Size Guide
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).
84-99 Evo Big Twin (NU)
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