S&S manufactures tappet blocks for both stock style and big bore Evolution® Big Twin engines in original-style cast finishes. Cast blocks are made from 356-T6 aluminum, in burnished aluminum finish or powder coated wrinkle black. Tappet blocks are machined to accept most cams with valve lift to .600” without modification. Supplied with mounting bolts and gaskets. Special units available to fit S&S Special Application 4”+ bore and other cases with 1/4”cam chest offset.

Weight 1 lbs
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