Billet Sportster Racing Tappet guide set

This is a racing version of our ZPN235812 Sportster tappet guide. This performance part is for special applications only! It has no oil grooves or pushrod tube cover bores. Designed to accommodate a lift of about .800" at valve, or about .500" lift at cam. Can be used on 1957-1985 Sportsters and Delkron or any other 4 cam Big Twin case.