* These tappets will run in cast iron or aluminum tappet blocks * Recommend fitting the tappets to the blocks with a clearance of .0007 to .0012 *
* These tappets will run in cast iron or aluminum tappet blocks* Recommend fitting the tappets to the blocks with a clearance of .0007 to .0012* Produced from billet bearing steel* A true center-line for roller life and exact cam timing* State of the art pushrod seat, machined with the same segmented parabolic cup as the JIMS roller rockers* Hand fit hydraulic unit to a running fit of .0002, with ultra-precision air-gauging system* Sold Each.* Made in the U.S.A.