Powerglide Hydraulic Tappet. Fits Big Twin 1953-1984.

Features & Benefits:-

* Run in cast iron or aluminum tappet blocks

* 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

* Includes State of the art hydraulic unit.

Tech Tips:-

* Use with AP-240030, OEM 17904-66A or JM-2400 pushrods.

* Replaces the stock hydraulic unit JM-2370 (OEM 17920-53A) and the stock style Hydraulic Tappet JM-2462-1 (OEM 185522-53A)

* Recommend tappet to block clearance .0007" - .0012"

* Sold Each.

Made in the U.S.A.