JIMS, Powerglide hydraulic tappet. Standard .731" O.D. - 53-84 B.T. (NU) P02 Laser-cut from 1/4" stainless steel

Laser-cut from 1/4" stainless steel

This leather vest with zipper and button closure is made from 1-1

Fiber material rocker cover seals

Note: This late 80-86 style is a regular round o-ring

followed-up with finer tooth paste and then seal it with grease for the best obtainable seal

JIMS, Powerglide hydraulic tappet. Standard .731" O.D. - 53-84 B.T. (NU) P02 Laser-cut from 1/4" stainless steelThe hydraulics used will work with both hydraulic and solid style camshafts. An excellent replacement hydraulic tappet for stock and high performance applications. Made to replace, and surpass 17920 53A (hydraulic unit) and 18522 53A (tappet). Note: Upgrading 66 84 Shovels to JIMS pushrods? Use the MCS 978053 JIMS Powerglide upgrade kit. JIMS Note: some 78 84 H D tappet blocks have oil drain hole location problems with some high lift cams.