JIMS, tappet block and Powerglide tappet kit. Polished

This kit has a 3/8″ lower seat for the pushrods reducing the pushrod to tappet angle. Includes a set of two 7075-T651 polished billet tappet blocks and a set of 4 large bore Powerglide big axle tappets. The tappets are special extra wide .761″ outside diameter JIMS Powerglide tappets. Therefore OEM .731″ diameter Powerglide Shovel tappets are not interchangeable. Note: 53-E76 Pan & Shovel models will require a tappet guide bolt conversion kit like 502990 allen / 989173 Cap style / 513555 Acorn that is correctly threaded for 53-E76 crankcases so the bolt head will fit the flat L76-84 design of these JIMS tappet guides.
53-65 Panhead 66-84 Shovelhead (NU)
Sold as: EA