Jims JIMS, 53-84 billet tappet blocks. Polished

Description

JimsJIMS, 53-84 billet tappet blocks. Polished  520033

fits  53-84 Big Twin (NU)

Polished billet aluminum. With optimized pushrod cover angles for a perfect seal. Machined to accept early cork or late style quad seals. Works with up to .550″ kift camshafts. Tappet guides can easily be modified for higher lift cams. Upgraded replacement for 18602-80A rear and 18603-80A front. Note: On 53-E76 engine cases you will need a tappet screw conversion kit threaded for the early style cases (502990 allen head or 513555 acorn), with flat style tappet screws which will fit these late (flat) style tappets

 

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