S&S S&S, Shovel cylinder head kit. 3-5/8″ bore. Natura

Description

S&SS&S, Shovel cylinder head kit. 3-5/8″ bore. Natura  512743

fits  79-84 Big Twin with band style heads & big bore cylinders (NU)

Natural aluminum finish. Band-type style. Stock style, 3-5/8 big bore cylinder heads from S&S for 66-84 Shovelhead models. S&S heads are designed as stock replacement. Still, where stock heads flow about 124 cfm @ 10″, S&S heads do improve these figures somewhat and typically flow around 135 cfm @ 10″. Heads come assembled with valves, springs, collars, valve guide seals, rocker cover and exhaust mount hardware etc. (excl. rocker arms and covers) and complete with cylinder head, rocker cover and exhaust gaskets. These heads are ready to run and will accept camshafts with a lift of up to .590″.

 

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