S&S S&S, 107″ to 124″ big bore conversion cylinder & piston kit

Description

S&SS&S, 107″ to 124″ big bore conversion cylinder & piston kit  574117

fits  17-24 107″ M8

Complete bolt-on 2025cc kit. Compatible with stock 107″ engines, which have the required 4.375″ stroke. Converts the 107″ engine to 124″. Incl. black wrinkle cylinders and a forged 4.250″ bore piston & ring kit with 1.143″ deck height and -4.3 cc dish volume for an 11:1 CR with stock cylinder head combustion chamber volume. Incl. all required head & base gaskets and hardware. Provides a massive increase in capacity with bolt-on installation ease, no case boring, head work or flywheel re-balancing required. Note: Compatible with OEM head bolts but S&S advises the, 14% stronger than stock, 576972 S&S head bolt kit for all big bore applications.

 

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