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Features Cylinders are constructed from premium aluminum castings with cast-in iron liners Kits include cylinders, pistons, rings and gaskets (hea...

Features Kit includes fitted forged pistons, pins, clips, rings, cylinders, head gaskets, base, and exhaust gaskets 10.9cc dished pistons; 10.6:1 ...

Features Cylinders have a stock bolt pattern Bored slightly under nominal size and are not honed Designed for 124" Hot Set Up Kits used in '99-'17...

Features Intended to replace the cylinders and pistons of a 80" Shovelhead engine and maintain the stock compression ratio of 8:1 Compatible with ...

Features Cylinder and piston kit can be used to build 84", 86" or 88" stroker engines, or to replace the cylinders and piston in an engine with an...

Features Cylinder and piston kit can be used to build an 88" engine, or to replace the cylinders and piston in an engine with an existing S&S ...

Features Cylinder and piston kits contain S&S 3-1/2" bore (80") cylinders and forged pistons, rings, wrist pins, and head and base gaskets The...

Features Bolt in - no machining, balancing or splitting the crankcases; install can be performed with engine still in frame Cast Ductile Iron Slee...

Features Bolt in - no machining, balancing or splitting the crankcases; install can be performed with engine still in frame Cast Ductile Iron Slee...

Features Bolt in - no machining, balancing or splitting the crankcases; install can be performed with engine still in frame Cast Ductile Iron Slee...

Features Big Bore kit yields excellent results with stock cylinder heads Easy installation no need to bore or split existing cases, just swap the ...

Features Big Bore kit yields excellent results with stock cylinder heads Easy installation no need to bore or split existing cases, just swap the ...

Features 3.500" bore cylinders are for 80" or 89" big twins with stock, S&S® Performance, or Super Stock® heads Thicker castings, larger cooli...

Features Only for 88" motors Can be used to repair an existing 106" stroker engine Kit includes S&S 3-7/8" bore cylinders and forged stroker p...

Features Only for 88" motors Can be used to repair an existing 106" stroker engine Kit includes S&S 3-7/8" bore cylinders and forged stroker p...

Features Big Bore kit yields excellent results with stock cylinder heads Easy installation no need to bore or split existing cases, just swap the ...

Features Big Bore kit yields excellent results with stock cylinder heads Easy installation no need to bore or split existing cases, just swap the ...

Features Big Bore kit yields excellent results with stock cylinder heads Easy installation no need to bore or split existing cases, just swap the ...

Features Big Bore kit yields excellent results with stock cylinder heads Easy installation no need to bore or split existing cases, just swap the ...

Features Big Bore kit yields excellent results with stock cylinder heads Easy installation no need to bore or split existing cases, just swap the ...

Features Big Bore kit yields excellent results with stock cylinder heads Easy installation no need to bore or split existing cases, just swap the ...

Features Includes a 70mm S&S Throttle Hog throttle body and all components needed for installation on the 143" engine Made in the USA Note: ...

Features Includes a 70mm S&S Throttle Hog throttle body and all components needed for installation on the 143" engine Made in the USA Note: ...

Features Requires throttle body specific Stealth air cleaners (available separately) for 58 mm and 66 mm bodies Sealed, stainless steel throttle s...