Big Bore Kits

S&S Cycle #330-0666 - 110" Power Package Performance Kit - Chain Drive - Silver

110" Power Package Performance Kit Cylinder fits to piston; no machining required TC3 cam support plate and TC3 oil pump to ensure consistent oil pressure and engine longevity Includes an S&S 4" big-bore cylinder kit with 10.5:1 pistons, S&S 585 Easy...

S&S Cycle #330-0667 - 110" Power Package Performance Kit - Gear Drive - Silver

110" Power Package Performance Kit Cylinder fits to piston; no machining required TC3 cam support plate and TC3 oil pump to ensure consistent oil pressure and engine longevity Includes an S&S 4" big-bore cylinder kit with 10.5:1 pistons, S&S 585 Easy...

S&S Cycle #330-0668 - 110" Power Package Performance Kit - Chain Drive - Black

110" Power Package Performance Kit Cylinder fits to piston; no machining required TC3 cam support plate and TC3 oil pump to ensure consistent oil pressure and engine longevity Includes an S&S 4" big-bore cylinder kit with 10.5:1 pistons, S&S 585 Easy...

S&S Cycle #330-0669 - 110" Power Package Performance Kit - Gear Drive - Black

110" Power Package Performance Kit Cylinder fits to piston; no machining required TC3 cam support plate and TC3 oil pump to ensure consistent oil pressure and engine longevity Includes an S&S 4" big-bore cylinder kit with 10.5:1 pistons, S&S 585 Easy...

S&S Cycle #900-0349 - Cylinder Heads

Super Stock™ Cylinder Heads High port flow gives great performance now, and more later when additional upgrades are done Heads are fully assembled with springs and valves Compression ratios vary depending on cylinder heads chosen, pistons used and...

S&S Cycle #900-0354 - 106" Hot Set Up® Engine Performance Kit - Black

106" Hot Set Up® Engine Performance Kit Increased fin area for better heat dissipation Increase bore size from 3.750" to 3.927" 4 3/8" stroke, 10:1 compression with stock heads Easy installation; no machining or rebalancing required Forged coated...

S&S Cycle #900-0564 - 124" Hot Set Up® Engine Performance Kit - Black

124" Hot Set Up® Engine Performance Kit The S&S Hot Set Up® kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124" using the stock crankcases Include S&S heads 91cc, 4.125” bore cylinders and forged 10.8:1 flattop pistons, S&S 4...

S&S Cycle #900-0565 - 124" Hot Set Up® Engine Performance Kit - Black

124" Hot Set Up® Engine Performance Kit The S&S Hot Setup kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124" using the stock crankcases Includes S&S heads 91cc, 4.125" bore cylinders and forged 10.8.1 flattop pistons, S&S 4...

S&S Cycle #900-0568 - 124" Hot Set Up® Engine Performance Kit - Black

124" Hot Set Up® Engine Performance Kit The S&S Hot Set Up® kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124" using the stock crankcases Include S&S heads 91cc, 4.125” bore cylinders and forged 10.8:1 flattop pistons, S&S 4...

S&S Cycle #900-0569 - 124" Hot Set Up® Engine Performance Kit - Black

124" Hot Set Up® Engine Performance Kit The S&S Hot Setup kit for Twin Cams allows a Twin Cam owner to convert a stock engine to 124" using the stock crankcases Includes S&S heads 91cc, 4.125" bore cylinders and forged 10.8.1 flattop pistons, S&S 4...

S&S Cycle #91-7660 - 96" Sidewinder® Engine Performance Kit - Natural

96" Sidewinder® Engine Performance Kit Kits include standard flywheel assembly, 3-5/8" bore cylinders, 9.75:1 pistons, rings and gaskets Does not include manifold, pushrods, or pushrod clips Made In the U.S.A. Cases must be bored to accept 3-5/8"...

S&S Cycle #91-7661 - 96" Sidewinder® Engine Performance Kit - Black

96" Sidewinder® Engine Performance Kit Kits include standard flywheel assembly, 3-5/8" bore cylinders, 9.75:1 pistons, rings and gaskets Does not include manifold, pushrods, or pushrod clips Made In the U.S.A. Cases must be bored to accept 3-5/8"...

S&S Cycle #91-9126 - 93" Sidewinder® Big Bore Stroker Engine Performance Kit

Sidewinder® Big Bore Stroker Engine Performance Kit Sidewinder Big Bore Stroker Kit Contains nearly everything needed to take a stock 74" or 80" H-D. Shovelhead engine up to 93" or 96" displacement Includes 3.625" bore high tensile, cast iron...

S&S Cycle #91-9130 - 93" Sidewinder® Big Bore Stroker Engine Performance Kit- High Compression

Sidewinder® Big Bore Stroker Engine Performance Kit Sidewinder Big Bore Stroker Kit Contains nearly everything needed to take a stock 74" or 80" H-D. Shovelhead engine up to 93" or 96" displacement Includes 3.625" bore high tensile, cast iron...

S&S Cycle #91-9134 - 96" Sidewinder® Big Bore Stroker Engine Performance Kit

Sidewinder® Big Bore Stroker Engine Performance Kit Sidewinder Big Bore Stroker Kit Contains nearly everything needed to take a stock 74" or 80" H-D. Shovelhead engine up to 93" or 96" displacement Includes 3.625" bore high tensile, cast iron...

S&S Cycle #910-0255 - Cylinders - 4.125" - Black

4-1/8" Bore Cylinder 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 Twin Cams Wrinkle black finish with machined edges Made in the U.S.A. Requires crankcase...

S&S Cycle #910-0687 - 1200cc Conversion Kit - XL883 - Wrinkle Black

1200cc Conversion Kit for XL883 Saves time because pistons already fit to the cylinders - ready to assemble out of the box Cylinders are constructed from premium aluminum castings with cast-in iron liners No machining No re-balancing of 883 cc...

S&S Cycle #910-0688 - 1200cc Conversion Kit - XL883 - Silver

1200cc Conversion Kit for XL883 Saves time because pistons already fit to the cylinders - ready to assemble out of the box Cylinders are constructed from premium aluminum castings with cast-in iron liners No machining No re-balancing of 883 cc...

S&S Cycle #910-0699 - Hooligan Engine Performance Kit -1200cc - Black

Hooligan Engine Performance Kit Bolt on big bore kits mean easy installation with no machining and no rebalancing S&S bolt-in cams and premium tappets make the most of the added displacement Cams are .482" lift and 240° duration intake and 234°...

S&S Cycle #910-0700 - Hooligan Engine Performance Kit -1200cc - Silver

Hooligan Engine Performance Kit Bolt on big bore kits mean easy installation with no machining and no rebalancing S&S bolt-in cams and premium tappets make the most of the added displacement Cams are .482" lift and 240° duration intake and 234°...

S&S Cycle #910-0701 - Hooligan Engine Performance Kit -1250cc - Black

Hooligan Engine Performance Kit Bolt on big bore kits mean easy installation with no machining and no rebalancing S&S bolt-in cams and premium tappets make the most of the added displacement Cams are .482" lift and 240° duration intake and 234°...

S&S Cycle #910-0702 - Hooligan Engine Performance Kit -1250cc - Silver

Hooligan Engine Performance Kit Bolt on big bore kits mean easy installation with no machining and no rebalancing S&S bolt-in cams and premium tappets make the most of the added displacement Cams are .482" lift and 240° duration intake and 234°...

S&S Cycle #910-0847 - 132" Big-Bore Cylinder Kit - Black Granite/Highlighted Fins - M8

Big Bore Cylinder Kit Bolt-on without requiring machining of the crankcase Original engine serial numbers are retained MLS (multi-layered steel) head gaskets Retains stock engine height Includes cam cover badge All necessary gaskets and hardware...

S&S Cycle #920-0144 - Big Bore Kit

Big Bore Kit Complete kits include cylinder sleeves, pistons and head gasket 750cc kit increase bore and stroke to 83.5mm x 67.8mm (stock is 78 mm x 67.8 mm) 865cc Increases bore and stroke to 90 mm x 67.8 mm (stock is 78 mm x 67.8 mm) Both kits...