Pistons - Rings - Cylinders

S&S - 97 INCH BIG BORE KIT Black or silver powder-coat finish. Easy installation: no need to bore or split existing cases, just swap the cylinders. Made in the U.S.A. Even though stock cylinders can be bored to fit the 3.927 inch pistons,...

S&S - 97 INCH BIG BORE KIT Black or silver powder-coat finish. Easy installation: no need to bore or split existing cases, just swap the cylinders. Made in the U.S.A. Even though stock cylinders can be bored to fit the 3.927 inch pistons, the...

S&S - XL 883 TO 1200 CONVERSION KIT Increase displacement from 883cc to 1200cc. No cylinder head modifications. No machining. Available in wrinkle black and silver powdercoat finish. Kits include cylinders, pistons, rings and gaskets (head, base and...

Provide everything you need to replace the top end of a 74" shovelhead engine S&S top end kits for shovelheads include a set of S&S Super Stock cylinder heads, a pair of S&S stock bore cylinders (37/16" for 74" and 31/2"...

Replace that worn out top end with the S&S 80" top end replacement kit This kit contains S&S 3-1/2" bore high tensile cast iron cylinders, 3-1/2" bore forged pistons, S&S Super Stock cylinder heads, and all the gaskets and...

4.250" bore Wrinkle Black w/o Highlighted Fins Compatible Vehicles Years Make Make Notes 2018-2019 Harley-Davidson Breakout FXBR 107 2023 Harley-Davidson Breakout FXBR 117 2018-2020 Harley-Davidson Breakout FXBRS...

4.250" bore Wrinkle Black w/ Highlighted Fins Compatible Vehicles Years Make Make Notes 2018-2019 Harley-Davidson Breakout FXBR 107 2023 Harley-Davidson Breakout FXBR 117 2018-2020 Harley-Davidson Breakout FXBRS...

4.250" bore Black Granite w/ Highlighted Fins Compatible Vehicles Years Make Make Notes 2018-2019 Harley-Davidson Breakout FXBR 107 2023 Harley-Davidson Breakout FXBR 117 2018-2020 Harley-Davidson Breakout FXBRS...

Black w/ Highlighted Fins Bolt-on Stock bolt pattern Updated cylinder profile Bored slightly under nominal size and are not honed Made in the USA Not for CVO 121" engines. Compatible...

Black w/o Highlighted Fins Bolt-on Stock bolt pattern Updated cylinder profile Bored slightly under nominal size and are not honed Made in the USA Not for CVO 121" engines. Compatible...

Black Granite w/ Highlighted Fins Bolt-on Stock bolt pattern Updated cylinder profile Bored slightly under nominal size and are not honed Made in the USA Not for CVO 121" engines. Compatible...

Studs Kit includes 8 studs with rounded thread roots, rather than flat, improving fatigue strength. 4140 Chrome Moly studs, oil quenched and tempered to 39-44 HRC. Positive stop shoulder allows for consistent installed height. 180,000 psi tensile...