Pistons - Rings - Cylinders

S&S - 95 INCH BIG BORE KIT Available in black or silver powder-coat finish. 9.7:1 compression ratio with stock heads. Made in the U.S.A. Kits include cylinders, pistons, rings and gaskets (head, base and exhaust). Big bore 3.825 inch cylinders...

S&S - 95 INCH BIG BORE KIT Available in black or silver powder-coat finish. 9.7:1 compression ratio with stock heads. Made in the U.S.A. Kits include cylinders, pistons, rings and gaskets (head, base and exhaust). Big bore 3.825 inch...

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...

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...