Engine Components

S&S Cycle 910-0753A S&S Cycle Royal Enfield 650 Twin 865cc Cylinder Liner

S&S Cycle Royal Enfield 650 Twin 865cc Cylinder LinerRoyal Enfield 650 Twin 865cc Cylinder Liner

S&S Cycle 910-0762 S&S Cycle 2017+ M8 Models 4.250in Bore 4-5/8in Stroke Cylinder Kit - Wrinkle Black w/ Highlight

S&S Cycle 2017+ M8 Models 4.250in Bore 4-5/8in Stroke Cylinder Kit - Wrinkle Black w/ HighlightS&S has been building big bore kits since the 60s and has it down to an absolute science. Our latest efforts are aimed at the Milwaukee Eight platform...

S&S Cycle 910-0763 S&S Cycle 2007+ BT 4.250in Bore 4.840in - Wrinkle Black w/o Highlight

S&S Cycle 2007+ BT 4.250in Bore 4.840in - Wrinkle Black w/o HighlightS&S has been building big bore kits since the 60s and has it down to an absolute science. Our latest efforts are aimed at the Milwaukee Eight® platform (2017 and newer big...

S&S Cycle 910-0773 S&S Cycle 1999+ BT 4.937in 3.927in Bore Cylinder - Wrinkle Black

S&S Cycle 1999+ BT 4.937in 3.927in Bore Cylinder - Wrinkle Black1999+ BT 4.937in 3.927in Bore Cylinder

S&S Cycle 910-0774 S&S Cycle 1999+ BT 4.937in 3.937in Bore Cylinder - Wrinkle Black

S&S Cycle 1999+ BT 4.937in 3.937in Bore Cylinder - Wrinkle Black1999+ BT 4.937in 3.937in Bore Cylinder

S&S Cycle 910-0775 S&S Cycle 1999+ 4.937in 4in Bore Cylinder - Wrinkle Black

S&S Cycle 1999+ 4.937in 4in Bore Cylinder - Wrinkle Black1999+ 4.937in 4in Bore Cylinder

S&S Cycle 910-0779 S&S Cycle 1999+ BT 4.937in 3.927in Bore Cylinder - Silver

S&S Cycle 1999+ BT 4.937in 3.927in Bore Cylinder - Silver1999+ BT 4.937in 3.927in Bore Cylinder

S&S Cycle 910-0791 S&S Cycle 1999+ BT 4.937in 3.937in Bore Cylinder - Silver

S&S Cycle 1999+ BT 4.937in 3.937in Bore Cylinder - Silver1999+ BT 4.937in 3.937in Bore Cylinder

S&S Cycle 910-0792 S&S Cycle 1999+ 4.937in 4in Bore Cylinder - Silver

S&S Cycle 1999+ 4.937in 4in Bore Cylinder - Silver1999+ 4.937in 4in Bore Cylinder

S&S Cycle 910-0837 S&S Cycle 2017+ M8 Models 4.320in Bore Rear Cylinder - Wrinkle Black w/ Highlight

S&S Cycle 2017+ M8 Models 4.320in Bore Rear Cylinder - Wrinkle Black w/ Highlight2017+ M8 Models 4.320in Bore Rear Cylinder w/ Highlight

S&S Cycle 910-0842 S&S Cycle 2017+ M8 Models 4.320in Bore Rear Cylinder - Wrinkle Black w/o Highlight

S&S Cycle 2017+ M8 Models 4.320in Bore Rear Cylinder - Wrinkle Black w/o Highlight2017+ M8 Models 4.320in Bore Rear Cylinder w/o Highlight

S&S Cycle 910-0850 S&S Cycle 2017+ M8 Models 4.320in Bore 4.625in Stroke Cylinder Kit - Black Granite w/ Highlight

S&S Cycle 2017+ M8 Models 4.320in Bore 4.625in Stroke Cylinder Kit - Black Granite w/ HighlightThe biggest just got bigger! 136 cubic inches of bolt-on power in this cylinder and piston kit.Powder coat finish matches factory finish, giving the bike...

S&S Cycle 92-1063 S&S Cycle 84-99 BT 3-5/8in Piston Set - .030in

S&S Cycle 84-99 BT 3-5/8in Piston Set - .030inThese forged pistons are designed for use in S&S big bore Hot Set Up Kits for HD Evolution big twin engines, and S&S 3-5/8" bore engines with S&S Super Stock cylinder heads and...

S&S Cycle 92-1064 S&S Cycle 84-99 BT 3-5/8in Piston Set - .040in

S&S Cycle 84-99 BT 3-5/8in Piston Set - .040inThese forged pistons are designed for use in S&S big bore Hot Set Up Kits for HD Evolution big twin engines, and S&S 3-5/8" bore engines with S&S Super Stock cylinder heads and...

S&S Cycle 92-1110 S&S Cycle 84-99 BT 3 5/8in Bore Piston Kits

S&S Cycle 84-99 BT 3 5/8in Bore Piston KitsThese forged pistons are designed as an intermediate compression piston for engines with S&S Super Stock cylinder heads. These pistons can be used to increase the compression of S&S Sidewinder kits...

S&S Cycle 92-1111 S&S Cycle 84-99 BT LSF 3-5/8in Piston Set - .010in

S&S Cycle 84-99 BT LSF 3-5/8in Piston Set - .010inThese forged pistons are designed as an intermediate compression piston for engines with S&S Super Stock cylinder heads. These pistons can be used to increase the compression of S&S Sidewinder...

S&S Cycle 92-1112 S&S Cycle 84-99 BT LSF 3-5/8in Piston Set - .020in

S&S Cycle 84-99 BT LSF 3-5/8in Piston Set - .020inThese forged pistons are designed as an intermediate compression piston for engines with S&S Super Stock cylinder heads. These pistons can be used to increase the compression of S&S Sidewinder...

S&S Cycle 92-1403 S&S Cycle 84-99 BT 4in Bore Forged Pistons - .030in

S&S Cycle 84-99 BT 4in Bore Forged Pistons - .030inThese forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.

S&S Cycle 92-1413 S&S Cycle 84-99 BT 4in x 4-1/2in Piston Set - .030in

S&S Cycle 84-99 BT 4in x 4-1/2in Piston Set - .030inThese forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.

S&S Cycle 92-1421 S&S Cycle 86-03 XL 4in x 4-5/8in Piston Set - .010in

S&S Cycle 86-03 XL 4in x 4-5/8in Piston Set - .010inThese forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.

S&S Cycle 92-1422 S&S Cycle 86-03 XL 4in x 4-5/8in Piston Set - .020in

S&S Cycle 86-03 XL 4in x 4-5/8in Piston Set - .020inThese forged, 4" bore flat-topped pistons are intended for use in S&S® 4" bore Super Sidewinder® engines as well as other custom 4" bore engines.

S&S Cycle 92-1900 S&S Cycle 84-99 BT Forged 3 5/8in Bore Standard Piston Kits

S&S Cycle 84-99 BT Forged 3 5/8in Bore Standard Piston KitsThese forged, 3-5/8" big bore flat topped pistons are used in S&S® Sidewinder® kits and Hot Set Up Kits® for HD® Evolution® big twins with stock cylinder heads and 4-1/4" and...

S&S Cycle 92-1901 S&S Cycle 84-99 BT Forged 3 5/8in Bore .010in Piston Kit

S&S Cycle 84-99 BT Forged 3 5/8in Bore .010in Piston KitThese forged, 3-5/8" big bore flat topped pistons are used in S&S® Sidewinder® kits and Hot Set Up Kits® for HD® Evolution® big twins with stock cylinder heads and 4-1/4" and...

S&S Cycle 92-1902 S&S Cycle 84-99 BT Forged 3 5/8in Bore .020in Piston Kits

S&S Cycle 84-99 BT Forged 3 5/8in Bore .020in Piston KitsThese forged, 3-5/8" big bore flat topped pistons are used in S&S® Sidewinder® kits and Hot Set Up Kits® for HD® Evolution® big twins with stock cylinder heads and 4-1/4" and...