Availability
Big Bore Kit, 107 in., Drop-In, 3.937 in. Bore, Wrinkle Black Cylinders with Highlighted Fins, Harley-Davidson®, Kit
Part Number: SSY-910-0500
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
128" BIG BORE KIT M8 BLK
Part Number: SSY-910-0733
Not Yet Reviewed
Estimated Ship Date: Oct 10, 2025 if ordered today
Estimated Ship Date: Oct 10, 2025 if ordered today
Top End Engine Kit, Sidewinder Big Bore, Black Wrinkle Finish, 4 in., Forged Piston, Harley-Davidson®, Kit
Part Number: SSY-910-0651
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
S&S 98 BIG BORE KIT BLK
Part Number: SSY-910-0481
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
ENGINE PERFORMANCE, 124" 4-1/8" BORE, CYLNDR ST 4-1/8" BR 124"
Part Number: SSY-910-0338
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
ENGINE PERFORMANCE, 17-18 M8 MODELS, BIG BORE CYLINDER SET BLK
Part Number: SSY-910-0683
Not Yet Reviewed
Estimated Ship Date: Oct 29, 2025 if ordered today
Estimated Ship Date: Oct 29, 2025 if ordered today
PERFORMANCE, 131" KIT - BLACK FINS M8
Part Number: SSY-910-0763
Not Yet Reviewed
Estimated Ship Date: Oct 29, 2025 if ordered today
Estimated Ship Date: Oct 29, 2025 if ordered today
S&S Cycle 86-19 Sportster Models 883 to 1200cc Conversion Kit - Wrinkle Black
Part Number: SSY-910-0687
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
S&S Cycle 00-21 Sportster Models 1200cc to 1250cc Hooligan Kit - Wrinkle Black
Part Number: SSY-910-0701
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
Top End Engine Kit, M8 124 in. Big Bore, Wrinkle Black Finish with Highlighted Fins, 4.250 in., Forged Piston, Harley-Davidson®, Kit
Part Number: SSY-910-0625
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
S&S Cycle 84-99 BT w/ Stock Heads 3-1/2in Bore Cylinder & Piston Kit - Natural
Part Number: SSY-910-0179
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
S&S Cycle 00-21 Sportster Models 883cc to 1200cc Hooligan Kit - Silver
Part Number: SSY-910-0700
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
Flywheel, 07-17 TWIN CAM 06 DYNA, FLYWHEELS ASSEMBLY A MOTOR
Part Number: SSY-320-0351
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
S&S Cycle 2017+ M8 Models 4.250in Bore Unhoned Front Cylinder - Black Granite w/ Highlight
Part Number: SSY-910-0740
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
S&S Cycle 2017 M8 Models 128in CI Oil Cooled w/ Chrome Pushrod Tubes & Highlighted Fins
Part Number: SSY-310-1106A
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
S&S Cycle 2017+ M8 129in Power Pack w/ Black Pushrod Tubes & Cam Chain Tensioners - Blk w/ Highlight
Part Number: SSY-310-1225
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
S&S Cycle 2017 M8 Models 128in Oil Cooled Power Pack w/ Chrome Pushrod Tubes w/o Highlight
Part Number: SSY-310-1105B
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
HSU BLK 95" 99-03 TC TCB BT
Part Number: SSY-106-0214
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
S&S Cycle 07-17 BT 117in Big Bore Cylinder Kit - Silver
Part Number: SSY-910-0213
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
S&S Cycle 99-06 BT 4-1/8in Bore Cylinder & Piston Kit - Silver
Part Number: SSY-910-0215
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
S&S Cycle 99-06 BT 4-1/8in Bore Cylinder Kit For Early Production S&S T117 Engines - Silver
Part Number: SSY-910-0218
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
S&S Cycle 84-99 BT 84-99 BT 4 1/8in Bore Cylinder Kit For S&S V111 Engine - Natural
Part Number: SSY-910-0219
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
S&S Cycle 07-17 BT 117in Big Bore Cylinder Kit - Black Wrinkle
Part Number: SSY-910-0221
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
S&S Cycle 99-06 w/ 89cc/91cc Heads 4 1/8in Bore Cyl & Piston Kit For 124in Hot Set Up Kit - Wblack
Part Number: SSY-910-0222
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
PISTONS, PISTON/CYLINDER KIT 124
Part Number: SSY-910-0223
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.