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: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 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: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
PERFORMANCE, 131" KIT - BLACK FINS M8
Part Number: SSY-910-0763
Not Yet Reviewed
Estimated Ship Date: Dec 31, 2025 if ordered today
Estimated Ship Date: Dec 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: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
PERFORMANCE, 131" KIT - HIGHLIGHTED FINS M8
Part Number: SSY-910-0762
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
S&S Cycle 2017 M8 Models 124in CI Oil Cooled w/ Chrome Pushrod Tubes & Highlighted Fins
Part Number: SSY-310-1053A
Not Yet Reviewed
Estimated Ship Date: Dec 11, 2025 if ordered today
Estimated Ship Date: Dec 11, 2025 if ordered today
S&S Cycle 2017 M8 Models 124in CI Oil Cooled w/ Black Pushrod Tubes & Highlighted Fins
Part Number: SSY-310-1058A
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
2017 M8 Models 128in CI Oil Cooled w/ Chrome Pushrod Tubes & Highlighted Fins
Part Number: SSY-310-1106C
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow 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
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: Dec 31, 2025 if ordered today
Estimated Ship Date: Dec 31, 2025 if ordered today
128" BIG BORE KIT M8 BLK
Part Number: SSY-910-0733
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
PERFORMANCE, 131" KIT - BLK GRANITE M8
Part Number: SSY-910-0764
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
ENGINE PERFORMANCE, M8 MODELS W/114", 128" BIG BORE KIT M8 BLK
Part Number: SSY-910-0684
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
ENGINE PERFORMANCE, M8 MODELS W/114", 128" BIG BORE KIT M8 BLK
Part Number: SSY-910-0685
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
S&S Cycle 84-99 BT w/ Stock Heads 3-5/8in Bore Cylinder Set - Natural
Part Number: SSY-91-7000
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
107" BIG BORE KIT SIL
Part Number: SSY-910-0480
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
Top End Engine Kit, M8 124 in. Big Bore, Wrinkle Black Finish, 4.250 in., Forged Piston, Harley-Davidson®, Kit
Part Number: SSY-910-0681
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
ENGINE PERFORMANCE, 17-18 M8 MODELS, BIG BORE CYLINDER SET BLK
Part Number: SSY-910-0682
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
ENGINE PERFORMANCE, 17-18 M8 MODELS, BIG BORE CYLINDER SET BLK
Part Number: SSY-910-0683
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
S&S Cycle 99-16 BT Replacement 3-7/8in Bore Cylinder & Piston Kit For S&S 106in Stroker Kit - Silver
Part Number: SSY-910-0199
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
S&S Cycle 99-16 BT Replacement 3-7/8in Bore Cylinder & Piston Kit For S&S 106in Stroker Kit - Wblack
Part Number: SSY-910-0203
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 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: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
S&S Cycle 2017+ M8 Models 4.5in Stroke 132in Big Bore Kit
Part Number: SSY-910-0845
Not Yet Reviewed
Estimated Ship Date: Dec 11, 2025 if ordered today
Estimated Ship Date: Dec 11, 2025 if ordered today
S&S Cycle 07-17 BT 117in Big Bore Cylinder Kit - Stone Gray
Part Number: SSY-910-0474
Not Yet Reviewed
Estimated Ship Date: Dec 11, 2025 if ordered today
Estimated Ship Date: Dec 11, 2025 if ordered today
S&S Cycle 84-99 BT 96in 3 5/8in Sidewinder Big Bore Cylinder & Piston Kit - Wrinkle Black
Part Number: SSY-91-7702
Not Yet Reviewed
Estimated Ship Date: Dec 11, 2025 if ordered today
Estimated Ship Date: Dec 11, 2025 if ordered today
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