Powersports Top End Engine Kits Engine Kits & Rotating Assemblies Engines & Components - finned KEYWORD - Free Shipping on Orders Over $109 at Summit Racing

S&S Cycle 124 in. Big Bore Kits 910-0625

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

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

S&S Cycle 131 in. Big Bore Kits 910-0763

PERFORMANCE, 131" KIT - BLACK FINS M8

Part Number: SSY-910-0763

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle 131 in. Big Bore Kits 910-0762

PERFORMANCE, 131" KIT - HIGHLIGHTED FINS M8

Part Number: SSY-910-0762

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle 128 in. Big Bore Kits 910-0684

ENGINE PERFORMANCE, M8 MODELS W/114", 128" BIG BORE KIT M8 BLK

Part Number: SSY-910-0684

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle 128 in. Big Bore Kits 910-0685

ENGINE PERFORMANCE, M8 MODELS W/114", 128" BIG BORE KIT M8 BLK

Part Number: SSY-910-0685

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle 131 in. Big Bore Kits 910-0764

PERFORMANCE, 131" KIT - BLK GRANITE M8

Part Number: SSY-910-0764

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

S&S Cycle 124 in. Big Bore Kits 910-0681

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

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

S&S Cycle V117 Cylinder Kits 910-0225

S&S Cycle 84-99 BT 4 1/8in Bore Cylinder & Piston Kit For S&S V117 Engine - WBlack

Part Number: SSY-910-0225

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle 132 in. Big Bore Cylinder Kits 910-0847

S&S Cycle 2017+ M8 Models 4.320in Bore 4.500in Stroke Cylinder Kit - Black Granite w/ Highlight

Part Number: SSY-910-0847

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

S&S Cycle 124 in. Hot Set-Up Cylinder Kits 910-0222

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

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

S&S Cycle V124 Cylinder Kits 910-0224

S&S Cycle 84-99 BT 4 1/8in Bore Cylinder & Pistons Kit For S&S V124 Engine - Wrinkle Black

Part Number: SSY-910-0224

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

S&S Cycle 129 in. Big Bore Cylinder Kits 910-0843

S&S Cycle 2017+ M8 Models 129in Big-Bore Kit 4.375in Stroke Highlighted Cylinders

Part Number: SSY-910-0843

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle 132 in. Big Bore Cylinder Kits 910-0845

S&S Cycle 2017+ M8 Models 4.5in Stroke 132in Big Bore Kit

Part Number: SSY-910-0845

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

S&S Cycle T124 Cylinder Kits 910-0226

S&S Cycle 99-06 BT 4-1/8in Bore Cylinder & Piston Kit - Wrinkle Black

Part Number: SSY-910-0226

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle T111 Cylinder Kits 910-0277

S&S Cycle 99-06 BT 4 1/8in Bore Cylinder & Piston Kit Early Production T111 Engines - Wrinkle Black

Part Number: SSY-910-0277

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle 117 in. Big Bore Kits 910-0221

S&S Cycle 07-17 BT 117in Big Bore Cylinder Kit - Black Wrinkle

Part Number: SSY-910-0221

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle V111 Cylinder Kits 910-0359

S&S Cycle 84-99 BT 4 1/8in Bore Cylinder Kit For S&S V111 Engine - Wrinkle Black

Part Number: SSY-910-0359

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle 124 in. Hot Set-Up Cylinder Kits 910-0324

S&S Cycle 07-16 BT 124in Low Compression 4-1/8in Big Bore Kit - Wrinkle Black

Part Number: SSY-910-0324

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

S&S Cycle 111 in. Hot Set-Up Cylinder Kits 910-0025

S&S Cycle 99-06 BT Replacement 4-1/8in Bore Cylinder & Piston Kit w/ Stock Bolt Pattern

Part Number: SSY-910-0025

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Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

S&S Cycle 117 in. Big Bore Kits 910-0474

S&S Cycle 07-17 BT 117in Big Bore Cylinder Kit - Stone Gray

Part Number: SSY-910-0474

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Estimated Ship Date: Jan 2, 2026 if ordered today

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S&S Cycle 117 in. Big Bore Kits 910-0213

S&S Cycle 07-17 BT 117in Big Bore Cylinder Kit - Silver

Part Number: SSY-910-0213

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Estimated Ship Date: Jan 2, 2026 if ordered today

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