Engine Kits & Rotating Assemblies Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

S&S Cycle 80 in. Stock Bore Cylinder Kits 910-0182

S&S Cycle 84-99 BT w/ Stock Cylinder Heads 3-1/2in Bore Cylinder & Piston Kit - Wrinkle Black

Part Number: SSY-910-0182

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Estimated Ship Date: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 if ordered today

S&S Cycle V117 Cylinder Kits 910-0290

S&S Cycle 84-99 BT 4-1/8in Bore Cylinder Set w/ Pistons For 117in V-Series Engines - Natural

Part Number: SSY-910-0290

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Estimated Ship Date: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 if ordered today

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: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 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: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 if ordered today

S&S Cycle 107 in. Big Bore Kits 910-0480

107" BIG BORE KIT SIL

Part Number: SSY-910-0480

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Estimated Ship Date: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 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: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 if ordered today

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: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 if ordered today

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: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 if ordered today

S&S Cycle 1250cc Conversion Cylinder Kits 910-0690

S&S Cycle 86-21 Sportster Models High Compression 1250cc Conversion Kit - Silver

Part Number: SSY-910-0690

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Estimated Ship Date: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 if ordered today

S&S Cycle 1200cc Cylinder Kits 910-0696

S&S Cycle 86-03 Sportster Models 1200cc Cylinder and Piston Kit - Wrinkle Black

Part Number: SSY-910-0696

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Estimated Ship Date: Sep 30, 2025 if ordered today

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Estimated Ship Date: Sep 30, 2025 if ordered today

Eagle Street Performance Rotating Assemblies with Silv-O-Lite Claimer Pistons B15404L03053

Engine Rotating Assembly, Street, Cast Crank, Hypereutectic Pistons, I-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B15404L03053

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Estimated Ship Date: Oct 14, 2025 if ordered today

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Estimated Ship Date: Oct 14, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Eagle Street and Strip Rotating Assemblies B15505L03053

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S&S Cycle 883 to 1200cc Hooligan Cylinder Kits 910-0687

S&S Cycle 86-19 Sportster Models 883 to 1200cc Conversion Kit - Wrinkle Black

Part Number: SSY-910-0687

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Eagle Street Performance Rotating Assemblies with Silv-O-Lite Claimer Pistons B15405L06053

Engine Rotating Assembly, Street, Cast Crank, Hypereutectic Pistons, I-Beam Rods, Chevy, Small Block, Kit

Part Number: ESP-B15405L06053

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Estimated Ship Date: Sep 29, 2025 if ordered today

Eagle Street and Strip Rotating Assemblies 18202030

Engine Rotating Assembly, Street/Strip, Cast Crank, Hypereutectic Pistons, I-Beam Rods, Chevy, Big Block, Kit

Part Number: ESP-18202030

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Estimated Ship Date: Sep 29, 2025 if ordered today

Eagle Specialty Products Engine Rotating Kits 13116060