2012 Engine Kits & Rotating Assemblies Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

S&S Cycle Flywheel Assemblies 320-0351

Flywheel, 07-17 TWIN CAM 06 DYNA, FLYWHEELS ASSEMBLY A MOTOR

Part Number: SSY-320-0351

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 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: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Vertex Top-End Piston Kits VTK24397B

VERTEX TOP END PISTON KIT

Part Number: VPX-VTK24397B

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Scat Modern Muscle Engine Rotating Assemblies 1-47803BI

Engine Rotating Assembly, Balanced, Forged Crank, Forged Pistons, H-Beam Rods, Ford, Modular V8, Kit

Part Number: SCA-1-47803BI

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Scat Engine Rotating Assemblies 1-47808BI

Ford 4.6L FORD 4.6L, 3V Std Wght Frgd Rot Assem Bal 3.750"5.850" Rod 3.572 Bore

Part Number: SCA-1-47808BI

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-48503

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Dodge, 378 Small Block, Kit

Part Number: SCA-1-48503

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

S&S Cycle 124 in. Hot Set-Up Cylinder Kits 910-0469

S&S Cycle 07-16 BT 124in Standard Compression 4-1/8in Big Bore Kit - Stone Gray

Part Number: SSY-910-0469

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle Twin Cam Cylinders 910-0773

1999+ BT 4.937in 3.927in Bore Cylinder - Wrinkle Black

Part Number: SSY-910-0773

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

S&S Cycle 106 in. Big Bore Hot Set-Up Kits 900-0354

PISTONS, S&S 106" BIG BORE HOT SETUP KT

Part Number: SSY-900-0354

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44306BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 415 Small Block, Kit

Part Number: SCA-1-44306BI

Not Yet Reviewed

Estimated Ship Date: May 28, 2026 if ordered today

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Estimated Ship Date: May 28, 2026 if ordered today

S&S Cycle 1250cc Conversion Cylinder Kits 910-0689

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

Part Number: SSY-910-0689

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

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: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Summit Racing™ Pro LS Piston and Rod Kits SUM-PR4008021

Pro LS 4340 Piston and Rod Kit, 417 Cid., 4.080 bore, 4.000 stroke, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings

Part Number: SUM-PR4008021

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Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Summit Racing™ Pro LS Piston and Rod Kits SUM-PR4078512

Pro LS 4340 Piston and Rod Kit, 360 Cid., 3.785 bore, 4.000 stroke, 6.125 rod, 12cc dish, 10:1 @ 61cc, 9.6:1 @ 65cc, File-Fit Rings

Part Number: SUM-PR4078512

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Summit Racing™ Pro LS Piston and Rod Kits SUM-PR4089816

Pro LS 4340 Piston and Rod Kit, 382 Cid., 3.898 bore, 4.000 stroke, 6.125 rod, 16cc dish, 9.7:1 @ 65cc, 9.4:1 @ 68cc, File-Fit Rings

Part Number: SUM-PR4089816

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Summit Racing™ Pro LS 6.2L Rotating Assemblies SUM-R244008021

Pro LS 4340 Rotating Assembly, 417 Cid., 4.080 bore, 4.000 stroke, 24X, 6.125 rod, 21cc dish, 9.9:1 @ 65cc, 9.5:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244008021

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Summit Racing™ Pro LS 5.3L Rotating Assemblies SUM-R5836L8202

Pro LS Rotating Assembly, 332 Cid., 3.820 bore, Standard 3.622 stroke, 58x, 6.125 rod, 2cc dome, 11:1 @ 61cc, 10.5:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R5836L8202

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Summit Racing™ Pro LS 6.0L Rotating Assemblies SUM-R584004020

Pro LS 4340 Rotating Assembly, 410 Cid., 4.040 bore, 4.000 stroke, 58x, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R584004020

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Eagle Pro Street Rotating Assemblies 629464070

PRO STREET ASSEMBLY CHEV LS3

Part Number: ESP-629464070

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Summit Racing™ Pro LS 6.0L Rotating Assemblies SUM-R244004020

Pro LS 4340 Rotating Assembly, 410 Cid., 4.040 bore, 4.000 stroke, 24X, 6.125 rod, 20cc dish, 9.8:1 @ 65cc, 9.4:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R244004020

Not Yet Reviewed

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

Summit Racing™ Pro LS 6.0L Rotating Assemblies SUM-R5836L0402

Pro LS Rotating Assembly, 371 Cid., 4.040 bore, 3.622 stroke, 58x, 6.125 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L0402

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Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1999-2008 TRX400EX SPORTRAX, 2009-2014 TRX400X, 1996-2004 XR400R - NA-10003-4K

Repair Kit, Top End, 85.970mm Bore, 11.00 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10003-4K

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-10014-6K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10014-6K

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-30053K

TOP END REPAIR KIT

Part Number: NTI-NA-30053K

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Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2010-2014 KX250F - NX-20017K

TOP END REPAIR KIT

Part Number: NTI-NX-20017K

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today