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

Eagle Competition Rotating Assemblies 128374125

ROTATING ASSEMBLY

Part Number: ESP-128374125

Not Yet Reviewed

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Eagle Competition Rotating Assemblies 129104030

Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, 6.0L LS, Kit

Part Number: ESP-129104030

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

Eagle Competition Rotating Assemblies 129464065

Engine Rotating Assembly, Competition, Forged Crank, Forged Pistons, H-Beam Rods, Chevy, 6.2L LS, Kit

Part Number: ESP-129464065

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 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: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 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: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

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: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 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: Feb 12, 2026 if ordered today

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Estimated Ship Date: Feb 12, 2026 if ordered today

Eagle Competition Rotating Assemblies 129384030

Rotating Assembly, Competition, Forged 4340 Crankshaft, Forged Flat Pistons, 1-Piece Seal, Chevy, 408, Kit

Part Number: ESP-129384030

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Namura Technologies Top-End Repair Kits NA-50011K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50011K

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Namura Technologies Top-End Repair Kits for 2002-2021 RM85, 2003-2012 RM85L - NX-30085-BK

Repair Kit, Top End, 47.950mm Bore, 9.50 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30085-BK

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Namura Technologies Top-End Repair Kits for 2008-2019 OUTLAW 50, 2007 PREDATOR 50, 2017-2025 YFZ50 - NA-50015K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50015K

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits 422-20004KH

Cylinder Kit, Forged Piston, Standard Bore, Yamaha, 11.10 to 1 Compression Ratio, Kit

Part Number: CLW-20004-K01HC

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-48517

Engine Rotating Kits, Rotating Assembly, Forged Crank, Forged Pistons, H-Beam Rods, Dodge, 427 C.I.D., Hemi Gen III, Kit

Part Number: SCA-1-48517

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-48521BI

Engine Rotating Kits, Rotating Assembly, Forged Crank, Forged Pistons, H-Beam Rods, Dodge, 426 C.I.D., Hemi Gen III, Balanced, Kit

Part Number: SCA-1-48521BI

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-48519BI

Engine Rotating Kits, Rotating Assembly, Forged Crank, Forged Pistons, H-Beam Rods, Dodge, 428 C.I.D., Hemi Gen III, Balanced, Kit

Part Number: SCA-1-48519BI

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-48525

Engine Rotating Kits, Rotating Assembly, Forged Crank, Forged Pistons, H-Beam Rods, Dodge, 428 C.I.D., Hemi Gen III, Kit

Part Number: SCA-1-48525

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Eagle Competition Rotating Assemblies 129444070

ROTATING ASSEMBLY

Part Number: ESP-129444070

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

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Estimated Ship Date: Dec 26, 2025 if ordered today

Wiseco Powersports Garage Buddy Engine Rebuild Kits for 2005-2008 TRX400EX SPORTRAX, 2009-2014 TRX400X - PWR131B-850

Engine Rebuild Kits, Powersports Garage Buddy, Wiseco 4-Stroke Forged Piston Series, Stock Size, Crankshaft, Cam Chain, for use on Honda®, Kit

Part Number: WIS-PWR131B-850

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Manley Rotating Assemblies 29402

ROTATING ASSEMBLY LS 402 FLAT

Part Number: MAN-29402

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Manley Rotating Assemblies 29415

ROTATING ASSEMBLY LS 415 FLAT

Part Number: MAN-29415

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Eagle Competition Rotating Assemblies 129504070

COMPETITION ASSEMBLY CHEV LS3

Part Number: ESP-129504070

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-48507-020

ROTATING ASSEMBLY

Part Number: SCA-1-48507-020

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1999-2005 TRX90 SPORTRAX, 2007-2008 TRX90EX SPORTRAX, 2009-2025 TRX90X - NA-10090K

TOP END REPAIR KIT

Part Number: NTI-NA-10090K

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Namura Technologies Top-End Repair Kits NA-30010-4K

Repair Kit, Top End, 82.96mm Bore, 9.00 to 1 Compression Ratio, Arctic Cat, Suzuki, Kit

Part Number: NTI-NA-30010-4K

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Eagle Heavy-Duty Rotating Assemblies 14501000

HEAVY DUTY ASSEMBLY FORD 5.0L COYOTE

Part Number: ESP-14501000

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today