2004 Engine Kits & Rotating Assemblies Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ Pro LS 5.3L Rotating Assemblies SUM-R5836L8102

Pro LS Rotating Assembly, 330 Cid., 3.810 bore, Standard 3.622 stroke, 58x, 6.125 rod, 2cc dome, 11:1 @ 61cc, 10.4:1 @ 65cc, File-Fit Rings, H Bearing

Part Number: SUM-R5836L8102

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Summit Racing™ Pro LS 5.7L Rotating Assemblies SUM-R5836L8983

Pro LS 4340 Rotating Assembly, 346 Cid., 3.898 bore, 3.622 stroke, 58x, 6.125 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R5836L8983

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Summit Racing™ Pro LS 5.7L Rotating Assemblies SUM-R58368983

Pro LS 4340 Rotating Assembly, 346 Cid., 3.898 bore, 3.622 stroke, 58x, 6.098 rod, 3cc dome, 11:1 @ 65cc, 10.6:1 @ 68cc, File-Fit Rings, H Bearings

Part Number: SUM-R58368983

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Hot Rods Complete Bottom End Rebuild Kits for 2000-2005 KX65, 2003-2005 RM65 - CBK0048

Rebuild Kit, Complete Bottom End, Kawasaki, Suzuki, Kit

Part Number: HRI-CBK0048

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

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Estimated Ship Date: Apr 9, 2026 if ordered today

Manley Rotating Assemblies 28402R

KIT-LS 402 4.000/4.005 18cc DI

Part Number: MAN-28402R

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Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2001-2013 WR250F, YZ250F - 422-21002K

Big Bore Cylinder Kit, Forged Piston, 80mm Bore, Yamaha, Motorcycle, Kit

Part Number: CLW-21002-K01

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2003-2006 WR450F, 2003-2005 YZ450F - 422-20001K2

Cylinder Kit, Forged Piston, Standard Bore, Gaskets, Rings, Yamaha, Motorcycle, Kit

Part Number: CLW-20001-K02

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Cylinder Works Standard Bore Cylinder Kits for 2004-2007 CRF250R, 2004-2017 CRF250X - 422-10001KH

STD BORE KIT HI COMP

Part Number: CLW-10001-K01HC

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits for 1987-2006 YFZ350 BANSHEE - CBK0044

Gasket Kit HOT ROD COMP BOTTOM END KIT BA HOT ROD COMP BOTTOM END KIT BA NSHEE 350

Part Number: HRI-CBK0044

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2004-2009 CRF250R, 2004-2017 CRF250X - 422-11001K

Big Bore Cylinder Kit, Forged Piston, 81mm Bore, for use on Honda®, Motorcycle, Kit

Part Number: CLW-11001-K01

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits for 2003-2011 YZ250F - CBK0087

Rebuild Kit, Complete Bottom End, Yamaha, YZ250F, Kit

Part Number: HRI-CBK0087

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Cylinder Works Big Bore Cylinder Kits for 2004-2008 KX250F, 2004-2006 RMZ250 - 422-31001K

Big Bore Cylinder Kit, Forged Piston, 80mm Bore, Kawasaki, Suzuki, Motorcycle, Kit

Part Number: CLW-31001-K01

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0182

Gasket Kit COMPLETE BOTTOM END KIT COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0182

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0126

Rebuild Kit, Complete Bottom End, for use on Honda®, CRF250X, Kit

Part Number: HRI-CBK0126

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

Hot Rods Complete Bottom End Rebuild Kits CBK0097

COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0097

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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

Hot Rods Complete Bottom End Rebuild Kits CBK0086

Rebuild Kit, Complete Bottom End, for use on Honda®, CRF450R, Kit

Part Number: HRI-CBK0086

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

Namura Technologies Top-End Repair Kits for 2000-2008 65 SX, 2008 65 XC - NX-70002-6BK

TOP END REPAIR KIT

Part Number: NTI-NX-70002-6BK

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits for 2002-2004 CR250R - CBK0092

Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0092

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

Namura Technologies Top-End Repair Kits NA-50026K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50026K

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 1985-2001 YFM80 BADGER, 2005-2008 YFM80 GRIZZLY, 2002-2008 YFM80W RAPTOR - NA-40080-2K

Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40080-2K

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2004-2012 CRF70F, 1997-2003 XR70R - NX-10070-8K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-10070-8K

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2004-2005 KX250F, 2004-2006 RMZ250 - NX-20030-BK

TOP END REPAIR KIT

Part Number: NTI-NX-20030-BK

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2001-2013 KX85 - NX-20085-CK

TOP END REPAIR KIT

Part Number: NTI-NX-20085-CK

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits for 2002-2014 LT-F250 OZARK, 2004-2009 LT-Z250 QUADSPORT Z - NA-30008-4K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30008-4K

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-50070K1

Repair Kit, Top End, 79.960mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50070K1

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today