2003 Engine Kits & Rotating Assemblies Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

Scat Modern Muscle Engine Rotating Assemblies 1-44830BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 362 Small Block, Kit

Part Number: SCA-1-44830BI

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Vertex Complete Engine Rebuild Kits for 2002-2004 KX65, 2003-2004 RM65 - WR101-049

VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-049

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

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Estimated Ship Date: Jan 6, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-40015-4K

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-40015-4K

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

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Estimated Ship Date: Jan 6, 2026 if ordered today

Eagle Competition Rotating Assemblies 14422020

COMPETITION ASSEMBLY FORD 4.6 4V

Part Number: ESP-14422020

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Namura Technologies Top-End Repair Kits NA-40011-4K

Repair Kit, Top End, 85.450mm Bore, 10.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40011-4K

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

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Estimated Ship Date: Jan 6, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44500

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 395 Small Block, Kit

Part Number: SCA-1-44500

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44502

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

Part Number: SCA-1-44502

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44504

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44504

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44603BI

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

Part Number: SCA-1-44603BI

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44400

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 395 Small Block, Kit

Part Number: SCA-1-44400

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44401BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 395 Small Block, Kit

Part Number: SCA-1-44401BI

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44402

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

Part Number: SCA-1-44402

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44402BI

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

Part Number: SCA-1-44402BI

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44403BI

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

Part Number: SCA-1-44403BI

Not Yet Reviewed

Estimated Ship Date: Feb 20, 2026 if ordered today

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Estimated Ship Date: Feb 20, 2026 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-48517BI

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

Part Number: SCA-1-48517BI

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 1-48521

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

Part Number: SCA-1-48521

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 1-48515BI

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-1-48515BI

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 1-48525BI

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-1-48525BI

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 1-48519

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

Part Number: SCA-1-48519

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 1-48523

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

Part Number: SCA-1-48523

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 1-48523BI

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

Part Number: SCA-1-48523BI

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 1985-2003 KX60 - NX-20060-CK

TOP END REPAIR KIT

Part Number: NTI-NX-20060-CK

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

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Estimated Ship Date: Tomorrow if ordered today

Vertex Complete Engine Rebuild Kits for 1999-2004 TRX400EX SPORTRAX - WR101-193

VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-193

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

Vertex Complete Engine Rebuild Kits for 1988-2006 YFS200 BLASTER - WR101-203

VERTEX COMPLETE ENGINE REBUILD KIT

Part Number: VPX-WR101-203

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

Eagle Competition Rotating Assemblies 14420020

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

Part Number: ESP-14420020

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