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Summit Racing SpeedCard - learn how to get 15% back up to $150

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Engines & Engine Parts

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your daily driver.

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Results 1 - 9 of 9

AFR Stage 2 Camshaft and Lifter Kits 5805

AFR Stage 2 Camshaft and Lifter Kits 5805

AFR Stage 2 Camshaft and Lifter Kits 5805

Camshaft & Morel OE Lifter Kit Small Block Stg 2

Part Number: AFR-5805

Not Yet Reviewed

Estimated Ship Date: Today

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Pro-X Racing Parts Piston Kits 01.5805.A

Pro-X Racing Parts Piston Kits 01.5805.A

Pro-X Racing Parts Piston Kits 01.5805.A

ProX Piston Kit Polaris RZR800 EFI '08-14 10.0:1 (79.95mm)

Part Number: PXR-01-5805-A

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Pro-X Racing Parts Piston Kits 01.5805.B

Pro-X Racing Parts Piston Kits 01.5805.B

Pro-X Racing Parts Piston Kits 01.5805.B

ProX Piston Kit Polaris RZR800 EFI '08-14 10.0:1 (79.96mm)

Part Number: PXR-01-5805-B

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Pro-X Racing Parts Piston Kits 01.5805.C

Pro-X Racing Parts Piston Kits 01.5805.C

Pro-X Racing Parts Piston Kits 01.5805.C

ProX Piston Kit Polaris RZR800 EFI '08-14 10.0:1 (79.97mm)

Part Number: PXR-01-5805-C

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Melling Valves V5805S

Melling Valves V5805S

Melling Valves V5805S

Exhaust Valve, VALVE-EXHAUST

Part Number: MEL-V5805S

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

King Engine Bearings Main Bearings MB5805SI0.5

King Engine Bearings Main Bearings MB5805SI0.5

King Engine Bearings Main Bearings MB5805SI0.5

Main Bearing Set, CHRYSLER ENS

Part Number: KGB-MB5805SI05

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

Pro-X Racing Parts Powersports Engine Rebuild Kits 10.EK5805.A

Pro-X Racing Parts Powersports Engine Rebuild Kits 10.EK5805.A

Pro-X Racing Parts Powersports Engine Rebuild Kits 10.EK5805.A

ProX Engine Kit Plrs. Sptsmn800HO '08-09

Part Number: PXR-10-EK5805-A

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Pro-X Racing Parts Powersports Engine Rebuild Kits 10.EK5805.A1

Pro-X Racing Parts Powersports Engine Rebuild Kits 10.EK5805.A1

Pro-X Racing Parts Powersports Engine Rebuild Kits 10.EK5805.A1

ProX Engine Kit Plrs. RZR 800 '11-14

Part Number: PXR-10-EK5805-A1

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Pro-X Racing Parts Powersports Engine Rebuild Kits 10.EK5805.B1

Pro-X Racing Parts Powersports Engine Rebuild Kits 10.EK5805.B1

Pro-X Racing Parts Powersports Engine Rebuild Kits 10.EK5805.B1

ProX Engine Kit Plrs. RZR 800 '11-14

Part Number: PXR-10-EK5805-B1

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

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