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Engines & Components

Engines & Engine Parts

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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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Individual Parts

Results 1 - 25 of 99

GM GEN 5 CAMARO IDLER SHAFT

Part Number: INW-981

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Crankshaft Pulley and Bracket, Spacer, Aluminum, Natural, Chevy, 3-Bolt, Each

Part Number: PWM-981

4.75 out of 5 stars ( 4 )

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Valve Springs, Single, 1.254 in. Outside Diameter, 373 lbs./in. Rate, 1.150 in. Coil Bind Height, Set of 16

Part Number: CCA-981-16

4.68 out of 5 stars ( 25 )

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This product may not be eligible for select promotional offers

Wrist Pin Retainers, Spirolox, .981 in. Diameter, 0.072 in. Thick, Each

Part Number: UEM-PRH107-3

5.0 out of 5 stars ( 3 )

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Main Bearing Set, MERCEDES BENZ OM611.960/981/821/962/966

Part Number: KGB-MB5330XA

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

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Estimated Ship Date: Jun 29, 2026 if ordered today

Valve Springs, Single, 1.254 in. Outside Diameter, 370 lbs./in. Rate, 1.150 in. Coil Bind Height, Set of 12

Part Number: CCA-981-12

5.0 out of 5 stars ( 2 )

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This product may not be eligible for select promotional offers

Connecting Rod Bearing Set, MERCEDES BENZ OM611.960/981, OM646.821/962/9

Part Number: KGB-CR1018XA10

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

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Estimated Ship Date: Jun 29, 2026 if ordered today

Valve Spring, Single, 1.254 in. Outside Diameter, 370 lbs./in. Rate, 1.150 in. Coil Bind Height, Each

Part Number: CCA-981-1

5.0 out of 5 stars ( 1 )

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Valve Springs, Single, 1.254 in. Outside Diameter, 370 lbs./in. Rate, 1.150 in. Coil Bind Height, Set of 8

Part Number: CCA-981-8

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Main Bearings, P Series, Full Groove, .010 in. Crankshaft Undersize, Tri Metal, Ford, 351M, 351W, 400, Set of 5

Part Number: CLE-MS981P10

4.5 out of 5 stars ( 4 )

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VALVE SPRING, 1.254" OUTER W/D AMPER BULK PACK

Part Number: CCA-981-100

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Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

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H-BEAM RODS w-ARP2000 3/8" CAP SCREWS VW

Part Number: SCA-66260197

Not Yet Reviewed

Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

Main Bearings, H Series, Full Groove, Standard Size, Tri Metal, Ford, 351M, 351W, 400, Set of 5

Part Number: CLE-MS981H

2.0 out of 5 stars ( 2 )

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H-BEAM RODS w-ARP2000 3/8" CAP SCREWS 5 CYL

Part Number: SCA-65670187S

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

Connecting Rods, 4340, H-Beam, 12-Point, Cap Screw, 6.260 in. Length, Volkswagen, 4-Cylinder, 2.0L, Set of 4

Part Number: SCA-66260198

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Connecting Rods, 4340, H-Beam, 5.670 in. Length, Volkswagen, Set of 4

Part Number: SCA-65670187

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

ICON Forged Piston-Pontiac 468, Rod 6.635, Step Dish 30cc

Part Number: UEM-IC981-030

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.190 in. Bore, 4.250 in. Stroke, Dish, Pontiac, Set of 8

Part Number: UEM-IC981KTD-065

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Estimated Ship Date: May 11, 2026 if ordered today

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Main Bearings, P Series, Standard Size, Tri Metal, Ford, 351M, 351W, 400, Set of 5

Part Number: EW1-MS981P

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Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.200 in. Bore, 4.250 in. Stroke, Dish, Pontiac, Set of 8

Part Number: UEM-IC981KTD-075

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Estimated Ship Date: May 11, 2026 if ordered today

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Pistons, Premium, Forged 2618 Aluminum, 4.200 in. Bore, 4.250 in. Stroke, Dish, Pontiac, Set of 8

Part Number: UEM-IC981-075

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Engine Timing Idler Sprocket, Engine Timing Idler Sprocket

Part Number: CLO-S981

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Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Engine Timing Chain

Part Number: CLO-C981

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Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.155 in. Bore, 4.250 in. Stroke, Step Dish, Pontiac, Set of 8

Part Number: UEM-IC981KTD-030

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Pistons, Premium, Forged 2618 Aluminum, 4.195 in. Bore, 4.250 in. Stroke, Dish, Pontiac, Set of 8

Part Number: UEM-IC981-070

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today