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...

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Results 1 - 25 of 982

PAC Racing 600 Series Valve Spring Retainers PAC-R632-16

Dual Spring 600 Series Retainer - Tool Steel Retainer for PAC-1530 & 1335 Dual Valve Springs. Lock angle: mi

Part Number: RSC-PAC-R632-16

Not Yet Reviewed

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Summit Racing™ Precision Cast SBF 289, 302, 351W Cylinder Head SUM-162SBF185WIN

Ford Windsor, 185 cc Int. Runner, 64cc Chamber, 2.02 Int./1.6 Exh. Hyd. Roller .600 Lift, 351W 1/2 in. head bolt, reducer sleeve needed for 289/302

Part Number: SUM-162SBF185WIN

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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PAC Racing 600 Series Valve Spring Retainers PAC-R608-16

Dual Spring 600 Series Retainer - Tool Steel Retainer for all 1.050 ID Dual Springs. Lock angle: STD 10 degre

Part Number: RSC-PAC-R608-16

Not Yet Reviewed

Estimated Ship Date: Today

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PAC Racing 600 Series Valve Spring Retainers PAC-R606-16

Dual Spring 600 Series Retainers - Tool Steel Retainer for PAC-1226 & 1326 Dual Valve Springs. Lock angle: S

Part Number: RSC-PAC-R606-16

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R643

Beehive 600 Series Retainer - Ultra Light Weight Steel for Super Stock PAC-1427 Valve Spring. Lock angle: mi

Part Number: RSC-PAC-R643

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R633

Beehive 600 Series Retainer - Ultra Light Weight Steel for Super Stock PAC-1409X Valve Spring. Lock angle: 7

Part Number: RSC-PAC-R633

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R635

Dual Spring 600 Series Retainer - Light Weight Steel Version of PAC-R335 LS RPM Dual Spring. Lock angle: LS

Part Number: RSC-PAC-R635

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R641

Valve Spring Retainers, 600 Series, Steel, 1.400 in. O.D., Dual, 8 degree, Each

Part Number: RSC-PAC-R641

Not Yet Reviewed

Estimated Ship Date: Today

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PAC Racing 600 Series Valve Spring Retainers PAC-R660

Dual Spring 600 Series Retainer - Tool Steel Pro Drag Race for PAC-1376 Valve Spring (DLC Option). Lock angle

Part Number: RSC-PAC-R660

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

PAC Racing 600 Series Valve Spring Retainers PAC-R609

Dual Spring 600 Series - Tool Steel Retainer for all 1.050 ID Dual Springs. Lock angle: STD 8 degree

Part Number: RSC-PAC-R609

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

PAC Racing 600 Series Valve Spring Retainers PAC-R632

Dual Spring 600 Series Retainer - Tool Steel Retainer for PAC-1530 & 1335 Dual Valve Springs. Lock angle: mi

Part Number: RSC-PAC-R632

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

PAC Racing 600 Series Valve Spring Retainers PAC-R644

Dual Spring 600 Series Retainer - Tool Steel Retainer for all 1.050 ID Dual Valve Springs. Lock angle: mini

Part Number: RSC-PAC-R644

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R606

Dual Spring 600 Series Retainers - Tool Steel Retainer for PAC-1226 & 1326 Dual Valve Springs. Lock angle: S

Part Number: RSC-PAC-R606

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R661

Dual Spring 600 Series Retainer - Tool Steel Pro Drag Race for PAC-1326 Valve Spring (DLC Option). Lock angle

Part Number: RSC-PAC-R661

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R614

Dual Spring 600 Series Retainer - Tool Steel Retainer for PAC-1385 & 1395 Dual Valve Springs. Lock angle: ST

Part Number: RSC-PAC-R614

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R616

Dual Spring 600 Series Retainer - Tool Steel Retainer for LS Dual Valve Springs PAC-1221 & 1521 Lock angle: L

Part Number: RSC-PAC-R616

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R619

Dual Spring 600 Series Retainers - Tool Steel Retainer for PAC-1385 & 1395 Dual Valve Springs. Lock angle: L

Part Number: RSC-PAC-R619

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R649

Beehive 600 Series Retainer - Tool Steel retainer PAC- 1200 & 1201 Valve Spring. Lock angle: STD 8 degree

Part Number: RSC-PAC-R649

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R650

Dual Spring 600 Series Retainer - Tool Steel Retainer for RPM Series Dual Valve Springs. Lock angle: mini 8

Part Number: RSC-PAC-R650

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R655

Dual Spring 600 Series Retainer - Tool Steel retainer for PAC-1222X Valve Spring. Lock angle: LS 7 degree

Part Number: RSC-PAC-R655

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R658

Dual Spring 600 Series Retainer - Tool Steel Pro Series Race for PAC-1341 Valve Spring (DLC Option). Lock ang

Part Number: RSC-PAC-R658

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R608

Dual Spring 600 Series Retainer - Tool Steel Retainer for all 1.050 ID Dual Springs. Lock angle: STD 10 degre

Part Number: RSC-PAC-R608

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

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PAC Racing 600 Series Valve Spring Retainers PAC-R608-16

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PAC Racing 600 Series Valve Spring Retainers PAC-R615

Dual Spring 600 Series Retainer - Tool Steel Retainer for PAC-1227, 1239, 1254, 1297 & 1509 Dual Valve Springs

Part Number: RSC-PAC-R615

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R643-16

Beehive 600 Series Retainer - Ultra Light Weight Steel for Super Stock PAC-1427 Valve Spring. Lock angle: mi

Part Number: RSC-PAC-R643-16

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2025 if ordered today

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Estimated Ship Date: Jun 9, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R643

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025

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PAC Racing 600 Series Valve Spring Retainers PAC-R655-16

Dual Spring 600 Series Retainer - Tool Steel retainer for PAC-1222X Valve Spring. Lock angle: LS 7 degree

Part Number: RSC-PAC-R655-16

Not Yet Reviewed

Estimated Ship Date: Jun 2, 2025 if ordered today

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Estimated Ship Date: Jun 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R655

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025

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PAC Racing 600 Series Valve Spring Retainers PAC-R635-16

Dual Spring 600 Series Retainer - Light Weight Steel Version of PAC-R335 LS RPM Dual Spring. Lock angle: LS

Part Number: RSC-PAC-R635-16

Not Yet Reviewed

Estimated Ship Date: Jun 2, 2025 if ordered today

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Estimated Ship Date: Jun 2, 2025 if ordered today

PAC Racing 600 Series Valve Spring Retainers PAC-R635

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025

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