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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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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
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
Summit Racing™ Pro LS Automotive Camshafts SUM-8708R1
Stage 3 Pro LS Cam 232/242 113+3, .600/.600 Lift, 3-bolt, Excellent Power and Torque, 5.3, 5.7, 6.0, 6.2, 7.0, LS1 LS2 LS6 LS3 LS7 LQ4 LQ9 LS9, Each
Part Number: SUM-8708R1
Estimated Ship Date: Today
Estimated Ship Date: Today
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: Jun 2, 2026 if ordered today
Estimated Ship Date: Jun 2, 2026 if ordered today
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: May 28, 2026 if ordered today
Estimated Ship Date: May 28, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
PAC Racing 600 Series Valve Spring Retainers PAC-R632-16
Not Yet Reviewed
Estimated Ship Date: Today
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: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
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: May 28, 2026 if ordered today
Estimated Ship Date: May 28, 2026 if ordered today
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: Today
Estimated Ship Date: Today
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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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
Estimated Ship Date: Today
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
Estimated Ship Date: Today
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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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: Jun 2, 2026 if ordered today
Estimated Ship Date: Jun 2, 2026 if ordered today
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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Stage 2 Pro LS Cam. 226/238 113+3, .600/.600 Lift, 3-bolt, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, Vortec Truck LS1 LS2 LS6 LS3 LS7 LSA LQ4 LQ9 LS9 LS4 LY6
Part Number: SUM-8707R1
Estimated Ship Date: Today
Estimated Ship Date: Today
Camshaft/Lifter Set, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift 0.479 in./0.465 in., for Gears and TC Upgrade, Small Block, Chevy, Kit
Part Number: CCA-K12-600-4
Estimated Ship Date: Today
Estimated Ship Date: Today
Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Advertised Duration 283/303, Lift .547/.530, Chevy Big Block
Part Number: CCA-K11-600-8
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Estimated Ship Date: Today
Estimated Ship Date: Today
Chevy SB, 195 cc Intake Runner, 65cc Straight-Plug Chamber, 2.02 Intake Valve, 1.6 Exhaust Valve, Hydraulic Roller Cam Max .600 Lift, Ea.
Part Number: SUM-162SBCSTRHR
Estimated Ship Date: Today
Estimated Ship Date: Today
Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift .479/.465, Chevy, Small Block, Kit
Part Number: CCA-CL12-600-4
Estimated Ship Date: Today
Estimated Ship Date: Today
