PAC Racing Springs Engines & Components

Valve Spring Retainers, 500 Series, Beehive, Titanium, 0.990 in. Outer Spring O.D., 7 degree Lock, Single Spring, Fits GM LS Series Valvetrains, Each

Part Number: RSC-PAC-R511

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Steel Spring Seats (0.060 Thickness)

Part Number: RSC-PAC-S112

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Steel Valve Locks - Standard 7 degree - Square Groove - +0.050 Install Height

Part Number: RSC-PAC-L8149-16

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Valve Spring, 1200 Series, Dual, 1.274 in. Outside Diameter, 550 lb/in., 0.630 in Inside Diameter, Each

Part Number: RSC-PAC-1237X

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Valve Locks, 10 degree, Square Groove-style, Machined, Steel, 1-groove, 0.344 in. Stem Diameter, Pair

Part Number: RSC-PAC-L8025

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Estimated Ship Date: Today

Titanium Valve Locks - Standard 10 degree - Square Groove - Standard Install Height

Part Number: RSC-PAC-L8005

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Valve Spring, 1200 Series Circle Track, Dual, 1.550 in. O.D., 526 lbs./in. Rate, 1.200 in. Coil Bind Height, Each

Part Number: RSC-PAC-1245

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Estimated Ship Date: Today

Steel Spring Seats (0.060 Thickness)

Part Number: RSC-PAC-S114

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Estimated Ship Date: Apr 3, 2026 if ordered today

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Valve Spring Retainers, 400 Series, Dual, Titanium, 1.300 in. O.D., 7 degree, Set of 16

Part Number: RSC-PAC-R435-16

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Valve Spring, RPM Series, Dual, 1.274 in. Outside Diameter, 600 lb/in., 0.630 in Inside Diameter, Each

Part Number: RSC-PAC-1238X

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Steel Valve Locks - Standard 10 degree - Square Groove - Standard Install Height

Part Number: RSC-PAC-L8064

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Estimated Ship Date: Apr 3, 2026 if ordered today

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Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1341 Valve Spring. Lock angle: STD 8 degree

Part Number: RSC-PAC-R557

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Estimated Ship Date: Apr 3, 2026 if ordered today

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Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1574 Dual Spring. Lock angle: STD 8

Part Number: RSC-PAC-R553

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Estimated Ship Date: Apr 3, 2026 if ordered today

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VALVE SPRING

Part Number: RSC-PAC-R378

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Estimated Ship Date: Apr 3, 2026 if ordered today

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Shims - 1.620 - 0.015 thick

Part Number: RSC-PAC-S199

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Estimated Ship Date: Apr 3, 2026 if ordered today

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VALVE LOCKS PAC STEEL

Part Number: RSC-PAC-L8143

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Estimated Ship Date: Apr 1, 2026 if ordered today

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Recessed Steel Valve Locks - Standard 10 degree - Square Groove - Standard Install Height

Part Number: RSC-PAC-LR8025

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Estimated Ship Date: Today

Valve Spring, 1200 Series Drag Race, Dual, 1.625 in. O.D., 629 lbs./in. Rate, 1.100 in. Coil Bind Height, Each

Part Number: RSC-PAC-1228

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Estimated Ship Date: Today

Steel Valve Locks - Standard 10 degree - Square Groove - +0.050 Install Height

Part Number: RSC-PAC-L8093

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Estimated Ship Date: Apr 1, 2026 if ordered today

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Steel Valve Locks - Standard 10 degree - Radius Groove - Standard Install Height

Part Number: RSC-PAC-L8080-16

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Shims - 1.620 - 0.030 thick

Part Number: RSC-PAC-S197

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Estimated Ship Date: Apr 3, 2026 if ordered today

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Dual Spring 300 Series Retainer - Retainer for PAC-1371 Valve Springs. Lock angle: mini 8 degree

Part Number: RSC-PAC-R348-16

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Estimated Ship Date: Apr 1, 2026 if ordered today

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Valve Springs, 1300 Series, Dual, 1.625 in. O.D., 629 lbs./in. Rate, 1.100 in. Coil Bind Height, Each

Part Number: RSC-PAC-1328

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Valve Spring, 1900 Series Hot Rod, Dual, 1.540 in. O.D., 431 lbs./in. Rate, 1.125 in. Coil Bind Height, Each

Part Number: RSC-PAC-1924

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Estimated Ship Date: Today

Dual Spring 300 Series Retainer - Retainer for PAC-1200 & 1201. Lock angle: STD 8

Part Number: RSC-PAC-R349

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Estimated Ship Date: Apr 7, 2026 if ordered today

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