PAC Racing Springs Engines & Components

Valve Spring Shims, Hardened, 1.5 in. O.D., 0.570 in. I.D., 0.015 in. Thick, Each

Part Number: RSC-PAC-S187

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Valve Spring Locator, Inside Locating Shoulder, Chromoly, 1.550 in. O.D., 0.575 in. I.D., 0.060 in. Thick, Each

Part Number: RSC-PAC-S103

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Valve Springs, Hot Rod Series, Dual, 1.545 in. O.D., 507 lbs./in. Rate, 1.130 in. Coil Bind Height, Each

Part Number: RSC-PAC-1918

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Valve Spring, 1200 Series, Dual, 1.300 in. Outside Diameter, 408 lb/in., 0.655 in. Inside Diameter, Each

Part Number: RSC-PAC-1221

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Valve Spring Locator, Inside Locating Shoulder, Chromoly, 1.500 in. O.D., 0.570 in. I.D., 0.030 in. Thick, Each

Part Number: RSC-PAC-S134

5.0 out of 5 stars ( 2 )

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Valve Locks, 8mm Stem, Single Radius Groove, -0.05 in. Installed Height, 7 Degree Lock Angle, Steel, Machined, Chevy, LS-1, Pair

Part Number: RSC-PAC-L8116

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Dual Spring 300 Series Retainer - Retainer for Marine Applications. Lock angle: STD 10 degree

Part Number: RSC-PAC-R315

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Valve Spring Retainer, 300 Series, Steel, 1.235 in. O.D., Dual, 7 degree, Each

Part Number: RSC-PAC-R316

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Dual Spring 300 Series Retainer - Retainer for PAC-1371 Valve Springs. Lock angle: STD 10 degree

Part Number: RSC-PAC-R317

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Beehive 300 Series Retainer - Retainer for Super Stock Only. Lock angle: STD 7 degree

Part Number: RSC-PAC-R333

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Beehive 300 Series Retainer - Retainer for V-Rod. Lock angle: 6 degree

Part Number: RSC-PAC-R342

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Estimated Ship Date: Nov 10, 2025 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

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

Part Number: RSC-PAC-R349

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Dual Spring 300 Series Retainer - Retainer for PAC-1222X LS Spring. Lock angle: LS 7 degree

Part Number: RSC-PAC-R355

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Estimated Ship Date: Nov 10, 2025 if ordered today

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RETAINER CHROME MOLY STEEL

Part Number: RSC-PAC-R364

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Estimated Ship Date: Nov 10, 2025 if ordered today

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RETAINER CHROME MOLY STEEL

Part Number: RSC-PAC-R373

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Steel Valve Locks - Standard 7 degree - Radius Groove - Standard Install Height

Part Number: RSC-PAC-L8152

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Estimated Ship Date: Nov 10, 2025 if ordered today

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

Part Number: RSC-PAC-L8153

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Steel Valve Locks - Standard 7 degree - Radius Groove - Standard Install Height

Part Number: RSC-PAC-L8154

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

Part Number: RSC-PAC-L8155

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Valve Spring Locator, Inside Locating Shoulder, Chromoly, 1.270 in. O.D., 0.520 in. I.D., 0.060 in. Thick, Each

Part Number: RSC-PAC-S121

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Steel Seats - for Pacaloy Retainers

Part Number: RSC-PAC-S124

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Steel Valve Locks - Mini 8 degree - Square Groove - +0.050 Install Height

Part Number: RSC-PAC-L8128

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Steel Spring Seats (0.060 Thickness)

Part Number: RSC-PAC-S130

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Steel Spring Seats (0.060 Thickness)

Part Number: RSC-PAC-S131

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