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PAC Racing 500 Series Valve Spring Retainers

4.0 out of 5 stars 1 Customer Reviews

PAC Racing 500 Series valve spring retainers are every bit as reliable as retainers 20 percent heavier. These retainers are produced from the finest proprietary high-tensile titanium alloy for incredible wear and strength. PAC's engineers take this material and form the ultimate lightweight retainers. They are designed for high-rpm professional racing and abusive or severe engine applications. When you're building severe engines, you need parts designed to withstand incredible heat and rpm. PAC Racing 500 Series valve spring retainers are built to take all that you can give.

Results 1 - 25 of 44

Valve Spring Retainers, 500 Series, Dual, Titanium, 1.365 in. O.D., 10 degree, Set of 16

Part Number: RSC-PAC-R508-16

4.0 out of 5 stars ( 1 )

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Valve Spring Retainers, 500 Series, Dual, Titanium, 1.450 in. O.D., 10 degree, Set of 16

Part Number: RSC-PAC-R536-16

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Valve Spring Retainers, 500 Series, Dual, Titanium, 1.300 in. O.D., 8 degree, Set of 16

Part Number: RSC-PAC-R532-16

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Valve Spring Retainers, 500 Series, Dual, Titanium, 1.400 in. O.D., 10 degree, Set of 16

Part Number: RSC-PAC-R505-16

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Valve Spring Retainers, 500 Series, Titanium, 1.400 in. Outer Spring O.D., 10 degree Lock, Dual Springs, Each

Part Number: RSC-PAC-R506

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Beehive 500 Series Retainer - Retainer for Ford (FMOD). Lock angle: 7 degree

Part Number: RSC-PAC-R512

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Estimated Ship Date: Dec 15, 2026 if ordered today

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Estimated Ship Date: Dec 15, 2026 if ordered today

Valve Spring Retainers, 500 Series, Titanium, 1.475 in. Outer Spring O.D., 10 degree Lock, Triple Springs, Each

Part Number: RSC-PAC-R501

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Valve Spring Retainer, 500 Series, Dual, Titanium, 1.400 in. O.D., 10 degree, Each

Part Number: RSC-PAC-R505

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Triple Spring 500 Series Retainer - Titanium Retainer for Triple Drag Race Springs. Lock angle: STD 8

Part Number: RSC-PAC-R502

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Estimated Ship Date: Dec 11, 2026 if ordered today

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Estimated Ship Date: Dec 11, 2026 if ordered today

Valve Spring Retainer, 500 Series, Dual, Titanium, 1.365 in. O.D., 10 degree, Each

Part Number: RSC-PAC-R508

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Estimated Ship Date: Dec 18, 2026 if ordered today

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Estimated Ship Date: Dec 18, 2026 if ordered today

Valve Spring Retainer, 500 Series, Triple, Titanium, 1.480 in. O.D., 10 degree, Each

Part Number: RSC-PAC-R522

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Estimated Ship Date: Dec 17, 2026 if ordered today

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Estimated Ship Date: Dec 17, 2026 if ordered today

Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1385 & 1395 Dual Valve Springs. Lock angle: STD

Part Number: RSC-PAC-R519-16

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Estimated Ship Date: Dec 11, 2026 if ordered today

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Estimated Ship Date: Dec 11, 2026 if ordered today

Triple Spring 500 Series Retainer - Titanium Retainer for Triple Drag Race Springs. Lock angle: STD 10

Part Number: RSC-PAC-R501-16

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Estimated Ship Date: Dec 11, 2026 if ordered today

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Estimated Ship Date: Dec 11, 2026 if ordered today

Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1530 & 1335 Dual Valve Springs. Lock angle: mini

Part Number: RSC-PAC-R532

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Valve Spring Retainer, 500 Series, Dual, Titanium, 1.365 in. O.D., 8 degree, Each

Part Number: RSC-PAC-R509

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Triple Spring 500 Series Retainer - Titanium Retainer for Triple Drag Race Springs. Lock angle: STD 8

Part Number: RSC-PAC-R502-16

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Solid Stop Retainer - Heavy Duty Top for abusive Top Alcohol Engines. Dual Valve Spring Retainer. Features

Part Number: RSC-PAC-R524-16

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Triple Spring 500 Series Retainer - Titanium Retainer for Large OD Retainer for Large Triple Spring, for bette

Part Number: RSC-PAC-R565

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Estimated Ship Date: Dec 11, 2026 if ordered today

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Estimated Ship Date: Dec 11, 2026 if ordered today

Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1342, 1386 & 1396 Dual Valve Springs. Lock angle

Part Number: RSC-PAC-R538

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Estimated Ship Date: Dec 11, 2026 if ordered today

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Estimated Ship Date: Dec 11, 2026 if ordered today

Dual Spring 500 Series Retainer - Titanium Retainerfor PAC-1385 & 1395 Dual Valve Springs. Lock angle: STD 10

Part Number: RSC-PAC-R514

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Estimated Ship Date: Dec 11, 2026 if ordered today

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Estimated Ship Date: Dec 11, 2026 if ordered today

RETAINER Ti-17 TITANIUM

Part Number: RSC-PAC-R572

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Estimated Ship Date: Dec 15, 2026 if ordered today

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Estimated Ship Date: Dec 15, 2026 if ordered today

RETAINER Ti-17 TITANIUM

Part Number: RSC-PAC-R559

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Estimated Ship Date: Dec 16, 2026 if ordered today

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Estimated Ship Date: Dec 16, 2026 if ordered today

RETAINER Ti-17 TITANIUM

Part Number: RSC-PAC-R539

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Estimated Ship Date: Dec 17, 2026 if ordered today

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Estimated Ship Date: Dec 17, 2026 if ordered today

Dual Spring 500 Series Retainer - Titanium Retainer for LS Dual Valve Springs PAC-1221 & 1521. Lock angle: L

Part Number: RSC-PAC-R516-16

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Estimated Ship Date: Dec 17, 2026 if ordered today

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Estimated Ship Date: Dec 17, 2026 if ordered today

Dual Spring 500 Series Retainer - Titanium Retainer for LS Dual Valve Springs PAC-1221 & 1521. Lock angle: L

Part Number: RSC-PAC-R516

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Estimated Ship Date: Dec 17, 2026 if ordered today

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Estimated Ship Date: Dec 17, 2026 if ordered today