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PAC Racing Springs

PAC Racing 400 Series Valve Spring Retainers

5.0 out of 5 stars 3 Customer Reviews

PAC Racing 400 Series valve spring retainers are made from the very best American Titanium 6AL4V material available to bring you great strength with less weight. In
PAC Racing 400 Series valve spring retainers are made from the very best American Titanium 6AL4V material available to bring you great strength with less weight. In order to have uniform material, PAC Racing buys mil run lots so they can define the tensile strength and seam characteristics. This version of titanium is widely used in the Aerospace industry, allowing for lower material costs compared to their 500 Series. These 400 Series retainers are robust, lightweight powerhouses able to tackle most street and off-road builds. The last thing anyone wants is a cheap part to ruin your day. For strength, uniformity, an
PAC Racing 400 Series valve spring retainers are made from the very best American Titanium 6AL4V material available to bring you great strength with less weight. In order to have uniform material, PAC Racing buys mil run lots so they can define the tensile strength and seam characteristics. This version of titanium is widely used in the Aerospace industry, allowing for lower material costs compared to their 500 Series. These 400 Series retainers are robust, lightweight powerhouses able to tackle most street and off-road builds. The last thing anyone wants is a cheap part to ruin your day. For strength, uniformity, and reliability, you need to use PAC Racing 400 Series valve spring retainers.

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PAC Racing 400 Series Valve Spring Retainers PAC-R435

PAC Racing 400 Series Valve Spring Retainers PAC-R435

PAC Racing 400 Series Valve Spring Retainers PAC-R435

Valve Spring Retainer, 400 Series, Dual, Titanium, 1.300 in. O.D., 7 degree, Each

Part Number: RSC-PAC-R435

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

PAC Racing 400 Series Valve Spring Retainers PAC-R450

PAC Racing 400 Series Valve Spring Retainers PAC-R450

PAC Racing 400 Series Valve Spring Retainers PAC-R450

Dual Spring 400 Series Retainer - Retainer for RPM Series Dual Valve Springs (mini 8 Locks). Lock angle: min

Part Number: RSC-PAC-R450

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

PAC Racing 400 Series Valve Spring Retainers PAC-R432

PAC Racing 400 Series Valve Spring Retainers PAC-R432

PAC Racing 400 Series Valve Spring Retainers PAC-R432

Valve Spring Retainer, 400 Series, Dual, Titanium, 1.284 in. O.D., 8 degree, Each

Part Number: RSC-PAC-R432

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

PAC Racing 400 Series Valve Spring Retainers PAC-R455

PAC Racing 400 Series Valve Spring Retainers PAC-R455

PAC Racing 400 Series Valve Spring Retainers PAC-R455

Dual Spring 400 Series Retainer - Titanium Retainer for PAC-1222X Valve Spring. Lock angle: LS 7 degree

Part Number: RSC-PAC-R455

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

PAC Racing 400 Series Valve Spring Retainers PAC-R404

PAC Racing 400 Series Valve Spring Retainers PAC-R404

PAC Racing 400 Series Valve Spring Retainers PAC-R404

Valve Spring Retainers, 400 Series, Tall, Titanium, 1.480 in. Outer Spring O.D., 10 degree Lock Style, Dual Springs, +0.050 in. Installed Height, Each

Part Number: RSC-PAC-R404

Not Yet Reviewed

Estimated Ship Date: Oct 28, 2025 if ordered today

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Estimated Ship Date: Oct 28, 2025 if ordered today

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PAC Racing 400 Series Valve Spring Retainers PAC-R404-16

PAC Racing 400 Series Valve Spring Retainers PAC-R404-16

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PAC Racing 400 Series Valve Spring Retainers PAC-R464

PAC Racing 400 Series Valve Spring Retainers PAC-R464

PAC Racing 400 Series Valve Spring Retainers PAC-R464

Valve Spring Retainer, 400 Series, Single, Titanium, 0.795 in. O.D., Each

Part Number: RSC-PAC-R464

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 28, 2025 if ordered today

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Estimated Ship Date: Oct 28, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

PAC Racing 400 Series Valve Spring Retainers PAC-R464-16

PAC Racing 400 Series Valve Spring Retainers PAC-R464-16

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PAC Racing 400 Series Valve Spring Retainers PAC-R405

PAC Racing 400 Series Valve Spring Retainers PAC-R405

PAC Racing 400 Series Valve Spring Retainers PAC-R405

Dual Spring 400 Series Retainer - +0.050 Sportsman Drag Race/Circle Track Retainer. Lock angle: STD 10

Part Number: RSC-PAC-R405

Not Yet Reviewed

Estimated Ship Date: Oct 28, 2025 if ordered today

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Estimated Ship Date: Oct 28, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

PAC Racing 400 Series Valve Spring Retainers PAC-R405-16

PAC Racing 400 Series Valve Spring Retainers PAC-R405-16

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PAC Racing 400 Series Valve Spring Retainers PAC-R416

PAC Racing 400 Series Valve Spring Retainers PAC-R416

PAC Racing 400 Series Valve Spring Retainers PAC-R416

Valve Spring Retainer, 400 Series, Dual, Titanium, 1.300 in. O.D., 7 degree, Each

Part Number: RSC-PAC-R416

Not Yet Reviewed

Estimated Ship Date: Oct 28, 2025 if ordered today

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Estimated Ship Date: Oct 28, 2025 if ordered today

PAC Racing 400 Series Valve Spring Retainers PAC-R439

PAC Racing 400 Series Valve Spring Retainers PAC-R439

PAC Racing 400 Series Valve Spring Retainers PAC-R439

Dual Spring 400 Series Retainers - Titanium Ford (FMOD) for PAC-1512 Valve Springs. Lock angle: 7 degree

Part Number: RSC-PAC-R439

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

PAC Racing 400 Series Valve Spring Retainers PAC-R402

PAC Racing 400 Series Valve Spring Retainers PAC-R402

PAC Racing 400 Series Valve Spring Retainers PAC-R402

Triple Spring 400 Series Retainer - +0.050 Sportman Triple Spring Drag Race Retainer. Lock angle: STD 8 degre

Part Number: RSC-PAC-R402

Not Yet Reviewed

Estimated Ship Date: Oct 28, 2025 if ordered today

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Estimated Ship Date: Oct 28, 2025 if ordered today

PAC Racing 400 Series Valve Spring Retainers PAC-R408

PAC Racing 400 Series Valve Spring Retainers PAC-R408

PAC Racing 400 Series Valve Spring Retainers PAC-R408

Dual Spring 400 Series Retainer - +0.050 Sportman Retainer for all 1.050 ID Dual Drag Springs. Lock angle: ST

Part Number: RSC-PAC-R408

Not Yet Reviewed

Estimated Ship Date: Oct 28, 2025 if ordered today

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Estimated Ship Date: Oct 28, 2025 if ordered today

PAC Racing 400 Series Valve Spring Retainers PAC-R442

PAC Racing 400 Series Valve Spring Retainers PAC-R442

PAC Racing 400 Series Valve Spring Retainers PAC-R442

Beehive 400 Series Retainer - Retainer for V-Rod. Lock angle: 6 degree

Part Number: RSC-PAC-R442

Not Yet Reviewed

Estimated Ship Date: Oct 28, 2025 if ordered today

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Estimated Ship Date: Oct 28, 2025 if ordered today

PAC Racing 400 Series Valve Spring Retainers PAC-R445

PAC Racing 400 Series Valve Spring Retainers PAC-R445

PAC Racing 400 Series Valve Spring Retainers PAC-R445

Beehive 400 Series Retainer - Retainer for V-Rod Destroyer. Lock angle: 6 degree

Part Number: RSC-PAC-R445

Not Yet Reviewed

Estimated Ship Date: Oct 28, 2025 if ordered today

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Estimated Ship Date: Oct 28, 2025 if ordered today

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