Summit Racing SpeedCard - learn how to get 10% back up to $100

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PAC Racing Springs

PAC Racing 300 Series Valve Spring Retainers

4.67 out of 5 stars 9 Customer Reviews

Expected motor life has increased greatly through the years, but anything with moving parts is susceptible to wear and will eventually need rebuilt. PAC Racing 300
Expected motor life has increased greatly through the years, but anything with moving parts is susceptible to wear and will eventually need rebuilt. PAC Racing 300 Series valve spring retainers are made from 4140 aerospace grade chromoly steel, making them an excellent choice for stock to slightly modified rebuilds. PAC does their own in-house manufacturing, allowing them to build strength into these units. They are heat-treated for solid wear characteristics and to raise the tensile strength, and for a rust-free finish, they apply black oxide coatings. Into every engine a little work must go; make certain you use th
Expected motor life has increased greatly through the years, but anything with moving parts is susceptible to wear and will eventually need rebuilt. PAC Racing 300 Series valve spring retainers are made from 4140 aerospace grade chromoly steel, making them an excellent choice for stock to slightly modified rebuilds. PAC does their own in-house manufacturing, allowing them to build strength into these units. They are heat-treated for solid wear characteristics and to raise the tensile strength, and for a rust-free finish, they apply black oxide coatings. Into every engine a little work must go; make certain you use the right parts for your stock to slightly modified build with PAC Racing 300 Series valve spring retainers.

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PAC Racing 300 Series Valve Spring Retainers PAC-R310-16

PAC Racing 300 Series Valve Spring Retainers PAC-R310-16

PAC Racing 300 Series Valve Spring Retainers PAC-R310-16

Valve Spring Retainers, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 10 degree, Set of 16

Part Number: RSC-PAC-R310-16

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R363-16

PAC Racing 300 Series Valve Spring Retainers PAC-R363-16

PAC Racing 300 Series Valve Spring Retainers PAC-R363-16

Valve Spring Retainers, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 7 degree, Set of 16

Part Number: RSC-PAC-R363-16

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R312-16

PAC Racing 300 Series Valve Spring Retainers PAC-R312-16

PAC Racing 300 Series Valve Spring Retainers PAC-R312-16

Valve Spring Retainers, 300 Series, Steel, 0.865 in. O.D., Single, Beehive, 7 degree, Set of 16

Part Number: RSC-PAC-R312-16

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R313-16

PAC Racing 300 Series Valve Spring Retainers PAC-R313-16

PAC Racing 300 Series Valve Spring Retainers PAC-R313-16

Beehive Spring Retainer 300 Series - Retainer for PAC-1255, 1295, & 1595 Valve Springs. Lock angle: STD 10 de

Part Number: RSC-PAC-R313-16

Not Yet Reviewed

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PAC Racing 300 Series Valve Spring Retainers PAC-R346

PAC Racing 300 Series Valve Spring Retainers PAC-R346

PAC Racing 300 Series Valve Spring Retainers PAC-R346

Valve Spring Retainer, 300 Series, Steel, 0.800 in. O.D., Single, Tall, Beehive, 7 degree, Each

Part Number: RSC-PAC-R346

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R335-16

PAC Racing 300 Series Valve Spring Retainers PAC-R335-16

PAC Racing 300 Series Valve Spring Retainers PAC-R335-16

Dual Spring 300 Series Retainer - Retainer for LS RPM Series Dual Valve Springs. Lock angle: LS 7 degree

Part Number: RSC-PAC-R335-16

Not Yet Reviewed

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R310

PAC Racing 300 Series Valve Spring Retainers PAC-R310

PAC Racing 300 Series Valve Spring Retainers PAC-R310

Valve Spring Retainer, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 10 degree, Each

Part Number: RSC-PAC-R310

Not Yet Reviewed

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R349-16

PAC Racing 300 Series Valve Spring Retainers PAC-R349-16

PAC Racing 300 Series Valve Spring Retainers PAC-R349-16

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

Part Number: RSC-PAC-R349-16

Not Yet Reviewed

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R391

PAC Racing 300 Series Valve Spring Retainers PAC-R391

PAC Racing 300 Series Valve Spring Retainers PAC-R391

Valve Spring Retainers, 300 Series, Steel, 1.400 in. O.D., Dual, 10 degree, Each

Part Number: RSC-PAC-R391

Not Yet Reviewed

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R311

PAC Racing 300 Series Valve Spring Retainers PAC-R311

PAC Racing 300 Series Valve Spring Retainers PAC-R311

Valve Spring Retainer, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 7 degree, Each

Part Number: RSC-PAC-R311

Not Yet Reviewed

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R355-16

PAC Racing 300 Series Valve Spring Retainers PAC-R355-16

PAC Racing 300 Series Valve Spring Retainers PAC-R355-16

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

Part Number: RSC-PAC-R355-16

Not Yet Reviewed

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R363

PAC Racing 300 Series Valve Spring Retainers PAC-R363

PAC Racing 300 Series Valve Spring Retainers PAC-R363

Valve Spring Retainer, 300 Series, Steel, 1.035 in. O.D., Single, Beehive, 7 degree, Each

Part Number: RSC-PAC-R363

Not Yet Reviewed

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R312

PAC Racing 300 Series Valve Spring Retainers PAC-R312

PAC Racing 300 Series Valve Spring Retainers PAC-R312

Valve Spring Retainer, 300 Series, Steel, 0.865 in. O.D., Single, Beehive, 7 degree, Each

Part Number: RSC-PAC-R312

Not Yet Reviewed

Estimated Ship Date: Oct 29, 2025 if ordered today

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Estimated Ship Date: Oct 29, 2025 if ordered today

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PAC Racing 300 Series Valve Spring Retainers PAC-R312-16

PAC Racing 300 Series Valve Spring Retainers PAC-R312-16

5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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PAC Racing 300 Series Valve Spring Retainers PAC-R331

PAC Racing 300 Series Valve Spring Retainers PAC-R331

PAC Racing 300 Series Valve Spring Retainers PAC-R331

Valve Spring Retainer, 300 Series, Steel, 0.800 in. O.D., Single, Beehive, 7 degree, Each

Part Number: RSC-PAC-R331

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 300 Series Valve Spring Retainers PAC-R316-16

PAC Racing 300 Series Valve Spring Retainers PAC-R316-16

PAC Racing 300 Series Valve Spring Retainers PAC-R316-16

Valve Spring Retainers, 300 Series, Steel, 1.235 in. O.D., Dual, 7 degree, Set of 16

Part Number: RSC-PAC-R316-16

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 300 Series Valve Spring Retainers PAC-R334-16

PAC Racing 300 Series Valve Spring Retainers PAC-R334-16

PAC Racing 300 Series Valve Spring Retainers PAC-R334-16

Dual Spring 300 Series Retainer - Retainer for PAC-1202 & 1203 Valve Springs. Lock angle: 7 degree

Part Number: RSC-PAC-R334-16

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 300 Series Valve Spring Retainers PAC-R342-16

PAC Racing 300 Series Valve Spring Retainers PAC-R342-16

PAC Racing 300 Series Valve Spring Retainers PAC-R342-16

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

Part Number: RSC-PAC-R342-16

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 300 Series Valve Spring Retainers PAC-R315-16

PAC Racing 300 Series Valve Spring Retainers PAC-R315-16

PAC Racing 300 Series Valve Spring Retainers PAC-R315-16

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

Part Number: RSC-PAC-R315-16

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 300 Series Valve Spring Retainers PAC-R313

PAC Racing 300 Series Valve Spring Retainers PAC-R313

PAC Racing 300 Series Valve Spring Retainers PAC-R313

Beehive Spring Retainer 300 Series - Retainer for PAC-1255, 1295, & 1595 Valve Springs. Lock angle: STD 10 de

Part Number: RSC-PAC-R313

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 300 Series Valve Spring Retainers PAC-R313-16

PAC Racing 300 Series Valve Spring Retainers PAC-R313-16

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PAC Racing 300 Series Valve Spring Retainers PAC-R334

PAC Racing 300 Series Valve Spring Retainers PAC-R334

PAC Racing 300 Series Valve Spring Retainers PAC-R334

Dual Spring 300 Series Retainer - Retainer for PAC-1202 & 1203 Valve Springs. Lock angle: 7 degree

Part Number: RSC-PAC-R334

Not Yet Reviewed

Estimated Ship Date: Oct 29, 2025 if ordered today

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Estimated Ship Date: Oct 29, 2025 if ordered today

PAC Racing 300 Series Valve Spring Retainers PAC-R382

PAC Racing 300 Series Valve Spring Retainers PAC-R382

PAC Racing 300 Series Valve Spring Retainers PAC-R382

VALVE SPRING RETAINER

Part Number: RSC-PAC-R382

Not Yet Reviewed

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PAC Racing 300 Series Valve Spring Retainers PAC-R333

PAC Racing 300 Series Valve Spring Retainers PAC-R333

PAC Racing 300 Series Valve Spring Retainers PAC-R333

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

Part Number: RSC-PAC-R333

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 300 Series Valve Spring Retainers PAC-R342

PAC Racing 300 Series Valve Spring Retainers PAC-R342

PAC Racing 300 Series Valve Spring Retainers PAC-R342

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

Part Number: RSC-PAC-R342

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 300 Series Valve Spring Retainers PAC-R349

PAC Racing 300 Series Valve Spring Retainers PAC-R349

PAC Racing 300 Series Valve Spring Retainers PAC-R349

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

Part Number: RSC-PAC-R349

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 300 Series Valve Spring Retainers PAC-R349-16

PAC Racing 300 Series Valve Spring Retainers PAC-R349-16

Not Yet Reviewed

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PAC Racing 300 Series Valve Spring Retainers PAC-R355

PAC Racing 300 Series Valve Spring Retainers PAC-R355

PAC Racing 300 Series Valve Spring Retainers PAC-R355

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

Part Number: RSC-PAC-R355

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 300 Series Valve Spring Retainers PAC-R355-16

PAC Racing 300 Series Valve Spring Retainers PAC-R355-16

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