Engines & Engine Parts at Summit Racing

PAC Racing 1300 Series Drag Race Valve Springs PAC-1356

Valve Spring, 1300 Series Drag Race, Dual, 1.500 in. Outside Diameter, 780 lb/in., 0.726 in Inside Diameter, Each

Part Number: RSC-PAC-1356

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PAC Racing Valve Spring Seats and Cups PAC-S129-16

Steel Spring Seats (0.060 Thickness)

Part Number: RSC-PAC-S129-16

Not Yet Reviewed

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

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PAC Racing Valve Spring Seats and Cups PAC-S129

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BTR Platinum Valve Spring Kits SK004/S/6560

Valve Spring Kit, Platinum, Dual, Standard, Steel Retainer, 0.060 in. Thick, 462 lbs./in. Spring Rate, Factory Valve Guides, Kit

Part Number: BTC-SK004-S-6560

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

Manley NexTek Valve Spring and Retainer Kits 26382538KS

Valve Spring and Retainer, NexTek, Dual, 8mm Stem Diameter, 7 Degree Lock, 1.311 in. Spring O.D., Kit

Part Number: MAN-26382538KS

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Estimated Ship Date: May 28, 2026 if ordered today

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Estimated Ship Date: May 28, 2026 if ordered today

PAC Racing RPM Series Valve Springs PAC-1211X

Valve Spring, RPM Series, Beehive, Single, 1.290 in. O.D., 384 lbs/in. Rate, 1.100 in. Coil Bind Height, Each

Part Number: RSC-PAC-1211X

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AFR Chromoly Valve Spring Retainers 8518-1

Valve Spring Retainer, Chromoly, 10 degree Lock, 1.500 in., Dual Spring, Each

Part Number: AFR-8518-1

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Estimated Ship Date: Jun 8, 2026 if ordered today

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Estimated Ship Date: Jun 8, 2026 if ordered today

Trick Flow® Valve Spring Upgrade Kits for Ford 4.6L/5.4L 2V Engines TFS-2500526

Trick Flow® Valve Spring Upgrade Kits for Ford 4.6L/5.4L 2V Engines TFS-2500526

Twisted Wedge® Track Heat® Valve Spring Upgrade, Steel Retainers, Steel Locks, 3-Groove, Ford, 4.6L/5.4L 2V, Kit

Part Number: TFS-2500526

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PAC Racing 600 Series Valve Spring Retainers PAC-R608

Dual Spring 600 Series Retainer - Tool Steel Retainer for all 1.050 ID Dual Springs. Lock angle: STD 10 degre

Part Number: RSC-PAC-R608

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Estimated Ship Date: Jun 2, 2026 if ordered today

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Estimated Ship Date: Jun 2, 2026 if ordered today

Trick Flow® by PAC Racing Single Valve Springs TFS-16940-16

Valve Springs, PAC Racing, Single, 1.464 in. Outside Diameter, 235 lbs./in. Rate, 1.189 in. Coil Bind, Set 16

Part Number: TFS-16940-16

5.0 out of 5 stars ( 1 )

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COMP Cams Steel Valve Spring Retainers 1787-1

Valve Spring Retainer, Standard, 7 Degree, Tool Steel, 0.343 in. Valve Stem Diameter, 1.055 in. Spring Outer Diameter, Each

Part Number: CCA-1787-1

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jun 5, 2026 if ordered today

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Estimated Ship Date: Jun 5, 2026 if ordered today

BTR Valve Spring Retainers SR008-16

Valve Spring Retainers, 1.300 in. O.D. Outer Spring, 0.660 in. I.D. Inner Spring, 8mm Stem Diameter, 7 Degree Lock, Standard Spring, Set of 16

Part Number: BTC-SR008-16

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PAC Racing Valve Spring Seats and Cups PAC-S106

Steel Spring Seats (0.060 Thickness)

Part Number: RSC-PAC-S106

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Estimated Ship Date: Jun 2, 2026 if ordered today

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Estimated Ship Date: Jun 2, 2026 if ordered today

COMP Cams Valve Springs 26120-1

Valve Springs, Single, 1.445 in. Outside Diameter, 130 lbs./in. Rate, 1.230 in. Coil Bind Height, Each

Part Number: CCA-26120-1

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Melling Valve Springs 461208

Valve Springs, Dual Spring, 1.346 in Diameter, 482 Lbs/in. Spring Rate, 1.800 in Installed Height, Chevy, Each

Part Number: MEL-461208

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Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

PAC Racing 400 Series Valve Spring Retainers PAC-R436

RETAINER 64 TITANIUM

Part Number: RSC-PAC-R436

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Howards Cams Inverted Conical Valve Springs 98117

Valve Springs, Single, 1.450 in. Outside Diameter, 457 lbs./in. Rate, 1.320 in. Coil Bind Height, Set 16

Part Number: HRS-98117

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 4, 2026 if ordered today

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Estimated Ship Date: Jun 4, 2026 if ordered today

COMP Cams G2™ Valve Springs 26924-1

Valve Spring, Dual, 1.519 in. Outside Diameter, 421 lbs./in. Rate, 1.040 in. Coil Bind Height, Each

Part Number: CCA-26924-1

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Manley Valve Spring Shims 03263-1

Valve Spring Shim, Hardened, 0.645 in. I.D., 1.500 in. O.D., 0.030 in. Thick, Each

Part Number: MAN-03263-1

Not Yet Reviewed

Estimated Ship Date: May 28, 2026 if ordered today

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Estimated Ship Date: May 28, 2026 if ordered today

PAC Racing 500 Series Valve Spring Retainers PAC-R510

Valve Spring Retainers, 500 Series, Beehive, Titanium, 0.990 in. Outer Spring O.D., 10 degree Lock, Dual Springs, Each

Part Number: RSC-PAC-R510

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BTR Platinum Valve Spring Kits SK001/T/2060/BB

Valve Spring Kit, Platinum, Dual, Standard, Titanium Retainer, 0.060 in. Thick, 377 lbs./in., Dart/RHS Valve Guides, Kit

Part Number: BTC-SK001T2060BB

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Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

COMP Cams Valve Spring Locators 528-KIT

Valve Spring Locators, Spring Seat and Seal Kit for Chevy LS Series 5.3L and 6.0L, Kit

Part Number: CCA-528-KIT

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 5, 2026 if ordered today

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Estimated Ship Date: Jun 5, 2026 if ordered today

Manley Valve Spring Cups and Locators 42131-1

Valve Spring Locators, SPRING CUP-ID 1.335 FOR 221422

Part Number: MAN-42131-1

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Manley Valve Spring Cups and Locators 42333-16

Valve Spring Locators, Inside, Steel, .062 in. Thick, 1.535 in. O.D., .630 in. I.D., Set of 16

Part Number: MAN-42333-16

Not Yet Reviewed

Estimated Ship Date: May 28, 2026 if ordered today

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Estimated Ship Date: May 28, 2026 if ordered today

Trick Flow® Valve Spring Shims TFS-31500432-4

Valve Spring Shims, Steel, Hardened, 1.460 in. Outside Diameter, .060 in. Thick, Set of 4

Part Number: TFS-31500432-4

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Manley Street Master Steel Valve Spring Retainers 23651-1

Valve Spring Retainer, Steel, 7 Degree, 1.250 in. Outside Diameter, .860 in. Inside Diameter, Each

Part Number: MAN-23651-1

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