Valve Locks & Keepers

A pair of valve locks (also called valve keepers) fits around the top of each valve stem, securing the spring retainer on top of the valve spring. More power means stronger...

A pair of valve locks (also called valve keepers) fits around the top of each valve stem, securing the spring retainer on top of the valve spring. More power means stronger springs, and that means the retainers and locks have to get stronger to keep up.

Stock replacement valve locks are usually made of steel and have a narrow taper. In a performance engine, they’re made from harder materials, and the taper widens (up to 10 degrees, or more!) to spread the load out. Make sure your new keepers match the seat inside the retainer and the diameter of your valve stems—you can use the search tools to the left to narrow down your...

Don’t forget your valve spring compressor to make valve lock service easier!

Top Brands

For valve locks you can rely on race after race, shop from brands you can trust here at Summit Racing Equipment. Our selection includes COMP Cams, Trick Flow, Manley, Howard’s Cams, Crane Cams, Airflow Research, Isky, and many more.

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Results 1 - 25 of 329

PAC Racing Valve Locks PAC-L8025-16

Valve Locks, 10 degree, Square Groove-style, Machined, Steel, 1-groove, 0.344 in. Stem Diameter, Set of 16 Pairs

Part Number: RSC-PAC-L8025-16

4.5 out of 5 stars ( 2 )

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PAC Racing Valve Locks PAC-L8027-16

Valve Locks, 10 degree, Square Groove-style, Machined, Steel, 1-groove, 0.342 in. Stem Diameter, Set of 16 Pairs

Part Number: RSC-PAC-L8027-16

5.0 out of 5 stars ( 1 )

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PAC Racing Valve Locks PAC-L8113

Valve Locks, Machined, Steel, 7 Degree, 1-Groove, 0.315 in. Valve Stem, Pair

Part Number: RSC-PAC-L8113

4.0 out of 5 stars ( 1 )

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PAC Racing Valve Locks PAC-L8141-16

Valve Locks, Machined, Steel, 8 Degree, 1-Groove, 0.315 in. Valve Stem, Set of 16 Pairs

Part Number: RSC-PAC-L8141-16

Not Yet Reviewed

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PAC Racing Valve Locks PAC-L8133-16

Valve Locks, 8 degree, 1-groove, Machined, Steel, 0.344 in. Stem Diameter, Set of 16 Pairs

Part Number: RSC-PAC-L8133-16

Not Yet Reviewed

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PAC Racing Valve Locks PAC-L8147-16

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

Part Number: RSC-PAC-L8147-16

Not Yet Reviewed

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PAC Racing Valve Locks PAC-L8159

Steel Valve Locks - Standard 10 degree - Radius Groove

Part Number: RSC-PAC-L8159

5.0 out of 5 stars ( 1 )

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PAC Racing Valve Locks PAC-L8116

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

Not Yet Reviewed

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PAC Racing Valve Locks PAC-L8008

Titanium Valve Locks - Standard 10 degree - Radius Groove - +0.050 Install Height

Part Number: RSC-PAC-L8008

Not Yet Reviewed

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PAC Racing Valve Locks PAC-L8114

Valve Locks, Machined, Steel, 7 Degree, 1-Groove, 0.315 in. Valve Stem, Pair

Part Number: RSC-PAC-L8114

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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PAC Racing Valve Locks PAC-L8133

Steel Valve Locks - Mini 8 degree - Square Groove - Standard Install Height

Part Number: RSC-PAC-L8133

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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PAC Racing Valve Locks PAC-L8123

Titanium Valve Locks - Mini 8 degree - Radius Groove - Standard Install Height

Part Number: RSC-PAC-L8123

Not Yet Reviewed

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PAC Racing Valve Locks PAC-L8152-16

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

Part Number: RSC-PAC-L8152-16

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

PAC Racing Valve Locks PAC-L8123-16

Titanium Valve Locks - Mini 8 degree - Radius Groove - Standard Install Height

Part Number: RSC-PAC-L8123-16

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

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PAC Racing Valve Locks PAC-L8123

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PAC Racing Valve Locks PAC-L8127-16

Steel Valve Locks - Mini 8 degree - Square Groove - Standard Install Height

Part Number: RSC-PAC-L8127-16

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

PAC Racing Valve Locks PAC-L8067-16

Valve Locks, 10 degree, 1-groove, Machined, Steel, 0.313 in. Stem Diameter, Set of 16 Pairs

Part Number: RSC-PAC-L8067-16

Not Yet Reviewed

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PAC Racing Valve Locks PAC-L8027

Valve Locks, 10 degree, Square Groove-style, Machined, Steel, 1-groove, 0.344 in. Stem Diameter, 0.050 in. Installed Height, Pair

Part Number: RSC-PAC-L8027

Not Yet Reviewed

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PAC Racing Valve Locks PAC-L8139

Valve Locks, 8 Degree, 5/16 in. Stem, Titanium, Pair

Part Number: RSC-PAC-L8139

Not Yet Reviewed

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PAC Racing Valve Locks PAC-L8134-16

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

Part Number: RSC-PAC-L8134-16

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

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PAC Racing Valve Locks PAC-L8134

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PAC Racing Valve Locks PAC-L8143-16

Valve Locks, 8 Degree, 8mm Stem, Steel, - 0.050 in. Installed Height, Set of 16 Pairs

Part Number: RSC-PAC-L8143-16

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

PAC Racing Valve Locks PAC-L8145-16

Valve Locks, 8 degree, Square Groove-style, Machined, Steel, 1-groove, 0.344 in. Stem Diameter, Set of 16 Pairs

Part Number: RSC-PAC-L8145-16

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

PAC Racing Valve Locks PAC-L8113-16

Valve Locks, 7 degree, Radius Groove-style, Machined, Steel, 1-groove, 8.00mm Stem Diameter, Set of 16 Pairs

Part Number: RSC-PAC-L8113-16

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

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PAC Racing Valve Locks PAC-L8113

4 out of 5 stars ( 1 )

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PAC Racing Valve Locks PAC-L8016

Titanium Valve Locks - Standard 8 degree - Radius Groove - Standard Install Height

Part Number: RSC-PAC-L8016

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

PAC Racing Valve Locks PAC-L8047-16

Titanium Valve Locks - Standard 10 degree - Square Groove - +0.050 Install Height

Part Number: RSC-PAC-L8047-16

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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Estimated Ship Date: Dec 4, 2025 if ordered today

PAC Racing Valve Locks PAC-LR8065

Recessed Steel Valve Locks - Standard 10 degree - Radius Groove - Standard Install Height

Part Number: RSC-PAC-LR8065

Not Yet Reviewed

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