Valve Lock - Super Locks - 10 Degree - 3/8 in Valve Stem - 0.050 in Less Height - Steel - Black Oxide - Set of 16

SpringRetainerKeeper

These Steel Super Locks with .050 install height feature a lash cap recess, 10&deg

Additional Information

Super Locks: 10 Degree Angle, 3/8" Stem Size - Set of 16

Part Type

Engine Valve Spring Retainer Keeper Kit

Product Overview

Most people believe that the tang inside a valve lock holds the retainer and valve spring in place while the engine is running, but this isn't the case. The cross-section of material in the tang is not strong enough to withstand open spring loads of 1000 lbs. or more. The sole purpose of the tang is to temporarily locate the lock, retainer and spring relative to the valve until the taper of the retainer can nest around the outside surface of the lock. This creates a “collet” effect that binds the two together. The more spring force exerted on the retainer (as the valve opens), the more force applied by the “collet” effect to keep the retainer and lock in place.

With the emergence of valve sizes other than the standard 5/16", 11/32" and 3/8", it is important to make sure the valve locks match the valve size. There should always be a small gap between the two halves of the lock when they are properly positioned on the valve stem. If the two halves fit together without a gap, they are too large. If the locks fit tight to the stem and leave a gap between the middle of the lock and the O.D. of the stem, the locks are too small.

Our line of stock replacement 7° valve locks for stock engine rebuilds are recommended only for street applications with lighter valve spring loads and are stamped and hardened for superior wear resistance. Also available are machined 7° locks and titanium Super 7º Locks for some applications. They offer the same valve spring location accuracy as our Super Locksâ„¢ without the need to change to 10° retainers.

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Product Details

Product Downloads

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1.	Catalog

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Valve Locks, Machined Hardened Steel, 10 Degree, .375 in. Stem Diameter, 1-Groove, Set of 32

COMP Cams Street valve locks are stock replacement for stock engine rebuilds. They're stamped and hardened for superior wear resistance. Use these steel valve locks for street applications with standard valve spring loads. They're available in a variety of sizes, styles, and quantities.