EngValve Spring Shim

These .030" thick Valve Spring Shims with 1.250" outside diameter and .814" inside diameter are used to equalize the installed height of valve springs. Made from the highest quality shim stock, these shims are heat treated to stand up to radical Cam lobes. Kits are also available.

Additional Information

Ensure the equal installed height of all of your valve springs with this 1.250" outer diameter, .030" thick, heat-treated spring shim.

Part Type

Engine Valve Spring Shim

Product Overview

*Valve Spring Shims and Kits*
• Equalize installed height of valve spring
• Engineered from the highest quality shim stock
• Heat-treated to withstand radical camshaft lobes
• Available in three different thicknesses to help achieve proper valve spring height
• Shim kits contain (16) pieces of each thickness listed

*Big Block Chevrolet Seat Spacers*
Late model Big Block Chevrolet engines are originally equipped with exhaust valve rotators. Until now, the only way to make up for the rotator was to stack .300" of shims under the spring. This was not only sloppy, but they also didn't fit well. These seat spacers offered by COMP Cams will locate the spring with an outside step so the spring cannot “walk” around on the head.

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Product Details

Product Downloads

#	Document Type	Download
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 Spring Shim, Steel, Hardened, 1.250 in. Outside Diameter, .030 in. Thick, Each

As with all other parts in the valvetrain, the area where the spring sits takes a beating. The old standard shims simply will not hold up to the extreme pressures and high rpm found in today's performance engines. COMP Cams offers this set of valve spring shims to solve this problem and eliminate failures.