What is the purpose of a valve spring shim?

A valve spring shim is used to adjust the installed height of the valve spring. This ensures the spring is preloaded correctly, which is vital for consistent valve operation and preventing valve float.

What material are these shims made from?

These shims are made from a durable material designed to withstand the pressures and temperatures found within an engine's cylinder head.

How do I know if I need a .015 inch shim?

The need for a specific shim thickness depends on your engine's specifications and the valve springs you are using. Consult your engine's service manual or the valve spring manufacturer's recommendations for the correct installed height and required shim thickness.

Specifications

Brand: Manley Performance
Part #: 03251-50
UPC: 807298043098

Manley Valve Spring Shim, SHIMS-1.437 X .015

Name: Manley Valve Spring Shim, SHIMS-1.437 X .015
Brand: Manley Performance
SKU: manley-performance-manley-valve-spring-shim-shims-1-437-x-015-t14-880179
Price: 39.42 USD
Availability: BackOrder

$39.42

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Performance valve spring shim. Use to fine-tune valve spring height for improved engine performance.

Key Features

Fits Manley valve springs requiring a .015 inch shim.
Helps achieve correct valve spring installed height.
Made from durable material for engine compartment use.
Allows for fine-tuning of valve spring preload.
Essential for proper valve train operation and performance.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

When you're rebuilding the top end of your engine, getting the valve spring installed at the correct height is crucial for proper valve train function. These valve spring shims from Manley Performance are designed to help you achieve that precise installed height. They are made from a durable material that can withstand the pressures within the cylinder head.

This particular shim measures .015 inches thick, giving you a small but important adjustment range. Using the right shim thickness ensures your valve springs are preloaded correctly, which helps prevent valve float and ensures consistent valve operation across the RPM range. It's a small part that plays a big role in the overall health and performance of your engine.