Description
Valve spring preload directly impacts cam lift, duration, and overall engine responsiveness—and even small discrepancies can cause valve float or reduce performance. The Comp Cams 1.500 O.D. Spring Shim Kit gives you precise control over spring pressure with three stackable thickness options, allowing you to dial in the exact preload your engine demands. Whether you’re fine-tuning a naturally aspirated build or managing spring rates on a high-RPM forced-induction platform, these shims are essential for maximizing cam performance and protecting your valve train.
- Shim thickness: 0.015″
- Shim thickness: 0.030″
- Shim thickness: 0.060″
- Outer diameter: 1.500″
- Quantity: 16 pieces
- Material: Steel
- Stackable design
- Bolt-on installation
- MPN: 4757CPG
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