Engines and Components› Camshafts and Valvetrain

COMP Cams

COMP Cams ID Spring Seats Eb 1.550 X 57 - Set of 100

$307.95

SKU: C007 4781-100

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In Stock
Ships by Aug 7
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 4781-100

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today. COMP Cams offers a simple but effective solution to this problem - a thin, hardened steel alloy seat which will not only protect the head and shim but also locate and hold the spring in place. Previously, this part has been available only in a cup form with the retaining portion being on the outside of the part. This required that the head be machined a great deal to accept this cup so COMP now offers an I.D. locator with the locating shoulder on the inside, as well as the spring cup. Many sizes are available to locate from the inside or outside diameter.

4781-100 - ID Spring Seats, EB 1.550 X 57 0 X 715

MIA's Description

The COMP Cams 4781-100 Valve Spring Locators are thin, hardened steel alloy seats designed to protect the cylinder head and shims while accurately locating and holding valve springs in place. These locators are a crucial component for high-performance racing engines that experience extreme spring pressures and high RPMs, where older style standard shims may fail. This particular set comes as ID locators with the locating shoulder on the inside, which often allows for installation without the need for extensive machine work on the cylinder head. They provide a simple yet effective solution for proper valve spring setup.

Fitment

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Specifications

BrandCOMP Cams
Part NumberC007 4781-100

Videos

COMP Cams® Quick Tech: Valve Spring Seat & Valve Guide Cutting Tools

COMP Cams® Quick Tech: Valve Spring Seat & Valve Guide Cutting Tools
Quick Tech: Proper Valve Spring Set Up

Quick Tech: Proper Valve Spring Set Up

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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