Why are these spring seats better than standard shims for racing engines?

Standard shims can deform or fail under the extreme spring pressures and high RPMs found in racing engines. These COMP Cams spring seats are made from a hardened steel alloy, offering a more durable solution that protects the head and reliably locates the spring.

What does the 'ID locator' mean for installation?

The 'ID locator' means the locating shoulder is on the inside diameter of the seat. This design helps center the spring and fits directly into place, often requiring less cylinder head machining compared to older external cup designs.

What is the primary function of these spring seats?

Their main job is to protect the cylinder head and the shim from the intense pressure of the valve spring. They also provide a stable, centered location for the spring, which is crucial for consistent valve train operation at high speeds.

COMP Cams Spring Seats 1.450" OD Set of 100 4694-100

Name: COMP Cams Spring SeatsEb 1.450in X 1.000 - Set of 100
Brand: COMP Cams
SKU: comp-cams-comp-cams-spring-seatseb-1-450in-x-1-000-set-of-100-t14-4392275
Price: 332.71 USD
Availability: BackOrder

COMP Cams Spring SeatsEb 1.450in X 1.000 - Set of 100

$332.71

On Backorder

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

COMP Cams Spring Seats Eb 1.450in X 1.000 - Set of 100. Hardened steel alloy protects heads and locates springs in high-RPM racing engines.

Key Features

Fits 100 cylinder heads.
Made from a hardened steel alloy for durability.
Internal locator design helps keep springs centered.
Protects cylinder heads and shims from spring pressure.
Designed for high spring pressures and high RPM applications.
Each seat measures 1.450" outside diameter and .060" thick.

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Product Details

These spring seats from COMP Cams are made from a hardened steel alloy, a solid choice for engines that see serious duty. Standard shims can struggle under the high spring pressures and extreme RPMs common in today's racing engines, but these seats offer a more robust solution. They're designed to protect both the cylinder head and the shim itself, while also providing a secure location for the valve spring.

What's notable about this particular set is the internal locator design. Unlike older styles that required significant machining to fit an external cup, these feature an I.D. locator with a shoulder on the inside. This means they fit right into place, helping to keep the spring centered and stable without needing extensive head modification. The .060 inch thickness is consistent across the set, ensuring uniform performance.

This set includes 100 spring seats, giving you plenty for a full engine build. They are a well-built component for anyone assembling a performance engine where reliability under stress is key.