What is the main benefit of using an ID spring locator?

An ID spring locator provides a hardened steel seat that protects your cylinder head and shim from the extreme pressures of high-performance valve springs. It also helps to center and hold the spring in place, ensuring stability at high RPMs.

What are the dimensions of this spring seat?

This ID Spring Locator has an outer diameter of 1.540 inches and an inner diameter of .640 inches. The thickness is .060 inches.

What COMP Cams valve springs are compatible with this locator?

This specific ID Spring Locator (part number 4780-1) is designed to work well with COMP Cams valve springs including the 938, 953, 927, and 929 dual valve spring models.

COMP Cams Valve Spring Seat 4780-1 | Engine Components

Name: COMP Cams ID Spring Seat 1.55 X 630 X 7
Brand: COMP Cams
SKU: comp-cams-comp-cams-id-spring-seat-1-55-x-630-x-7-t14-4392449
Price: 11.95 USD
Availability: BackOrder

COMP Cams ID Spring Seat 1.55 X 630 X 7

$11.95

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 ID Spring Seat 4780-1. Protects your head and shim while locating and holding valve springs, especially under high RPM.

Key Features

Fits COMP Cams 938, 953, 927, and 929 dual valve springs.
Made from hardened steel alloy for durability.
Features an inboard locating shoulder to center and hold the spring.
Protects the cylinder head and shim from spring pressure.
Designed for high RPM engine applications.

⚠️ 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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Product Details

If you're rebuilding the top end of an engine that's going to see high RPMs, you need to make sure your valve springs are properly seated and supported. Standard shims can flex or fail under the pressure of today's aggressive valve springs, leading to issues. COMP Cams offers a straightforward solution with these ID Spring Locators.

These locators are made from a hardened steel alloy, which means they're built to withstand the forces involved. They act as a solid seat for your valve spring, protecting both the cylinder head and the shim underneath. The unique inboard locating shoulder helps center the spring and keeps it firmly in place, preventing unwanted movement even when the engine is really working hard.

This particular locator has a 1.540-inch outer diameter and a .640-inch inner diameter, making it a good match for COMP Cams' 938, 953, 927, and 929 dual valve springs. It’s a simple part, but it plays a crucial role in ensuring your valve train stays stable and reliable at high engine speeds.