What is the purpose of a valve spring seat locator?

A valve spring seat locator, like this COMP Cams ID Spring Seat, is designed to protect the cylinder head and shim from high spring pressures. It also ensures the valve spring is properly centered and held in place, which is crucial for reliable engine operation at high RPMs.

What material is this spring seat made from?

This spring seat is constructed from hardened steel alloy. This material is chosen for its durability and ability to withstand the stresses and pressures encountered in performance engine builds.

Does this spring seat require machining of the cylinder head?

No, this ID (Internal Diameter) spring seat is designed with an internal locating shoulder. This feature helps center the seat and hold the spring without requiring extensive machining of the cylinder head, unlike some older external cup designs.

COMP Cams Valve Spring Seat 4781-1 | Engine Components

Name: COMP Cams ID Spring Seat 1.55 X 570 X 7
Brand: COMP Cams
SKU: comp-cams-comp-cams-id-spring-seat-1-55-x-570-x-7-t14-4392452
Price: 11.95 USD
Availability: BackOrder

COMP Cams ID Spring Seat 1.55 X 570 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 1.55 X 570 X 7. Hardened steel seat protects heads and locates valve springs in high-RPM engines.

Key Features

Verified fitment for COMP Cams valve springs including 950, 954, 26955, 26956, 26957, 999, 26097, 929, 26115, and 933.
Made from hardened steel for improved durability and resistance to wear.
Features an internal shoulder to accurately center the seat and hold the valve spring.
Protects the cylinder head and shim from the extreme pressures of high-RPM engines.
1.550 inch outer diameter and .570 inch inner diameter.
0.060 inch thickness.

⚠️ 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

COMP Cams is a well-known name in performance valvetrain parts, and this ID Spring Seat is a prime example of their focus on engine reliability. If you're building or rebuilding an engine that will see high RPMs or use aggressive valve springs, standard shims might not hold up. This part acts as a hardened steel alloy seat that protects both the cylinder head and the shim underneath it. More importantly, it's designed to properly locate and hold the valve spring in place, preventing movement that can lead to issues under stress.

Unlike older designs that required significant machining to fit into the cylinder head, this ID locator features a shoulder on the inside. This design makes installation more straightforward. It's made from hardened steel for durability and uses that internal shoulder to center the seat and keep the spring seated correctly. The 1.550-inch outer diameter and .570-inch inner diameter are specifically chosen to work with a range of COMP Cams valve springs, including popular models like the 950, 954, and 26955 series.