What is the main benefit of using these spring seat cups over standard shims?

These COMP Cams spring seat cups are made from hardened steel alloy, offering superior durability compared to standard shims under extreme spring pressures and high RPMs. They also protect the cylinder head and shim while precisely locating the valve spring.

What does the 'I.D. locator' mean for installation?

The I.D. locator means the locating shoulder is on the inside of the cup. This design requires less machining on the cylinder head for installation compared to older external locator designs.

Are these seat cups suitable for street-driven vehicles?

These spring seat cups are specifically designed for racing engines that experience extreme spring pressures and high RPMs. While they offer superior protection and location, they are intended for high-performance applications.

COMP Cams Spring Seat Cups 1.690" OD Eb Set of 100 4708-100

Name: COMP Cams Spring Seat Cups Eb 1.690 - Set of 100
Brand: COMP Cams
SKU: comp-cams-comp-cams-spring-seat-cups-eb-1-690-set-of-100-t14-4392311
Price: 694.60 USD
Availability: BackOrder

COMP Cams Spring Seat Cups Eb 1.690 - Set of 100

$694.60

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 Seat Cups Eb 1.690" OD - Set of 100. Protects heads and shims while precisely locating valve springs in high-performance engines.

Key Features

Set includes 100 spring seat cups.
Made from a thin, hardened steel alloy for durability.
Protects cylinder heads and shims from spring pressure.
Features an I.D. locator shoulder on the inside for precise spring placement.
Designed to withstand extreme spring pressures and high RPMs found in racing engines.
Eliminates the need for extensive cylinder head machining compared to older external locator designs.

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Product Details

With today's racing engines pushing extreme spring pressures and high RPMs, older style standard shims just won't hold up. COMP Cams offers a well-built solution with these spring seat cups. They're made from a thin, hardened steel alloy designed to protect both the cylinder head and the shim underneath, while also ensuring the valve spring stays securely in place. This updated design features an I.D. locator with the locating shoulder on the inside, meaning you won't need extensive machining on the cylinder head to install them.

These seat cups are specifically designed to handle the demands of performance builds. The hardened steel alloy construction resists wear and deformation, providing a solid foundation for your valve springs even under intense conditions. By precisely locating the spring, these cups help maintain consistent valve train geometry, which is crucial for reliable performance at high engine speeds. This set includes 100 pieces, giving you enough for a complete engine build.