What material are these COMP Cams exhaust valves made from?

These valves are made from a 21-4N forged stainless steel alloy. This material is chosen for its strength and ability to withstand high temperatures and pressures found in performance engines.

Do these valves come with everything needed for installation?

This product includes a set of eight exhaust valves. You will need to ensure you have compatible valve springs, retainers, and locks for your specific engine build, as these are not included with the valves.

What is the benefit of the hard tip on these valves?

The minimum 50 HRC hard tip on these valves is designed to resist wear and eliminate the need for separate lash caps. This contributes to improved durability and a more straightforward installation process.

1997-2004 Chevrolet Corvette Exhaust Valves

Name: COMP Cams Valves Exh 1.57 8MM 5.450W/.2
Brand: COMP Cams
SKU: comp-cams-comp-cams-valves-exh-1-57-8mm-5-450w-2-t14-4393039
Price: 200.42 USD
Availability: BackOrder

COMP Cams Valves Exh 1.57 8MM 5.450W/.2

$200.42

On Backorder

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

Fits 1997-2004 Chevrolet Corvette. COMP Cams exhaust valves with 8mm stems and 1.57" heads for improved engine performance.

Key Features

Fits 1997-2004 Chevrolet Corvette.
Features a 1.570-inch head diameter and 5.450-inch length.
Utilizes an 8mm stem diameter for compatibility with many GM LS engines.
Constructed from 21-4N forged stainless steel alloy for durability.
Has a minimum 50 HRC hard tip, eliminating the need for lash caps.
Includes hard chrome-plated stems with proprietary oil retention surfacing.

⚠️ 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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Will this fit your vehicle?

Product Details

Starting with the 21-4N forged steel alloy construction, these COMP Cams Sportsman exhaust valves are built for serious street and competition engines. The 1.570-inch head diameter is a common size for many GM LS engines, and the 5.450-inch length ensures proper fitment in the specified applications. These valves are designed to handle the demands of higher performance builds.

The stainless steel material is chosen for its durability, and the valves feature a minimum 50 HRC hard tip, which means you won't need lash caps. This hard tip helps prevent wear and tear over time. The 8mm stems are hard chrome-plated for added strength and feature a special oil retention surfacing to help keep them lubricated, along with a single bead lock groove for secure installation.

This set includes eight valves, making it suitable for completing an engine rebuild or upgrade on your compatible GM vehicle. They are a well-built option for those looking to replace worn-out valves or seeking improved performance from their engine.