Comp Cams PTFE Valve Seal 512-16 for Dual Valve Springs

Description

Product Overview

The Comp Cams PTFE Valve Seal 512-16 is a precision‑engineered component designed to replace factory O‑ring style seals. Constructed from high‑quality PTFE, it delivers low friction, excellent chemical resistance and superior heat tolerance. Dimensions are 6 x 4 x 0.47 inches and it weighs only 1.58 ounces, making it a lightweight yet robust upgrade. This seal attaches directly to the valve guide, providing a tighter fit and more clearance for performance dual and beehive springs.

Usage

Ideal for high‑performance street and race engines, the PTFE seal fits valve guides with a 0.500″ outer diameter and 3/8″ valve stems. It is perfect for applications that demand increased clearance, such as dual valve spring setups, beehive springs, and aftermarket camshafts. Installers should machine the guide to accept the seal, a common step for performance builds. This seal is suited for enthusiasts seeking reliable sealing under high RPM and temperature conditions.

Why Choose Us

Comp Cams manufactures this seal in the USA, ensuring strict quality control and consistent material properties. The PTFE construction outperforms traditional rubber O‑rings, offering longer service life and reduced wear on valve stems. Our engineering team designs each seal to meet exact OEM specifications while providing the added benefits required by performance applications. When you choose this product, you receive a component backed by Comp Cams’ reputation for durability and precision.

Key Features

• Premium PTFE material delivers low friction and high temperature resistance
• Smaller outside diameter provides extra clearance for dual and beehive springs
• Direct guide attachment ensures a secure, leak‑free seal
• Fits 0.500″ OD valve guides and 3/8″ valve stems for a wide range of engines
• Made in USA with rigorous quality testing and responsive customer support

FAQ

Do I need to machine the valve guide to install this seal?

Yes, the PTFE seal attaches to the guide rather than riding on the valve, so a small amount of machining is typically required to achieve a proper fit.

Can this seal be used with standard single valve springs?

While it is optimized for dual and beehive springs, the seal can also be used with standard springs provided the guide dimensions match the specifications.

What is the expected lifespan compared to factory O‑ring seals?

PTFE’s superior wear resistance generally results in a longer service life, especially under high‑temperature and high‑RPM conditions.

Is this seal compatible with all Comp Cams camshafts?

The seal is compatible with any Comp Cams camshaft that uses the specified valve guide size, but always verify guide dimensions before purchase.

What warranty does Comp Cams provide?

Comp Cams offers a limited warranty against material defects, and our support team is ready to assist with any installation questions.