COMP Cams 4671 Valve Spring Seat and Guide Cutter 1.340" O.D. for 0.500" Guide

The COMP Cams 4671 Valve Spring Seat & Guide Cutter is a precision engine machining tool designed for professional engine builders and performance enthusiasts. This cutter machines a 1.340" O.D. spring pocket sized for a 0.500" valve guide, ensuring a consistent, accurate seat for proper valve spring installation.

Using the correct valve spring seat cutter is critical when upgrading to performance valve springs. A properly machined spring pocket ensures the spring sits at the correct installed height, maintains accurate spring pressure, and prevents premature wear or valve train damage. COMP Cams tooling is engineered to the same exacting standards as their valve train components.

Key Features:

• Cuts a 1.340" O.D. valve spring seat pocket
• Designed for use with 0.500" valve guides
• Precision-machined for accurate, repeatable cuts
• Compatible with a wide range of performance cylinder head applications
• Engineered by COMP Cams for use with their valve spring upgrades

The COMP Cams 4671 is the ideal companion tool when installing performance valve springs that require a machined seat, helping ensure a professional-quality result on the engine build bench.