COMP Cams 4735CPG Valve Spring Seat Cutter 1.580" OD .560" ID

The COMP Cams 4735CPG is a precision valve spring seat cutter designed for engine builders working with high-performance cylinder heads. This carbide-tipped cutting tool machines valve spring seats to 1.580" outer diameter to accommodate larger-than-stock diameter valve springs commonly required in performance engine builds.

Key Features:

• Cuts valve spring seats to 1.580" outer diameter
• Designed for .560" (14.224mm) valve guide inner diameter
• Durable carbide cutting tip for long tool life
• Requires separate arbor pilot for use (available in multiple sizes)
• Universal fitment for various cylinder head applications

This professional-grade machining tool allows engine builders to properly size cylinder head spring seats when upgrading to high-performance valve springs. The carbide construction ensures clean, precise cuts and extended tool longevity. Note that an arbor pilot must be purchased separately and is available in various sizes to fit different valve guide configurations.