Valve Spring Seat Cutter - 0.775 in OD Guide - 1.350 in OD Valve Seat - Steel / Carbide - GM Vortec Head - Each

Valve Seat Cutter

Cuts cylinder head spring seats to 1.350" diameter / Cuts to .775" inner diameter. For installing larger springs and hardened spring seats on GM Vortec heads. Requires the use of an arbor/pilot, which are available for 5/16", 11/32" and 3/8" valve stem sizes.

Additional Information

This valve seat cutter allows you to enlarge the cylinder head spring pocket to 1.350" outer diameter while reducing the outer diameter of the valve guide to .775". Ideal for installing single springs on GM Vortec head.

Part Type

Engine Valve Seat Cutter

Product Overview

These tools from COMP Cams will allow machining of the cylinder head to the proper size for your spring. Each cutter requires the use of an arbor/ pilot, which is available in three different sizes. These arbors/pilots will also work with the valve guide cutters used for shortening the guide for a high lift cam or installing a COMP Cams PTFE seal for oil control.
• Seat cutters available in many sizes from 1.320"-1.810" O.D.
• Valve guide cutters available to cut guide to .446", .494",.500", .530" or .625"
• A rbors/pilots available for 5/16", 11/32" and 3/8" diameters

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Product Details

Product Downloads

#	Document Type	Download
1.	Catalog

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Reference Information

Valve Spring Seat Cutter, 1.350 in., Single Spring, without Hardened Seats, GM Vortec Head, Each

COMP Cams valve spring seat-cutting tools allow you to machine the cylinder head for the correct diameter valve spring. This will allow you to install larger springs and hardened spring seats. They will require the use of an arbor/pilot (sold separately).