Rocker Arm Stud Boss Cutter - 0.365 in Pilot Diameter - 1.150 in OD - 0.330 in ID - Steel - Each

Valve Seat Cutter

When using screw-in Studs on a factory cylinder head it is necessary to machine down the Stud boss equal to the thickness of the new Stud's jam nut plus the guide plate thickness. The Stud Boss Cutter from COMP Cams comes with a universal arbor that also acts as a pilot/guide and fits into the original Stud hole.

Additional Information

Stud Boss Cutter with Pilot

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

Stud Boss Cutting Tool, Steel, Carbide Tipped, Includes Arbor/Pilot, Each

These COMP Cams stud boss cutting tools are designed to machine down the cylinder head in order to mount a screw-in rocker arm stud. They include a carbide-tipped bit and an arbor pilot for accurate machining.