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COMP Cams

COMP Cams 1.580 Spring Seat Cutter

MPN: 4720cpg Catalog #: 001593990 Category: Tools Check Vehicle Fitment

Product Details

Cuts cylinder head spring seats to 1.580 outer diameter / .630 inner diameter. Requires the use of an arbor/pilot, which are available for 5/16, 11/32 and 3/8 valve stem sizes.

Valve Spring Seat Cutter - 0.630 in OD Guide - 1.580 in OD Valve Seat - Steel / Carbide - Universal - Each

Most high performance engines today require the use of larger-than-stock diameter valve springs. This 1.580 Spring Seat Cutter from COMP Cams will allow the engine builder to machine the cylinder head to the proper size for your spring. Each cutter requires the use of an arbor/pilot, which are available in three different sizes.

This valve seat cutter allows you to enlarge the cylinder head spring pocket to 1.580 outer diameter while reducing the outer diameter of the valve guide to .630.

Cuts spring seat to 1.580 O.D.; Cuts guide to .630; Other seat cutters available in many sizes from 1.350 to 1.810 O.D.

Spring Seat Cutter - 1.580 Spring Seat O.D., .630 Guide O.D.

COMP Cams 1.580 Spring Seat Cutter, .630 Guide

1.580 Spring Seat Cutter,for . 630 Guide

Seat Cutter - 1.580 Seat .630 Guide

COMP Cams 1.580 Spring Seat Cutter

Engine Valve Seat Cutter

Valve Seat Cutter

None

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Product Specs

Brand
COMP Cams
Part Number
4720cpg
Catalog Number
001593990
Product Line
Tools
Category
Fab, Tools & Shop Equipment
Type
Tools
UPC / Barcode
036584720041
Vendor Product Category
Tools
Vendor Product Subcategory
Tools
Length
3.20 in
Width
3.00 in
Height
1.20 in
Weight
0.30 lb
Units Per SKU
1
Freight / LTL
No
Ship Alone
No
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 11 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 11 available as of 6/3/2026.

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