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COMP Cams 4721CPG Spring Seat Cutter for GM Vortec - 1.350" Spring Seat O.D. .775" Guide O.D.
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Enter your Engine Family Number and we will confirm whether this exact converter is street-legal for your vehicle.
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.
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.
Specifications
| Cuts Guide Outer Diameter to | 0.775 IN |
| Cuts Spring Seat Outer Diameter to | 1.35 IN |
⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.
Warranty: 12 Months
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
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Shipping: Free to the USA.
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