Chevy V6 90° hi-port 3/8" holes, head bolt kit. Genuine ARP hardware, supplied as kit 233-3721.Fits Chevrolet — 6 Cylinder (all)Details Kit number: 233-3721 Category: Cylinder Head Product group: Cylinder Heads California Proposition 65 warning⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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