BB Chevy WP Merlin alum block/Dart iron head hsk. Genuine ARP hardware, supplied as kit 135-4207.Fits Chevrolet — 396, 402, 409, 427, 454, 496, 502, 572, Big Block - Dart, Big Block - World, Dart, World ProductsDetails Kit number: 135-4207 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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