ARP Performance Cylinder Head Bolt Kit HEX Chev B/B 396 - 427 454 # 135-3601 Rate_10 Port exit size at cylinder

Port exit size at cylinder head is 1

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Performer RPM Series

ARP Performance Cylinder Head Bolt Kit HEX Chev B/B 396 - 427 454 # 135-3601 Rate_10 Port exit size at cylinderARP Performance Cylinder Head Bolt Kit HEX Chev B B 396 427 454 # 135 3601 Cylinder Head Bolts, High Performance, Hex Head, Chevy, Big Block, Kit Fastener Style: Bolt Undercut Stud: No Head Style: Hex Fastener Material: Chromoly Fastener Finish: Black oxide Washers Included: Yes Quantity: Sold as a kit. Notes: Designed to fit cast iron factory style cylinder heads. ARP High Performance series head bolt kits are tough. They are rated at 180,000 psi 15