ARP Cylinder Head Bolts Kit , Hex Head, Chev 4.8, 5.3, 5.7, 6.0L # 134-3609ARP Cylinder Head Bolts Kit , Hex Head, Chev 4. 8, 5. 3, 5. 7, 6. 0L # 134 3609 Cylinder Head Bolts, High Performance, Hex Head, Chevy 1997 2003, 4. 8, 5. 3, 5. 7, 6. 0L, Kit Fastener Style: Bolt Undercut Stud: No Head Style: Hex Fastener Material: Chromoly Fastener Color: Black Washers Included: Yes Quantity: Sold as a kit. ARP High Performance Series Cylinder Head Bolt Kits ARP High Performance Series head bolt kits are tough. They are rated at