• High Performance Series cylinder head bolts with a reduced wrenching hex
• Rated 180,000 psi (which is 15% stronger than Grade 8)
• Kits come complete with hardened parallel-ground washers
• Application: Chevy Small Block
• 23° Cast iron OEM, Gen III Vortec/Truck, most Edelbrock, LT-AFR, Brodix-8,-10,-11,-11xb, LT-1, Dart Pro-1, Trick Flow heads & most World Products heads