Cylinder head bolt kit from ARP High Performance Seriein hexagonal performance.
20 pcs (7/16"-14) with hardened washers.
Standard cylinder head 289/302, Edelbrock 60259/60379 or corresponding.
For 351W cylinder head on 289/302 use "insert washers" 7/16" like ARP 200-8573/ or 200/8598 or corresponding.

High Performance Serie.
High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing.
All High Performance Series bolts are 180,000 psi (which is 15% stronger than Grade 8) and kits come complete with hardened parallel-ground washers.

More information in ARP´s catalog here.

This part replaces part no ARP-154-3601