ARP HEAD BOLT KIT 445-3706 BB CHRYSLER 383 400 413 426 440 WEDGE W/FACTORY HEADS OR EDELBROCK RPM HEADS 60919/929/149/189 STAINLESS 12 POINT HEAD ARP Stainless Head Bolts are available with a reduced wrenching hex or a 12-point head that eliminates the need for valve train removal to facilitate cylinder head re-torquing.