Brian Crower Polaris Pro R 2.0L (20-up) ARP625+ Head Stud Kit AR8682

Made from ARP's premium Custom Age 625+ alloy material and rated to 260,000 psi, BC by ARP head studs feature a double undercut shank for improved resonance and not only offer superior clamp loads over cylinder head bolts, they provide proper alignment of the head and gasket with more accurate and consistent torque loading. Bolts will actually twist while torquing to proper spec, greatly reducing their ability to hold true.