ARP 154-4201 12-Point Head Stud Kit, Small Block Ford 7/16in

Description

The ARP 154-4201 head stud kit is made for the Small Block Ford 7/16in combination.

Head studs clamp the cylinder head more evenly and more accurately than head bolts. A stud is threaded into the block once and stays put, so torque applied to the nut goes into stretching the stud and not into twisting it. That gives a more consistent clamp load across the head gasket, which matters most on boosted, high-compression, and race engines.

ARP head studs are heat-treated before the threads are rolled, which gives far better fatigue strength than threads cut or rolled before heat treatment. Each stud is centerless ground for concentricity.

ARP Head Stud Kit Features

• 12-Point nuts
• Threads rolled after heat treatment for fatigue strength
• Centerless ground for concentricity
• Reusable, unlike torque-to-yield factory head bolts
• Sold as a kit