ARP 114-3601 AMC Head Bolt Kit 6pt.

This ARP 114-3601 AMC High Performance 7/16″ cylinder head bolt kit is for290-343-390 AMC Engines. The reduced wrenching hex head 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)!

Kits come complete with hardened parallel-ground washers. Sold as a set of 28.

ARP 114-3601 AMC Head Bolt Kit Fits:

• 290-343-390 AMC Engines

Which is better, either cylinder head studs or bolts? The answer depends on the installation. On many street-driven vehicles, master cylinders and other items protrude into the engine compartment. Head bolts would allow cylinder head removal with the engine in the car.

The ARP 114-3601 AMC Head Bolt Kit is perfect for that application!

Studs also provide more accurate and consistent torque loading. Using studs ensures easier engine assembly, and proper alignment of both the cylinder head and gasket.

Heres why: when you use bolts to secure the head, the fastener actually twists while being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously.

Install a stud in a relaxed mode never crank it in tightly using a jammed nut. Always install the stud hand tight! Then, when applying torque to the nut, the stud will stretch only on the vertical axis.