Your New Favorite Arp 256-4201 Ford Modular Head Stud Kit 12pt Bundle [RWuxLvcs]

This ARP 256-4201 Ford Modular Head Stud Kit is for 4.6L and 5.4L 2V/4V engines. This set comes complete with 12 point nuts and hardened washers. These studs are manufactured from ARP2000 super alloy, heat-treated in-house to 220,000 psi tensile strength, and thread rolled after heat-treat to create a fastener that has threads 2000% stronger than others!

ARP 256-4201 Ford Modular Head Stud Kit Fits:

• Ford Modular 4.6L and 5.4L 2V/4V Engines
  

STUDS vs. BOLTS

Virtually every top professional engine builder relies on ARP head studs for their all-out competition powerplants, and for good reason!

Here’s why: when you use bolts to secure the head, the fastener is actually being “twisted” while it’s being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously.

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.

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.