ARP 250-4203 Ford Head Stud Kit 6.4L Diesel

Description

This ARP 250-4203 Ford Head Stud Kit is for 6.4 Liter Power Stroke Diesel blocks. This set comes complete with 20 head studs, 12-point nuts and hardened washers. These studs are manufactured from ARP2000 Alloy and heat-treated in-house to 220,000 PSI tensile strength and thread rolled after heat-treat. This creates a fastener that has threads 2000% stronger than others!
Note:
Inner row M8 head bolts included.
ARP 250-4203 Ford Head Stud Kit Fits:
Ford 6.4L Power Stroke Diesel Blocks
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 ends up 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.