4JJ1 ARP Head Studs
4JJ1 ARP Head Studs
4JJ1 ARP Head Studs
ARP2000 Performance Cylinder Head Stud Set to suit Isuzu 4JJ1 and 4JX1TC engines.
These ARP2000 head studs are a heavily alloyed martensitic quench hardened and tempered steel that offer a 15% increase in clamping load at around 75% of the studs yield strength and up to an impressive 30.3% increase in clamping load at 85% of the fasteners yield strength!
Advantages of ARP2000 Head Studs over Standard 4JJ1 head bolts:
What this ultimately translates into an increase in reliability for performance applications and a lower chance of head gasket failure.
Note: Thread in block needs to be tapped further to allow for studs longer thread
This set also includes ARP Ultra-Torque lubricant