Main Bolt Kit for Jeep 4.0L inline 6 without factory main girdle

Main Bolt Kit for Jeep 4.0L inline 6 without factory main girdleFar superior to any other main bolts available for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly steel, all ARP main bolts feature a reduced renching head, large underhead radius and rolled threads for the utmost in reliability. The threads are rolled after heat treating which gives them about 2000% better fatigue strength than most main

Material 2: 8740 Chrome Moly

They run-in straight and true

while the bolt kits come with washers

and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others

square drive forged into bolt head

heat-treated in-house to 190

The less drag on the motor

Simply followmanufacturer’s instructions

12-point head design and larger than stock shank diameter for increased strength and improved flywheel register

000 psi for the ARP2000® material

the more power available to you

but the results are well worth the extra effort