Description

This ARP 247-6302 Mopar Pro Series Rod Bolt Kit is for 6.1L and 6.4L Gen III Hemi engines. It comes with ARP2000 alloy bolts that are 220,000 psi. This is TWICE the fatigue life of 8740 Chromoly Steel! Sold as a set of 16.

ARP 247-6302 Mopar Rod Bolt Kit Fits:

• 6.1L and 6.4L Gen III Hemi engines

TECH NOTE: ROD BOLTS

The most important fasteners in any engine are the connecting rod bolts! They hold the key to the entire rotating assembly. A broken bolt will lead to catastrophic engine failure. As you can imagine, the most critical joint is where the connecting rod halves mate. The rod bolts must support the primary tension loads caused by each rotation (or cycle) of the crankshaft.

When the crank rotates, the big end of the connecting rod essentially becomes oval-shaped and the rod bolts bend.As the crankshaft continues to rotate, the rod becomes round again. With alternating tension loads and cyclic bending of the bolts, it is very important to install fasteners that are able to exert a clamping force greater than the load imposed upon the joint (tension).

The ARP 247-6302 Mopar Rod Bolt Kit is perfect for that application!

In addition to using a rod bolt with sufficient strength to withstand the loads placed upon it, it is absolutely imperative that the bolts be properly tightened. The preferred method of monitoring the correct amount of tension is through use of a stretch gauge. This is far more accurate than using a torque wrench.

Moreover, through subsequently checking the rod bolts length at tear downs, it is possible to determine if it has been stressed beyond safe limits and must be replaced.