Factory rods with ARP 1.7 long bolts

[androboost4]

I’ll throw this question out there , I have build going on with stock rods , so before resizing them I installed ARP # 123-6002 bolts , as it turns out these are about .200 longer than the stock bolts . As I found out too late that the shoulder right above the threads can and does contact the threads in the rod with damage to them . So has anyone experienced this ? I have since found that ARP now makes a shorter bolt , # 123-6001 .

 

[earlbrown]

I had no idea that ARP made two different lengths for the 3.8s. I've never noticed a choice when I buy mine. I'm guessing I have the 6001s since mine fit.

The only ''issue'' is that you have to countersink the clamping surface on the rod cap to account for the ARPs radiused shank.

 

[androboost4]

The trouble was that when I bought the 6002 bolts in 2014 they were the only choice listed . After the caps were machined down (for resizing) putting the bolt should that is near the threads closer to interfer and crush the top threads .
But you are right about needing to countersinking the caps and I did that .
I hope others out there can learn something from my experience.