I am sure someone will give me all kinds of static about this but......
I believe anytime a rod bolt stretches for any reason....it makes them weak. If a manufacturer says 45 lbs....that is what I torque it to. If it says 63lbs...79lbs....84lbs...that is what I torque it to. If they are new bolts....then I put them in a rod vise with proper lubricant and torque them to the setting and back them off....three times. Then assemble and torque them to the manufacturers setting. Been 25 years and have yet to have a rod bolt failure.
Anytime something stretches is not good. Where does the .006 come from? Is it the bolt...the threads on the bolt...or the threads in the rod? Anyone of these or any combination of these can cause issues.
Sometimes I think companies make up stuff like this so they can just sell parts.
JD's Performance
13034 Hwy 99
Wapello, IA 52653
319-931-0677
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