Originally Posted by Silver Surfer
So if they machine metal off the rod to restore a flat surface and make the lower rod journal round...doesn't that make an already used rod even weaker?
Good point about throwing the engine balance off...sounds like buying new rods is the way to go!
There are tolerances that need to be held. They don't take enough off a rod when they resize it to weaken it. If it needs more than a set amount they just toss them. Having rods checked and resized is pretty minimal cost compared to new rods. The shop that did the machine work on my 427 charged me $8 per rod to check and resize them.