273 commando rebuild question

zhandfull said

On the 273 rods I think my main concern is the 45 year old bolts. Of course if I have new bolts installed I think they need to be resized. Then next thing I know I have more money in them than a new set cost at Jegs. The 340 rods I have a lot of money in from 20 years ago but they have very little run time on them.

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I see. Yes new bolts are in order and they should be resized for sure. New ones or the 340's will be just fine as long as you balance it. Check with your machine shop. I don't think it was that much to install new bolts and resize. I'm sure many engines were built/rebuilt with mismatched parts with no problems. Comments anyone?