360 con. rod bolt sizes

Currently have my 360 block at the machine shop. Bored the block .030 and went with the advise from many members and puchased the .030 keith black 107 pistons with advertised "zero deck" and valve reliefs.

My machinest is strongly recommending that I increase rod bolt diameter from 3/8" to 7/16". New rod bolts would be ARP.

This as well as re-size all con. rods.

What "out of round would be acceptable on my existing rods?

If I elect to continue dumping $ into my block; is this $ well spent?

For the record, I am going to spend the $ and have the rotating assy. balanced while it is there. Obviously, I need to make a decision on what to do with the rods if they are going to balance the assy.

Current rod bolt size is 3/8. How much extra should it cost to have the rod bolt holes enlarged to accept the 7/16 ARP's.

Appreciate the ongoing support :cheers:
Author: admin