i have a chevy 350 block with one bent connecting rod.
Ah yes. How many times have I done engine repairs on a shoe string budget? I can't even begin to guess.
Of course you can replace one connecting rod with success. Especially on a small block Chevy that typically has a very high threshold to band aid repairs.
Ideally if you were doing a good rebuild, you would take all your rods, find the lightest one, then remove enough material of the other rods until they weighed the same as the lightest. But, then again, ideally if I looked like Brad Pitt, the rest of my life would be perfect too.
Pay extra attention to the journal of the crankshaft that hosted the bent rod. A bent rod causes uneven wear to the crankshaft if operated too long.
I am sure other people on here are going to tell you that you can not replace just one rod. But these same people never had to try to keep a car running while keeping kids in braces and keeping a roof over the house.
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