Piston pin to rod clearance

I ran steel to steel on a 383 sbc , worked fine , you have to make sure they get oil !!!
It might "work", but then you have no sacrificial metal. Wear occurs on either the rod or the pin. Or both. Something has to give, and you should prefer to have it be the inexpensive bushing that is easily replaced. If operating on a tight budget I'd look for a decent set of forged 340 rods. If not so much, buy new forged.