well, I was wondering If i could just slap on some arp rod bolts to a b18a/b or is there more to it?

 

You can do that, but most people recommend resizing the rods because the rod bolts can distort the big end of the rod.

 

I want to know too.......have anyone used the rod bolts without resizing the rod journals? How'd it hold up, etc....

 

You might get away with it but why risk it resizing rods is cheaper than rebuilding and resleving. Whenever you change bolts or studs recheckand resize if nessasary.stronger bolts will distort the big end differently than stock bolts and could make your rods egg shaped or bigger at the parting lines.