I ran stock rods with arp bolts in a 355 once. I drove it on the street (almost everyday) with 11:1 comp and had around 500 hp. At the track I ran it with a 250 shot and shifted at 8000. I put about 200 passes at the track and numerous street races on it over a 3 year period before it gave it up(the street races where back in the early 90's when I was yound and dumb but at least we were on a deserted dead end road) and then it spun a rod bearing not broke a rod or anything. I had the rods checked,risized and put them back in after rebuilding the motor but sold the car a little while later. I have had friends use stock rods and not have such luck so you never know.