We've been running two of them in the drag cars, both run Super Gas and put 500 rwhp on the ground and have never had a problem with either. Had a two bolt 514 in a Super Comp car, went 3 seasons with nothing more then a winter time freshen up, consisting of rings, bearings, and a touch up on the valves. They are a rugged, rugged block. We start all our BBF Ford builds with a "well seasoned" block, main cap studs and an align bore, Carillo rods and some super-light Mahle pistons.... No complaints.

I've got a 514 block with 4 bolt splayed caps that went 4 seasons with an 8-71 blower in a 2200 pound car. Think you could touch up the hone and run it again!!!!! If he has the budget to put them in, and is going with a blower or a 150+shot of nitrous, or using the engine in a heavy (more then 2500) pound car, then going 4 bolt would be a good plan.....