I have run bbc 4-ever all 2-bolts NEVER lost one yet around the HP you are wanting to make ; use arp bolts or studs have line bore checked if you use studs & if money allows have it ck. any how should been fine
I have a 482 I turn 7200 rpm WITH a good rotating assy :wink: that is my opinon & you know what they say about :lol: