IMO kinda funny, Chevy guys who want to make power use the big block 550+ cu in. Small blocks can play IF you have your 4 stages of no2. Like one other post says, cubic inches rule, that means big block. Unless the rules require a small block, to me it's a waste of time and money. This crap that big blocks don't stay together, tell that to the Top Fuel-Funny Car guys.