My 273 build

So the heads are 308 castings? Hell, I say go for it. That's what hot roddin is all about. Only thing though, I don't believe anyone makes an off the shelf piston so you're probably going to have to go custom. Plenty of companies out there will do it though.
Hey thanks your right that is what hot roding is all about. I believe so on the casting they came off a 78 diplomat cop car. And I already have the pistons from. Egee they wher a little more than half the price of the steel foged pistons from RSP. Wich wher 1200 hundred little bit more than I wanted to spend but it would be really to pu dual super chargers on it.