I was just starting on a 383 engine and I found a 454 bored to 468. It has a roller cam, oval port heads, good intake and carb. The engine dynoed at just over 500 hp. I can get a decent deal on it and it is complete carb to pan. The only negative it is a 2 bolt main block. How much horsepower can these take? It has a new scat cast crank and rods.
It seems like a decent motor except for the 2 bolt part.