Rebuilding a 74 Duster - Kinda...
You better build it pretty healthy if your going smallblock. A cleveland is no slouch. Been around a few of them in stock form and one of the best running stock motors out there. A local friend has a 1970 cyclone with a 351c, he took it to the local 1/8 mile strip when I was running the dart. He pulled off an 8.31 may not sound that fast but he was running his street tires and spun alot. So I guess what I'm trying to say is go with a big block. Or if money is no object stroked small block and tell them its a 318.