depending on how new your crank is, I dropped in K1 rods and wiseco pistons all under what stink 2400 bucs, now I dont have to worry so much on the pistons breaking up. Folks went the chevy route becuase there was nothing for our motors but now you have chocies. I know my setup is good for 1000hp but I am not going that high 800 is where I stop. Oh and there right dont mess with the heads or cam imo.