I did ask the builder about 4 bolt mains. I think that helps more for high revving motors. I will be buying all forged stuff. It depends on what kind of racing you are doing. At 6000 RPM your crank will last 30 minutes. Occasional foray's up to 6000 for drag racing doesn't add up to much time at that RPM.
Small block chevys gen 1 will support max 600 hp. I am not sure how the LA small block will compare. And if I blow it up, it's not a total loss because I will know how much is too much! lol
