I have no idea what has been done to this block as I bought the car as is, not running, parked for 7 years or longer, but from what I'm seeing I doubt it had any big money put into it, just a quick, cheap go fast and hope it lasts build. Stock 360 crank, .040 over pistons, cheap headers, best parts are the 340X heads, MSD, and the Demon carb.