Danny and Paul throw verbal punches over how much horsepower a stock bottom end LBZ - or any Duramax - can hold. Larry LaPan visits the podcast and seems to agree with Paul that a stock bottom can hold 750 horsepower (his LBZ does just that). Danny argues 650 is the max because any higher and you'll probably crack a piston. Danny even mentions SoCal Diesel's Guy Tripp - renowned engine builder - who took his side during the July 8, 2016, podcast. So sit back and listen to the arguments and reasoning on both sides of this debate and draw your own conclusions.