The LS1 can take some abuse for sure but to say best hands down for abuse, I'll have to disagree with you on that. My engine has been running 15 pounds of boost for about a year and is about to run 19lbs of boost on an otherwise stock engine. There are guys who have been running Kenne Bell setups for over 30,000 miles at 17+ pounds of boost which is about 580RWHP. With a forged crank, Manley H beams and forged pistons I would put my engine up against any LS1 in the abuse department.