No actually it means a lot the only thing they did was put on slicks and work with tune-ups and headers the motors weren't cracked open or modified in any way. But you need to research this on your own if you really want the facts. it's not a matter of opinion it's a matter of history I don't understand why people can't get that through their head. bottom line is the 360's a truck motor that you can modify and make into a very nice Mill, and if you can get around with your low RPM Magnum hydraulic roller well knock yourself out. But don't be surprised when a little flat tap at 340 rips you a new one.