Oh, here we go again. Get ready for the Internet Fucktards to pick up on this! I do not care what anyone says! These are different alloys. PERIOD! How do I know? By welding up a shit ton of these cases. By grinding on a shit ton of these cases. I think even Pontiac stated that these cases were Heavy Duty! The darker grey one. Now there are other self proclaimed Munice experts that might state I am a Mentl Midget. Perhaps. But 2000 plus rebuilds under my belt you might think I might know something! Who knows for sure?
