To add to this I will never use a Canton oil pan on my small block again without modifying it. I bought one after seeing how nice the small block Chevy one was when I built an engine for a Friend. The Mopar one was a piece of JUNK compared to it and my oil pressure was dropping like a turd when I left the line. I put it on hoping it would give me more room than my Milidon did with the 1 7/8 Hedmen headers so I could use a diaper. NEVER again and thank God for my Racpak or I may have not caught it.