m7 and -4 AN for oil drain? No.
You either need to tap your windage tray or your oil pan for oil drain. There is NO factory hole for an oil drain. You are probably talking about the oil feed, which you can take a bolt out of the head or the block for. An oil drain should ALWAYS be -10 AN.
1992 Eagle Talon TSi - sold (POS)
2002 Mustang GT - sold
2002 SVTF - sold
2008.5 Mazdaspeed3 GT - cursed
2003 350Z Track - basically stock, and it runs