Aug 10, 2008 #1 1 1chance Active Member Joined Aug 8, 2007 Messages 1,855 I wanted to know will the oil adapt fit the 4.1 cover, the part that routes the oil thru the cooler?
Aug 10, 2008 #2 N novaderrik Well-Known Member Joined May 12, 2004 Messages 8,076 the only thing special about a 4.1 is the bore size- otherwise, it's just another Buick V6.