It has been about 10 years or more since I did a 3.5 to 4.6 swap in one of my Rovers, and I may have to do another one do to some excessive oil consumption on the wifes '85 110 . I just cant remember what ancillary pieces will and wont swap back and forth ? front covers, oil pumps, water pumps distributor set ups . Or am I better off with 3.9, 4.0 or 4.2's ? Almost tempted to find a junk yard with a fuel injected 3.9 (and use the simple injection system on a larger displacement 4.2, or 4.6 . I just need to verify what will bolt up and what wont . If it gets too complex I may just stick with the carburetor (although I would like to get better fuel economy and a little more power for the mountains than the 3.5 is currently putting out.
Any input would be aprecated.