Here I am again. Just brought home a replacement engine for my cracked block. Serial number.AD884366, casting number 889400. I believe it is a 41 but was told it was a 46 216.. it looks like the casting is a 41 but can not find anything on a seria number starting with AD? HELP PLEASE. Engine is on a stand. Serial number is clear except for the last number ?.and I read it several times.
Thank you3