[mtoney]

So is the Lombardini 10LD400-2 in my 920 a relative of the old Ruggrinni design or an original Lombardini design? It does closely resemble your engine. I think that diesel would look good in that old Ariens, and IMHO it has more room under the hood than the Case 444. I put a 10hp air cooled single cylinder diesel into a 444 and it was a tight fit. Cant wait to see what you do end up doing. Mike