Bruce Lancaster
Member Emeritus
Pretty sure of '41-42-3nd of military production in war. There is some info as I mentioned in the '38-9 book production change section. Maybe someone here can quote that for us. Except for a '39 merc engine, all my early 239 stuff is entirely without provenance, no idea at all what the engines originally lived in...
The parts books seem to indicate both 1941 and 1942 part numbers for 239 blocks...don't know what the difference would be except maybe the little lump on bellhousing indicating position for full-flow extra passage...??
By the way, if you look carefully in the '37-48 engine book, you will see a lot of "raised" platform pictures, including one that seems to be a wartime full-flow engine.
The parts books seem to indicate both 1941 and 1942 part numbers for 239 blocks...don't know what the difference would be except maybe the little lump on bellhousing indicating position for full-flow extra passage...??
By the way, if you look carefully in the '37-48 engine book, you will see a lot of "raised" platform pictures, including one that seems to be a wartime full-flow engine.
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