Here is the next phase of the Merc 165 story. I will be bringing it home in the next week. I should take the head off quickly as it is very tight to roll over. I suspect that it has had water come through the carb. into the engine. I also will be missing the fuel pump and the distributor. If the bottom end is not scattered, I should have all the pieces I need to put together a 250 engine for the 1946 1.5 ton truck. The 165 does have a two barrel carb on it, but it appears to have an integral intake and exhaust manifold (water cooled marine unit) so I will be using the manifolds from my 250 truck engine and likely going back to a single barrel carb.
Al
Alan