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I have a 1946 1 1/2 ton truck. The engine number is ADEA 232028. This is a little confusing because of the A in front of the normal prefix for a 2nd edition 46 235 engine. What is the deal with that? Also can someone explain the difference between the 1st edition 235 built in 1946 and the 2nd edition? I would like to use the intake and exhaust manifolds off this engine on a 1942 235 engine. The 1946 235 engine is setup, rusted or blown I do not know. Any ideas?

It's definitely a babbit pounding 235.

I'm not sure what the "A" before the prefix signifies, but I do know that the 3600's (like mine) came with engines that had prefixes that read ADCA.

My guess is that it's an "application" prefix that is tied to the 1.5 ton models.

As far as I know, the engines are the pretty much the same between 1942 and 1946. All of the parts should be interchangable. The thing that you have to watch for is when you insert in a full pressure 235 (1953-1962). They are a little longer and the parts don't always work.

Someone will be by in a bit to tell me if I'm full of it or not.

If I'm not mistaken the "A" code is a Flint, MI code and also I wonder if the 1st design is the 216 available in those years and the 2nd is the babbit pounder 235? Anyone?

Waldo:

I can't find my book with the numbers in it, so I'm going from memory. Here's what seems to stick.

The "First" and "Second" design is, IINM, the designation for Before and After the strike that year. I'm also pretty sure that the first design blocks were left over from before the war (1942). I'm not positive on that, though.

ADEA tells me that it's a 235 with a regular clutch that was cast in Flint. (The D is for 1946, the E is for 235, and the last A is the code for Flint and regular clutch.) I assume that the A, used in conjunction with the E tells what sort of truck it originally came out of. My truck came with an engine with a serial starting with ADCA, which codes out to a Flint 216 with a standard clutch that was used in 3/4 ton trucks in 1946 -- That first A, coupled with the C, signified it was in the 3600 Series trucks ONLY.

So, maybe Mike's engine was originally in a 3600, or maybe a 3800. Or, maybe that is the code for the big 'bolts. :confused:

Ahah it all becomes clearer now. I should have mentioned that the engine is now setting in a 1946 1 1/2 ton truck. So I have to asume that at least the manifold on the 1946 engine is the original? But I thought the other one was original also. Maybe they changed the design of the shape of the manifold and how it bolted on between the years of 1942 and 1946. Does any one have a 1942 engine with the original manifold on it? Does it have the ears on the manifold on the bolting surface of the bolt one in from the outside bolt? It also has a place for an oil filter to bolt on using clamps in front of the carb. I think I will use the 1946 manifold. I tried both manifolds on the engine and both line up perfectly with the ports,same size by the way, and bolt holes.