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I'm looking for a 351w to swap into a project truck.
I ran across an ad for a "351 windsor model M"
The engine is taken completely apart and has had machine work.
My initial thoughts are this could be a marine engine. Is there any way to tell if it is a boat engine or not?
If it is, in fact, a marine engine, is it ok to use for a truck? I've read that some are reverse rotation. Is there a way to tell?
The engine comes with a transmission and the current owner says he bought it to put into a project truck of his own.
Yes, I've heard most marine engines rotate the opposite way. I don't know how to deter in the rotational direction, but I would think you could compare the lobes on the cam to another cam and spot the difference. I have a used cam laying around and could post a pic of the first two sets of lobes if you want.
Another idea would be to look at the casting numbers on the block. If it was originally sold as a marine engine those might be different.
yeah the valve cover only has 6 bolts. I asked about casting nmbers but he wasn't at home to check.
I would love that picture of the cam so I could compare the two.
The gentleman who has this engine for sale is also selling a transmission with it and had bought the engine to swap into his f100, then sold the truck. He is pretty adament that its not a marine engine, but I'm not sure what the "Model M" means.
Ok, I'll get the pic(s) of the cam - when I finish the Starbucks. I can't imagine what else Model M would mean. But, even if it is a marine engine I would think it could be used in a truck with the proper cam. From my experience with boat engines, which is probably 3 or 4 I/O's, the engine itself appeared to be identical to an automotive engine. The differences were with the carb, ignition, starter, and exhaust - all of which were bolt-on. And, in many cases I replaced them with automotive items when replacement was necessary.
Here are a couple of pics of the cam I took out of a 351W. If you look at the cam from the front, the first four lobes point roughly at:
11:00
10:00
3:00
6:00
I would think that a cam that caused an engine to rotate in the opposite direction would have the lobes staggered differently. In addition, the gear teeth for the distributor might go the opposite direction, although they could stay the same. However, they usually like to change them for rotation.
If it is a marine engine, the only ones that are reverse rotation are ones installed in twin engine boats. When we built replica Cobras in Florida, hardly a month went by that someone didn't contact us about a 427 engine. LOTS of Ford 427s were used in marine applications..and one always ran reversed..
That was a while ago..but..I don't recall any difference in the major parts..I think firing order, water pump..and probably a few more small items..I went with a 289 HIPO in my car..
Also, is there any way to tell what the tranny is?
According to the owner It has this cast on it: DAO7006AB .7 And on the other side it has 7k25.7
Also has a 3 with an underline on the neck of the transmission.
Last edited by Gigemags05; Sep 19, 2014 at 01:19 PM.
Reason: link
I can't ID the tranny. The bell housing looks different than the C6's I'm familiar with. And I can't find anything in the parts catalog with those casting #'s. Perhaps NumberDummy?
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