Welcome to FTE.

I read your other thread about the starter problems.

I am sensing this is your first run at these problems and an engine swap?

OK, crank pulley. As you look at the engine, the lowest pulley:



Is that where you have water coming out, from that lowest pulley area? You say the cam lobes, or cam, is not turning. OK, how are you able to see the cam? Did you pull the intake manifold? What state of assembly is the engine at this point? With the manifold off and the crank turning, you would hear air going in and out of intake ports on those cylinders with the intake valves open.

The C6 transmission will bolt only to the 351m/400, or, depending on variations, to a 385 series engine. (429/460)

Which do you have, the 400 or the 351m?

 

 

Well, the 400 can be made into a real fire breather with a few simple parts. But first, do you know if it is a 351m or 400? You will need an extra part to make it a fire breather if it's a 351M. Also, a basic manual for that vehicle, like than Haynes or other fine brand will help you determine what you should be looking at vs. what's there. Is the manifold or other major component off the engine? How did you see that cam?

 

 

 

I'm not sure how an engine could run even for a moment with the cam not turning.

Are you sure the coolant isn't just coming out of a cracked water pump?

If it runs with your foot on the gas my first guess would be the vacuum lines to the carb... Probably the one from the carb to the distributor. Getting those lines sorted and then maybe rebuilding the carb would be my first step (though check the gas tank for rust too). Just guessing but, I'd think the coolant on top of the pistons was due to a poor seal on the head gaskets... you said they were blown right?

I'm new to these older engines too though (73 390 FE here), so I don't really know anything.

 

Also, take a bunch of pictures and post them.

 

Good points, don't sell yourself short. OP needs to get a manual of any type and sort out vacuum and wiring. It sounds like this thing is a runner. Being a 351M isn't great, but IMO it would be best to make a (better) runner out of it first. Once fuel, spark, ignition, other electrical is "fixed", then you have a decent starting point for an upgrade, or if OP insists, a complete swap.

Keep in mind that the swap to a different engine series, even to the 429/460 (385 series) engines will require far more running down of all of the above vs. correcting the existing engine. Not that a clean slate isn't a good thing to start with, but I would stick with it at this point.

 

 

 

Take pictures of where the fuel is coming out of the carb. Sounds like you need a rebuild. I just rebuilt my first one a few weekends ago and it's a piece of cake.

I'm not sure about your motor, but I'd definitely think the line off the vacuum advance on the distributor needs to hook up to the carb. Take pictures.

You might want to pull all the plugs and inspect them. Some might have gotten fouled up and need replacing.

Even if the whole thing is shot, I'd still go with rebuilding what you have, then adding whatever parts you want to add HP. If it is running at all right now, there probably isn't much that needs to be done.

Other than manuals, youtube can be your best friend once you know what to search. There are tons of walkthroughs for anything you want to do.

 

Also, I searched around and I do think there are supercharged 400 and 351's as well as turboed ones.

Here's a 351 on a dyno

 

 

That's a 351w, not 351m. There are adapters to use 351c intake manifolds on the 351m/400, though those are usually used in conjunction with 351c 4bbl heads. But if those work with 351m/400 heads and there are supercharger intake manifolds for the 351c, then that could be a solution.