Depends on what you want to do with it. I never inspected my frame i just bought mine to lift and beat up on if it lasts me more than a couple of years than i got my money worth. Definitely check out the electrical!
I am in the process of my own rebuild of a 1977 PowerWagon 3/4 ton. definitely change out that intake manifold and swap in a four barrel carb. You'll have to replace the starter with a smaller one if you want to run long tube headers. i plan on lifting mine sometime in the future. I've had to fix a lot including: the dash (lights went out had to sauder some wires back in), starter relay had a lot of problems, starter.
actually there is a kit made by MR. Gasket that lets you adapt the 2BBL intake to a 4BBL intake(seem to remember it being $15). I used one on my 1958 Power Wagon W200 as parts for the 318 Polysphere motor it had are boookooo bucks! i would suggest maybe ordering a new wiring harness and starting from there.
my 1985 Ram has electrical issues, and it's been a pain in my ass tracking them all down because someone wired in a bunch of crap in an amateur way, now corrosion has gotten into those places and caused havoc, plus the fact that it's old and nature has taken a toll. If you stay with the original wiring harness I would definitely get some QD electronic cleaner and disconnect and clean every electrical connection you can find in the truck, then use di-electric grease in the connectors before you re-assemble them, that will help tons! ALSO, check that your engine is correctly grounded to the frame! I cannot stress this one enough, run an auxiliary ground strap from the engine to the frame, it helps a ton, check your body grounds as well. remember the older trucks used the body as a ground for a lot of things, later they got a bit smarter and started running a ground return wire because they figured out that a body ground really wasn't that great not sure if a '77 used a body ground but, I think they stopped doing that in the '60's
1977 Dodge Power Wagon
any gear oil
Any major parts store.
See sources and related links below and punch in Dodge, 1977 and which W-series model you have (W200, W500, etc).
It is in the tank and you can buy them from a Chrysler dealer that had them in Washington. I can't remember the dealer it's been so long.
behind the intake close to the fire wall right above the top tranny bell housing bolt
We have a 1977 Dodge Power Wagon CREW CAB 4x4 - FOUR DOORS - disassembled and being rebuilt. Most of the parts were found through the internet from private parties. (My wife told me today I have to sell mine because it has taken me too long to get it rebuilt. We had a deal that I would finish it in two years or else. It has been 4. The long block is complete - new rods, pistons, and rings. Block is straightened. All that is needed is the blocks - found them in Las Vegas for $300 but haven't bought them. No cancer on body except a small bit on driver's door. Painted chassis and rear ends. New seals. Self locking hubs. If interested, call me. Jay 520-399-2420)
318 =160 hp 360 =180 hp 400 =200 hp 383 =258 hp 440 =235 hp all where found in dodge trucks from 1972 to 1980
The power of the engine and the maximum speed of the 1977 Fiat 132 Wagon Diesel is 84 kW (115 ps) and 190 km/h respectively.
86 bhp is the power of the ford Taunus Granada wagon diesel 4cyl 1977 engine and its maximum speed is 94 mph.
The power of the engine and the maximum speed of the 1977 Plymouth Volare Wagon Automatic are 104 kW at 4,000 rpm and 155 km/h (96 mph) respectively.
59 bhp (60 PS/44 kW) at 5000 rpm is the power of the fiat 128 1300 wagon 1977 engine and its maximum speed is 162 km/h.