702 GMC V-12 powered '62 GMC 1-ton

[cayoterun]

I got all pumped up about this, 'til I saw the price, then I fizzled & spluttered like you'd turned the end of a ballon loose.
Thanks for posting it, bigunde. I can always drool, but fight credit card bouts of insanity all us old car/truck nuts suffer now and then.
Great setup. Glad it's available, at least it adds another option.
Cayoterun

[watahyahknow]

Originally Posted by Lated

I think you missed a 3 in your price

thats for the shiftkit to convert to manual

[watahyahknow]

think you can make youre own adapter from a piece of inch thick aluminium just make a gasket from the engine and the trannieface lay them over eachother and draw a cthirt one covering all the boltholes needed cut this out with a eeeeh electric saw thingie or bandsaw and then put the holes and treath in it with a drillpress , you still need to have some sort of spacer turned on a lathe to get the torqueconverter in the right place again

[cayoterun]

Exhaust pipe paint? ------ Does any of this hi-temp spray can paint work at all on exhaust pipes. I'm not looking for any thing fancy, maybe something to keep them from rusting. I'm starting to build some stacks for the motor and as crazy as it seems, from square tubing, and point them up. One from each cylinder. I need to get the noise up higher so people won't have to wear ear protection and still hear it. They have made square tubing headers for them for years, but they were all horizontal so rain wouldn't get in them if they died during a rain shower. This may just be a temporary deal for while it's still in the stand. Just wondering about some of the stuff on paint shelves, but never used any.
Thanks,
Cayoterun

[slug]

have you ever thought of mounting the engine and tranny in the bed faceing backwards and useing a v drive from a boat?? i seen a episode of monster garage where jessie used a v-drive to make a ambulance do a wheelie. that would get the weight of the motor over the rear axle, or even give you room to move the engine/tranny where you wanted to get better weight distribution.

[Lated]

How about using a Pontiac Tempest trans-axle

[cayoterun]

Slug: There's been several similar configurations suggested in prior posts and all are worth consideration. I think my favorite is the one with the motor in front on the old time "Jalopy".

Lated: The trans-axle idea is good, but it would need to come from something such as a pusher bus, as a car set-up wouldn't be beefy enough to stand the torque this motor has.
I spent almost all day today in a large salvage yard looking for a tranny, and came up empty handed.

Finished roughing together one set of three stacks, (one head), Bolted it on, and ran it for awhile. Kinda' good to be able to hear each cylinder individually, but not convinced this is permanent tho. It may bring too much heat up around the top of the motor and add to the cooling problems, I'm sure we're going to encounter.
May opt for 4 real quiet mufflers. That thing is LOUD in a metal shop.
Thanks for all ideas and support.
Cayoterun

[54 jimmy]

what about putting that moster in a older c-50 truck. it would probably fit and they are big and beefy. kinda like this 1968 c-50 truck

[cayoterun]

54 Jimmy: Something like that would be the practical thing to do. When I started, I had a non-running motor and the ideas just kept coming and by trying to combine them to have a functional and unique vehicle to show the motor has become my goal.

There's a V-12 single axle truck posted on 6066 GMC website at Tulia, Tx. that sure needs to be restored as is, if anyone would be interested. It's too nice to be cannabilized or salvaged.

89 Crew: I had never considered anything from a car assuming none of them were stout enough. I could sure be wrong.

Due to spine/vision giving more trouble, progress sure seems slow.
Thanks,
Cayoterun

An invitation: Anyone passing through this area and would like to hear or see it run, your welcome at our place anytime. Bring ear plugs.

[89 crew]

For a transaxle have you looked at the 78 Cadillac Eldorado? It might be able to hold it.

[Storm Chaser]

cayoterun, are you on vacation, or what? Any progress?

[cayoterun]

Still dealing with the tranny question. I WANT? a 5spd over, but seems like they are as hard to find as one of the old motors. I'm trying to stay bolt on without adapters and machineing so if someone wants to do another, at least we will have some bolt up components that will work. You guys led me to a source for faster rear end gears, so know they are available.
It looks like that is what I need to use considering simplicity, weight, cost, and space. BUT, where is one??? There's one out there in the weeds somewhere, I hope.

I've got the 12 stacks built, and painting them now with hi-temp paint. They are just a "show and tell" thing and not practical at all, but sure have a wild sound. Will try to get my son to post a video in a few days.

Appreciate all you guys help and interest in this. I'm amazed at the all the e-mails and phone calls I receive, as here locally they were so abundant, we thought everyone knew of the old brutes.
I can't stress the fact enough that the old motors are NOT suitable for hard use, unless money for parts is unlimited, if you can find them. They are great for easy use and a conversation piece.
I'd like to see more of them restored and shown. They sure create lots of debate and are certainly a neat part of GM history.
Excuse the long winded rant.
Cayoterun

[b454rat]

Not sure if it's what your looking for, but I have a NV4500 that I can't seem to sell. But without special adaptors, not sure how it would go together.....just thought I'd throw that out....that thing is sweet BTW!!!

[cayoterun]

Stuck the stacks on today. It reminds me of an old motor out in the woods with trees growing up thru it. Sure has a wild LOUD sound tho. Will try to get a video in a few days.
Cayoterun

It looks like red overspray down low near the head on left side pic. Must be reflection from camera flash. ???

[cayoterun]

b454rat: Wish your tranny would work, but won't come close to fitting. I've got to get up in the 2ton-road tractor size and back in the 60-70s era to score one. I know they are surely out there, as I've drove them back then.
Thanks for the offer
Cayoterun

[89 crew]

Check this link if you haven't already. There is mention of some of the transmissions that were originally mated to it. This is a rebuild manual for the v6's and v8.
http://oeltd.net/Doc/GMC_Manuals/X-6A-01/

[89 crew]

Oh, one more link I found. This is a transmission shop selling adapter kits. For the 702
http://www.transmissionadapters.com/...%20&%20V12.htm

[cayoterun]

Thanks, 89 Crew. I had looked at these sources before, but always looking for additional interchanges that might fit.
Since you're in Kansas, you can savvy my farmerized, make-it-work mentality, mainly because of short supply and distance to parts sources.
Thanks,
Cayoterun

[cayoterun]

Bigger toys need bigger tools.
Always needed a front end loader around here, but never did get one. I didn't have any way to handle the V-12, change truck cabs, and stuff like that safely, so found this old fella at a fair price. It's a Case 530 industrial, age unknown, probably back from early 60s. It's worn out, but everything works. Good enough for me.

If any one decides to mess with a V-12, you'll sure need something this big, (bigger wouldn't hurt), to lift it with. The pic with a motor hanging was first trial. Rear wheels were about off the floor. Will need more weight on the rear to move around much, then there's still risk of breaking a front axle or something.
My 2,000# cherry picker wouldn't even budge the motor, except one end.
Cayoterun

[89 crew]

If you want to learn more about your tractor look at this.
http://www.tractordata.com/td/td479.html

[cayoterun]

Thanks, Crew! This old tractor will need lots of easy use and TLC. I think I'll name it "Puddles". Price of hydraulic fluid, It will probably get all the seals I can find tho. $10 a gallon here. Ouch! Glad I quit and rented out.
I have an 830 Case-o-matic wheatland my uncle bought new in '66/w 5400 actual hrs on it. Never been touched except a valve job in late '70s.

The people on this site are great.
Thanks, again
Cayoterun

[ed2552]

Our tractor would handle that with ease, it is an International 1066 Hydro with a loader with interchangeable pallet forks and loader, best purchase my dad made last year, everything works, awesome, A/c is ICE cold and it is my favorite tractor to use. We bought it from our neighbor who retired last year

[cayoterun]

Wanna' trade? Just joking. What's a 1066 hp rating? 100hp or so? I stacked hay with one a neighbor had. It wasn't a hydro tho. nice tractors.
Cayoterun

[ed2552]

Yeah, i think about 100-120, we also have a 1486, that is about 160HP i think. The shipping would be a NIGHTMARE for it, but it is possible, but we will NEVER trade that tractor away

[ed2552]

The Hydro is awesome, it is like a hydrostatic lawnmower, forward to go forward, back to reverse, the farther the faster, depending on throttle. It is nice for hay, when you hit a thick spot you keep the motor up and can still slow down, and not have to shift