GMC 702 cubic inch V-12 ENGINE - another DOZEN!
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- เผยแพร่เมื่อ 29 ก.ย. 2024
- this is NOT one of my bettervideos..as a matter of fact, its pretty bad please check out some of my other videos about this engine. . sorry about the jerky camera, bad lighting.. too much of the "tractor" shot etc..
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My palms are getting sweaty and I'm drooling looking at this! Get a pair of these beasts up and running, then build a rat version of Ed Roth's "Mysterion"! That would be a jaw-dropping work of freaking art!
good year 1953 , year I was like the 53 chevy , but 51 is my favorite year, had one when in high school ,had taken apart years ago to restore never did , sold it 3 or 4 years ago to a guy ,it was all apart when I sold it, sad thing is he never done anything with it either , just found out he past away , hope someone will someday fix it up as always enjoy your videos thanks
What a channel. I love those old engines and commercials. I have a blast showing my 12 year old how stuff was built in the past. Now we are a throw it away society. If it does not work crush it or trash it. We are looking for older vehicles all the time to save them for the scrap yard. Keep up the great work. Thank you
For soaking seized engines, we always used a 50-50 mix of diesel and transmission fluid.
Hotrod in Australia running a modified one of these critters. Looks pretty wild!
ive seen video of one in Australia but if memory serves me ... its in a coupe ..or roadster? Personally I think it belongs in a truck thanks for watching!
1963impala2dr
Deuce coupe if my memory is correct
I think it was built by rodbods by Elvis in Queensland Australia
5:54 - what does that thermostat housing look like? lol
I subscribed just because of the name... 1963 impala... I've had 2.
im on my 3rd one .. had one when i was a senior in high school but it sure wasn't as nice as this one haha
@@1963impala2drWaylonWire My first one was past down in the family, a tractor trailer ran over me in it. My 2nd one was a SS and between that and my wife to be's 1966 mustang we got into too much trouble and we were too young. Now, I wish we had them both.
I'm still trying to get that V12 702 out of the hands of the farm up the road!!!! 7K and they still wont budge!!! that engine runs as well..
thanks for trying!
actually 7k is not unreasonable as they go.. I've heard of them going for 19k.. i'm glad I have one!
@@1963impala2drWaylonWire the more people that have the interest and funds the more its worth , the motor would be cool to have its just not something needed that would actually make a difference that matters . just saying . its kinda like auction sales , i always get a blast when i watch people out bidding each other and almost always paying more than it can be bought new with warranty . i am 50 and it took me the age of 33 to start realizing its time for me to focus my energy on doing things that actually help better this world as a whole . i use to be one of those people that wasted money so that i could feel better about myself , lets just say i woke up .
just for the record i dont mean the price they pay at the auctions , i mean the price they pay after they find out the item they bought need repairs that add up to or more then a new item when considering warranty included .
If you're talking about a fire truck in Colorado it's actually for sale now
The 12 cylinders of Christmas?
Ppp
Drove the missile emplacers when I was in the USAF in Montana and Wyoming, hauling the solid fuel missile stages of the Minuteman II and III ICBM's. Our transporters were built circa 60-62. Four speed, air shifted main, three speed aux box. Grossed out in the neighborhood of 170K with a MMIII on board. IF the mechanics had tuned it right, got the carburetors adjusted just right, we MIGHT keep 'em running for ten hours. The plugs fouled real bad, they'd backfire and bark, lot of time on the side of the road waiting for a replacement tractor. Still, nothin' sounds like a V12... Eventually, after 20 years or so, they replaced the things with a new tractor w/600 hp diesel with an automatic that would actually do the speed limit!
good info.. thanks!
"More people buy Chevrolet's than any other Car"...back when GM was an American car company.
Randy Green Yep. They should get China and Mexico to pay them subsidies instead of the American taxpayers. GM can kiss my ass from here on.
Siglaviking That’s a very weak argument. I can look at Canada and Taiwan and thank a God Capitalism is still alive in the USA. Socialism has never made ANY country more prosperous. None. Socialism is nothing more than the bastard offspring of Communism.
@@prevost8686 WTF are you talking about? Canada is one of the nicest places on Earth to live and it's one of the strongest economies on Earth. ALL of the countries with the highest living standards on Earth make liberal use of socialism. The Netherlands, Norway, Sweden, Switzerland, Australia, Denmark, Canada, Finland... etc.
It's amazing how badly people can be brainwashed.
@@PistonAvatarGuy every one of those countries you listed are overrun by "migrants" and have outrageous taxes. why is france rioting right now? hmm?
@@frigglebiscuit7484 A) The "migrant" issue isn't even remotely related to the way the economic systems in those countries work. The immigration problem was actually created by people who were trying to cause the "welfare state" in those countries to collapse, but they don't even understand the first thing about how that system works. The problem also exists in the US (I live in a state which borders Mexico) and there are people who want to make it worse.
B) Those taxes cover things which we have to pay for out of pocket and drastically reduce the financial burden on the working class, that's why those countries are so prosperous. For example: Adopting a single payer healthcare system in the US would save the American people hundreds of BILLIONS every year.
It’ll be fun for sure. Let me know if you need a Quadra jet. Haha
that 12 will swallow a quadrajet and spit out the bones....
didn't Militarychevy modified an intake to accept a quadrajet for Crustine? i need to go watch those videos again.
I get a kick out of your little skip. I guess you are telling the world that you still got it. I see you guys are getting a little taste of winter down there. And it never fails, You buy bits and pieces to build something, then you find a complete one. It's like when you throw out or give something away, you need it yourself next month. Anyway, thanks for sharing and MERRY CHRISTMAS to you and your family Ken.
Love those old car commercials
If you are seeing an uptick in views with this one, it is probably because Good of the Land just had a video with this engine in it. Just an FYI because it started popping up in my recommended after watching his. Best!
Great video Ken. Wish I was closer so I could drop in and help on that v-12. That would be a lot of fun. 😎👍
Only thing better than a Running 702 GMC...is "Two" Running 702 GMC's....😁👍🇺🇸
What...another V-12?? Man, hook them end to end and the only thing it won't pass is a gas station! 😆 lol.
But seriously folks, you are THE most unique man I have EVER encountered....bar none!
✌😜
I would love to see it in it's original intended vehicle...a tractor trailer. I would pay to see an 80,000 lb gvw gasoline engine semi rolling down the road. The US Army had a 100 ton tank built in the 50s with an 1100 cubic inch v8 gasoline engine. Some old railroad switch engines had gasoline motors. Everyone now thinks only diesels are for heavy haul. Gasoline engines can be heavy haulers too. Not to be forgotten. Nice job though. You're doing a good job. Thanks for the video.
I gotta be honest, I'm 64 and worked on many cars in my life and I never knew GMC built a V-12, course I never seen a bunch of things, lol. I been watching ever since. I do love me some rat rods, oh yeah. Gonna be a wild one when ya get to drive it the first time....
My excitement could only be greater if I was the one doing the work!!!
These would be really great engines with all the new goodies they have now
I can't find anything like this can't even find a 454 anywhere
Yep I'm excited about it turned out perfect thank you for the video
They made a Packard distributor for a straight 6 with dual ignition . So it has all the plug wires in a circle , and 2 coil inputs . The rotor has 2 outputs on one side , with one , staggered back . Sorry , I dont want to give you this one , its here in memory of an old friend who hung it in his shop .
I understand the twelve cylinder is actually two six cylinder engines melded together. So Ken how bout melding two twelve cylinders. Wouldn't that be something. Lol.
that is a total myth. it is one solid block, not two v6s.. a common misconception made by many. in my crazy head, i have considered two of these coupled end to end so they run in unison haha
Detroit Diesel has bolted 3 V-8's.
2 V-6's and a V-8, to make a V-20
@@1963impala2drWaylonWire it's not a "total" myth, yes it is a single block all cast as one but it was designed like 2 V6 motors married together. Hence the four heads. The only thing truly unique is the crank, block, cam, and most likely the distributor.
haha yeah...the only truly unique parts are the Block, Cam, Crank and distributor haha.. isn't that enough!? haha.. I guess the reason I said that it is a total myth is because I've had probably 50 people tell me that its two 6 cylinders "welded" together... when they assume that.. i wonder if they consider how the crank would work and if it too is "welded" together... but I know what you are saying and I guess I need to do a video showing my service manual in order to educate people as to how the engine is really made. Thanks for watching Mr John and thanks for your interest in this old piece of history...
Now that's what I call a long-block!
Just came by for the commercial ,thx. Bye now.....
I thought from the thumbnail that the engine would run without an head so we could see the pistons moving
you must have a garden,and are growing these 702's from seeds!! want to hear this run beside the other 702.
Hey buddy I was missing ya and had to watch some fun video!!
I sure do not miss snow blowing in the western, NY area, SC now
Thanks for answering. I'm a new subscriber and I'm thoroughly enjoying your videos. Y'all take care and God bless.
thank you and Welcome!
Check out the Thunder V12 web site. They are in Evansville, Indiana and sell mildly modified GMC V12's. They have a custom ground cam, and an electronic distributorless ignition system, making about 450 Hp.
im going to include those sites in a new video.... thunder and 6066guy
not water running out of engine. where i come from we call that money
By the way,how much is a rebuild able 702 V12 long block worth these days?I really like to see guys like you bringing these engines back to life.Great videos!
there is an outfit that rebuilds them "thunderv12" they will sell you a core with NO guarantee that it isn't cracked for $4000.
The one with the broken block. I don’t know where the problem is but if it’s in a cylinder would it be possible to remove that piston and the one across from it for balance? Make a V10? I’m sure it would still have enough power. Just remove the rockers and leave the valves? Am I an idiot? Lol
well, I would'nt call you that.. sounds like something Id do haha
Hey Waylon, couldnt figure out how to message you this, but i just saw this on craigslist and thought you could save it. sacramento.craigslist.org/pts/d/genoa-gmc-702-v12-engine-1950s/7121031722.html
road trip!! haha
Next you should get an GM EMD 710,
They have 11.6 Liters of displacement per cylinder, you can get them in a V8, V12, V16, or V20 variant.
i'll get right on that
I tought you would turn it on while without cylinder heads
All of the old Chevy commercials are great to
Somebody needs to tie that man down before he builds again! Happy Holidays Ken . . . . Rog
Since your doing Christmas wishes grandpa i will take the non running one. just put it in Santa's sled and he'll drop it off at my place.
you got it!
January should be exciting to see what happens. Hope you post something--anything before Christmas. We appreciate you
2m in I know for sure somebody's got a good life.
Now that would be a real treat, to hear two of the big 12s running at the same time ! 😊
Thanks for sharing and take care. 👍
It's the same engine as the Elvis hotrod/ ratrod that was in the first part of Mad Max Fury Road.
But, the engine seen in the movie was just a cast of the 702, since one of the crew spun the main bearing in it before filming began, and that cast sat over a regular old 350sbc. But, the Elvis car did have a running 702 when they bought the car.
Looking forward to watching!
I don't know which v-12 vids are about this engine...you have 2 , right?
i have two blocks, and a runner
He's crazy just like me, only l lost everything but l enjoy the show.
who is crazy?
It will be amazing if it has good compression but the unknown is the excitement
Sorry you lost that dis. Part good luck
lube er up with some Marvel mystery oil and start on it next year...
I would like to see a completely rebuilt 702 V-12 tucked under the hood of a 47-49 Oldsmobile or Pontiac Sedanette with 6 2 barrels mild cam with a 6 speed Tremec behind it!.
the engine is 4 ft long so it doesn't "tuck" under any hoods..plus it weighs 1490 lbs without fluids.... as for a cam, those engines red line at 2400 rpm. they are all about torque, not horsepower and they require a semi truck transmission.. I'm running a semi truck Eaton Fuller 10 speed.
Thanks for the reply! I'm 66 and I'm still learning. Thanks for putting these bad boys back together.I never even knew about these engines until I saw yours and a couple other videos.Great job! Fascinating!!!
A rare engine like that needs a special roll around engine stand. A Munster mobile type chassis would fit it pretty well.
There are railroads not running that much horsepower!
nope.. only 275 hp.. but 630 ft lbs of torque.. at i think about `1600 rpm lol
Dual Duntov Fuel Injection units, and twined HEI 6 cyl distributors with some custom Zoomies ?
I wounder how much oil it takes on a oil change.
16 qts
This IS gonna be a an Excellent Project AGAIN❕
I always enjoy old school engines
I have a complete rebuilt and running 702 if you’re interested
here is my complete running 702 th-cam.com/video/vtfPFLQMbUM/w-d-xo.html
I also have two blocks and enough parts to build another one
are you thinking of selling yours? do you have video of it running?
you can reach me at
coatesgrafting@gmail.com
thanks!
please email me. I'd like to know more about your engine.
yes im interested
I wish l had that man's energy.
what man? you mean "me" ??!! haha
The water outlet on that V12 looks like the male appendage, balls n all.
yeah, i mentioned that on instagram haha.. and I took the housing off and you would not believe what is under it!! waylon_wire on instagram .. or if you dont have an account, you dont need one.. just go to waylonwire.com and click on instagram to see my posts...nothing to download.. its free
I suppose it needs such a protuberance since it’s housing more than one thermostat.
@@traviscarr6536 no not really . its just a poor design beefed up with flaws in all the wrong places . the motor is basically a novelty item and cool to have , no real use for it except for that . that been said back in the day i wanted one , would have been so cool to show it off at a car show . now its a different story for me , i no longer think on that level .
@@traviscarr6536 Well you know, we all have that in common. In our own little way we're all housing more than one thing.
@@1963impala2drWaylonWire I did see it, I guess it's got one up on me.. it's got three.
If 12 is good then 24 is even better. Yeah I think I understand know.lol. Have a very Merry Christmas and a Happy New Year Ken.
Very cool Ken, I bet you have enough stuff to make another runner! Be interesting to see what sparks your creativity next. Be Well
That’s one bad ass chevyy!!
which chevy? lol
Kinda like cause it GM .......DETROIT DEISEL 12V 71 bit smaller gas
No matter how you go with it, that's gonna be a lotta hp and torque. And I have had several thoughts. Of course they're all insane but it's a lot of fun just to think about how you might go on this project. Loved the Chevy commercial. Can't wait to see what you do next! Preciate cha!
Wow!
I like the early 50's Chevy's a lot better than the tri 5's. My dream is to have one someday. About 7 years ago I passed on a '53 for $3000 and I've been kicking myself since. It was in good shape. I've also got a heart throb for the 1958 Chevy Impala. Something about those duel headlights.......
I wish I had a engine like that its old but its awesome could imagine what I could do with it it definitely would be in my truck love your videos and all the old trucks to reminds me of my dad 😍 👍👍👍👍👍👍
Build a drive able frame for both, but have only one running. I think that's what Big Daddy Roth did on the Mysterion.
if i do it, I'll couple them together so they both run
Cant wait to see V12 fire up the first time.You should make a dual v12 hotrod!
Oh yeah! Fun to come.... Ain't much of anything better than bringing one back from the dead.
hi ken I was born in 1953 March 10 exactly, love your old iron. Remember safety is number one in your garage.
Sounds like a great winter project Ken.
I still think it would be really cool to have someone do a porting job on a set of heads, and maybe find someone who can put a custom grind on the cam...you'd probably have a world-unique engine
You have to admire a guy who can look at just about anything and see a project! My parents' first new car was a '53 Chevy Bel Air with Powerglide. I can still remember lying on the back seat at night as we drove home from my grandparents', listening to that 6 cyl. purr.
Woohoo I can't wait. The only thing I love better than watching you guys get this old iron freed up and whirling is having my hands on it myself!
I just had my shoulder worked on the one I use for everything this morning so it looks like I'm going to have a lot of extra time to check in on everyone this Winter.
Years ago i drove a stretched tractor with a well drilling rig on it , from Ohio to Colorado . Quite a horse ! Would like to own one of those 702 engines.
Assuming you have enough bits and you can get it to run, WHATS IT GOING TO GO INTO? LOL Its going to be something with a L O N G hood.
Probably weighs more than my Detroit 4-53T.:)
Wow she’s heavy
I have never seen one of those before! 👍 cool stuff
So it's essentially two 305's?
nope! .. cubic inch wise.. it is the equivalent of two 351's but it is one block with 4 heads.. produced between 1960 and 66.. many were used to power the old seagraves fire trucks. they were also used in the cabover GMC semi trucks of that era as well.. thanks for watching
@@1963impala2drWaylonWire thank you!
you betcha Bill.. check out 6066gmcguy.com TONS of good info!
fuel injection set it and forget it vs carburate it and always have to tinker with it
of course you are correct..... i know the new technology is worlds ahead but.. i love tinkering with this old iron.. its not for everyone.. but it brings back memories of working with my Dad on old cars back in the 60s.... makes me sad that so many young guys will never learn how to set points and dwell.. thanks for watching my video.. I can appreciate different points of view :)
Fantastic garage
Done got serious now man... Big toys.
cant waite to whatch the videos please keep em rollin i truly injoy your videos
53 was the year I was born ,left that out of other comment
That would be cool if you could save it :)
Ken, get the axles from a 4 wheel drive truck and mount those 2 V12s between them . One connected to the front axle and the other connected to the back axle and go all TV Tommy Ivo. A 4 wheel tire burner.
haha.. cool idea but not mine ;)
Will be cool if able to take the 2 and make another running engine. As you said I am sure the are quite VALUABLE
Johnny B's Basket case projects inioo
Whooee! She's rough and needs some TLC! If anyone can do it, you can; as you're from House Creek! ;)
funny you mention that, just last night, i was looking at our old farm on google earth
53 bel air...my first car and no i dont wish i still had it...lol
🖒🤠
I worked on those in my younger days, pig iron beautys, they got maybe 3mpg in a jimmy dump!, I think GMC sold them by the pound! Good luck.
Gary Maris I am surprised they got that much was thinking more like gallons per mile , the international 345 V8 were getting the same mileage in a bogey drive twin steer configuration .
Maybe you need 2 of these side by side in your next build.
im thinking end to end
Well then going to have to start with a limo frame and it will be mostly all hood when you are done.
some nice coca cola loosen any rust in them cylinders if it has any
Very unique looking thermastate housing there hahaha. ..
I have seen tractors and motorcycles with two engines, but those V12's are already two engines..
1 block - 4 heads = 1 engine , but it is the same cu in as two 351 V6's thanks for watching!
I like it Ken. Can't wait to see what you do with them.
Man them are some ugly looking cars for the year of my birth! Glad I was better looking than they were!
just like us