The General Motors "Cammers"

Ford and Chrysler weren't the only companies playing with Hemispherical combustion chambers and overhead camshafts back in the 60's. Here's a look at what Oldsmobile, Chevy and Pontiac had in the works.
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[@byronmcelfresh2380]

When Mr. Mac retired from Pontiac, he got 1 of the OHC 421s, I believe the 3 throat injected 1. It went into his beautiful 63 Grand Prix. Seen the car in person with it at the 1994 PONTIAC OAKLAND CLUB INTERNATIONAL meet in Moline, illinois. It's sound was unlike any engine I had heard. Beautiful music to the ears.

[@TakeDeadAim]

You know, I kinda laugh when younger guys seem to think that "new" technology is really that "new". They seem to think that engineers back 50/60/70 years ago didn't know what they were doing or something. I always say that it wasn't the designs which were lacking, it was the materials and metallurgy which didn't allow some of their futuristic ideas to actually work. Wasn't until we came up with some new metals and ability to machine them that they could actually put paper drawings out on the track.

[@alt7488]

cost has a lot to do with it too

[@cardboardboxification]

Al T lead acid batteries at the time didn’t get you far, and still don’t today...

[@erikhilsinger9421]

@Curtis Fleabag but neodymium magnets tho.

[@davidmiller9485]

@@erikhilsinger9421 Dude there were charging station all over NYC for those electric cars. The used a tiller to steer (this would have been, oh 1904 or so) were black boxes and were meant for the ladies to go shopping in (I'm referring to an electric car that had the infrastructure to work).

[@richardprice5978]

@Curtis Fleabag time period for first working ev's please including experimental ones ie 1901 brand or name of investors / inventors as a ice engine isn't a new idea and had problems with widespread adoption ( probably because of horses where in use and or steam was thought at one point as the end all be all for everything but flying machinery ) too ps. not against ev's just a factcheck of the timeline and if you have had a stubborn old man / grandpa / know a older man you know how they can be about new gadgets vs there old trusty horse team

[@kramnull8962]

I remember Aries got big in the late 80's in tractor pulling. They were using a Boss 429 based solid aluminum block. Also a company called Rodeck. A big cube BBC design with no water jacket In the same lines with Kieth Black, just using other manufactures designs...

[@jeffbranch8072]

Pontiac's legendary Malcolm "Mac" MacKellar on the cover of that magazine! With all of today's computer modeling the best they can do for Pontiac cams is to merely tweak what Mac did with a pencil, slide rule, and the seat of his pants some 50-60 years ago. The OHC6 is a great engine.

[@AtZero138]

History Lessons with are Uncle Tony.. and Learning is Growing..

[@soonerstan56]

Sweet video Tony. I had an older friend when I was 16 who had a 66' Tempest with the OHC 6 and a four barrel and he could hang and even outrun a lot of V8'S and they would have to look under the hood when he told them they had been beaten by a six cylinder ! Makes you wonder what could have been achieved by the American manufacturers if engineering had won out over sales. Stan

[@MrTheHillfolk]

Only saw one in person once. I always liked em because it's different than a V8 and I heard they would run pretty good ! the Aussies took the straight 6s and had some mean ones too! I'm sure we would have ended up there if has wasn't so cheap at the time.

[@loganpe427]

Yeah, I had a friend in high school with a ohc tempest with that setup. He made hot rod guy's cry all the time, even called him a lier and wanted to fight! What a laugh! Oh uh, Mr Fleabag. My friend raced and beat some big blocks too, a 68 Camero SS with a 454 comes to mind. Not sure which tune it was. If it could have gotten traction he might've won but it would've been close. The Tempest hauled the mail, no doubt! It ran hi 12's to low 13's quarter miles consistently.

[@stevethomas760]

One of my best buds had a "baby GTO" OHC, 4 barrel , 4sp Tempest. He was ahead of the times.

[@aaroncone6778]

Kaiser/Jeep (Pre-AMC days) also had an OHC 6 too, back in the early 60s, (before GM made the OHC 6 in the Pontiac) in their trucks. I believe it was called the Typhoon engine. I've only seen one personally, & Jeep only made them for 2 or 3 years in the US, for the Gladiator J-series trucks. I've heard that they burned oil like crazy (piston ring issues), but the engine survived in Mexican & Australian markets (with lots of factory & aftermarket performance parts), up into the late 70s.

[@TheJRGJR]

Aaron Cone “Tornado”

[@aaroncone6778]

@@TheJRGJR Thank you!

[@genehart261]

I worked with a guy that had a Wagoneer powered with this engine. Not a good engine, but unique.

[@stephencrandellsr4915]

Used in the military jeep trucks 230cid

[@lysdexicsoftheworlduntie1881]

The Tornado 230 was a Willys design.

[@axleratio]

Those Pontiac 3 valve combustion chambers Tony was showing in the magazine could be called Mickey Mouse heads .

[@MichelLinschoten]

axleratio of they did that, their would be royalties to be paid I am sure

[@FACEBOOKS-WBDS]

OMFG!!!! DISNEY IS GETTING INTO EVERYTHING EVEN BACK THEN!!!!

[@the_car_guy5915]

*...PONTIAC WAS OWNED BY DISNEY...*

[@bandccoresohio]

Your mom gave Mickey Mouse head

[@robb5522]

The "3 flying toilets" look like triple Predator carbs all stuck together. Maybe they were some sort of variable venturi deal? Predator got that idea from somewhere after all haha.

[@chrismigl27]

Found Tony tubesurfin at lunch yesterday! My new gear head hero with a wealth of info. All I can say is thanks for sharing what you’ve learned over the years. I’ve always had a saying “you learn something new everyday if not you didn’t pay attention”. Well Tony keep the videos coming I’m paying attention! Thanks again

[@wileecohagen]

That Olds was designed for prototype road racing. The first iteration of this 455 cub in engine made 500 hp at 5000 rpm, 600 at 6000 and 700 at 7000 RPM. I’d don’t know much about the Chevy except that I’ve seen these pictures. I had a collection of magazines from the early 70’s onwards, and the older they were the more was engineered by the engine builder, thousands of racers trying different things to make power and make it live. But the 60’s was the golden age of factory development. Some of it began 8n the 50’s, but the 60’ saw improvements that were leaps and bounds above earlier designs. Also, the Pontiac straight six on the page with the 3 valve engine that had a blower on the six was the first engine Pontiac put in their Trans Am based on the early firebird.

[@andrewslagle1974]

pontiac called the in line 6 ohc the sprint 6 my aunt had one in a 67 firebird with a 4 speed .

[@albertgaspar627]

they were ahead of the curve...had they thrown it into their Ventura in 1973, rather than a Chevy inline 6...

[@jeffreyeichelberger6550]

My neighbor used to take me fishing in a Pontiac Firebird. I remember the hood said overhead cam on it .Cool car and something different.

[@billythebake]

Oh man, I had that issue of Hot Rod. Yeah, the sixties were the golden era of automotive technical journalism. They had 'how-to' articles on how to make tube dragster front axles, home brewed shifters, etc. And wild behind-the-scenes stuff from the manufacturerers

[@paulcombs-bomuse6172]

Thank you WDR for posting these rehearsals.

[@TheMot616]

Great throwback Let’s do a “throwback Thursday” every week ? Perfect time to dig back to the cool shit

[@dextermorgan9703]

Thomas Mitchell everything on uncle tonys is throwback😂

[@alexb.1320]

To be a fly on the wall in those engine design discussions and subsequent prototype analysis.

[@robd7365]

Great video. Glad you brought up the olds/Pontiac versions! Many guys my age and younger forget that buick/olds/Pontiac were heavy, heavy hitters in the performance world. Olds started slipping in late 70's, putting random cooperate motors in their cars, and by the eighties there was no brand difference...you couldn't tell one GM car from the other if didn't have a tag on it. My grandfather almost didn't by his delta 88 until they agreed to pull the coorperate 350 chevy and put the rocket in it. "If I'm buying an Oldsmobile, I want an Oldsmobile". Beginning of the end, and GM killed off some once great brands

[@skylinefever]

On one episode of Hot Rod TV, I heard that Olds designed their engines to produce less smog, and were able to delay using air pumps until 1973. Also, it was said that they didn't lose as much horsepower while being made to tolerate lower octane unleaded fuel in 1971. To me, GM should have built more Olds engines because they knew smog tests weren't going to get any easier, so it would be nice to make less smog upstream of smog devices. Even if they cancelled Olds, they should have used some of the Olds design characteristics in other engines. I also found it interesting to see how many Olds 307 engines got carbs sfter most other GM engines got EFI

[@brianstough5286]

Same "legislation" "legalistic" things that "killed off" and broke up MA BELL. Everytime GM was recognized as the "industry leader" - FOMOCO would threaten legislation to "break up GM's monopoly". GM did not go after them in the same way, instead, just kept hiring good (GREAT) engineers for a 'more honest' competition. Unlike FOMOCO, GM did not buy railroads and smaller companies and shut them down to eliminate competition. Lots of history there that gets buried by the "noise". (SHHHHH - don't bring up the relationship Henry 40rd had with Hitler - that is even more taboo)

[@ronalddaub5049]

The f85 aluminum 215 with a hydra-matic would run like hell when I was in high school I love that little car except it had the typical cooling problems after a while

[@christopherlucy1772]

Rip: Pontiac&Olds

[@UsefulEntertainment]

Also crack the timing cover off that olds ow43 DOHC and you will find no chains or belts, it uses a series of 10 or 12 gears. All fascinating engines but I think olds was always miles ahead in the practicality and reliability department.

[@duckslayer92]

Love this "never/almost was" stuff. Love the channel keep it coming!!!

[@wayneo7220]

Man Tony, you find some great engines. Makes me wish I never got rid of my stacks of car mags, '68-~'74.

[@rustedhorsepower5132]

I remember reading GM had 5 prototype hemi-engines with mystery cubic inches sitting in a museum somewhere. I read this in the 90s in hotrod, chp, car craft, or popular hot rodding. I can't remember exactly, but I do remember reading the article.

[@edwardskaggs8746]

There is a ball stud Hemi that has been restored and installed in a Sox and Martin Plymouth Barracuda dragster in The National Auto and Truck Museum in Auburn, IN. it is one of only two known to exist...

[@UncleTonysGarage]

This is that engine. Only complete one known to exist

[@dianelee2100]

I always learn a bunch, thanks Tony. Got my 1969 AMC 390 with group 19 intake and 1970 port and polished heads. You would love it, it's a beast pushing close to 450 HP. ON PUMP GAS. I love your channel. Neal

[@kevinmonseler3592]

Sweet bit of information about early technology that I had virtually no idea. Thanks for that uncle Tony this video really impressed me.

[@gordonwelcher9598]

Your videos are the best for explaining things. They are not over simplified and have plenty of detail on the subject. No ridiculous reality show showmanship or useless flashbacks and fillers. Another channel in a "yard" comes to mind. Thanks a lot for your time and effort.

[@brianglade848]

In your live stream from last night, thank you for the shout out for my daughter Autumn, and I heard New York come out when you said coffee, you rock Uncle Tony

[@prancstaman]

That toilet bowl carb (3 barrel) is most likely a pressure carburetor. Look familiar to me because that's how they look on aircraft engines. Could be a modded aircraft one to run the engine or designed for the engine from scratch for automotive use. They are pretty much self contained mechanical fuel injection setups with external fuel pumps to feed them. If that is what it is, LOL.

[@aleugene55]

uncle Tony you are right, I have ab 67 firebird with the 6 OHC and it does move, it's my daily driver in the summer. Love your videos keep up the great work. Thanks !

[@Danceswithempties]

Thanks for that piece of history! That was some of the stuff I never got to see as a kid from the 70"s...

[@rodney1818]

Jay Leno actually has a firebird convertible with the overhead cam 6 in it process of restoring it right now

[@crazytrain7114]

There's one in Torrington, Ct, runs great, still looks new, but it was never restored

[@willefixit]

@@crazytrain7114 wow up the street like to see that im in terryville.

[@crazytrain7114]

@@willefixit He goes to the Downtown Torrington car show every year. I actually walked by it twice, thinking, well, thats a nice bird, the the hood was opened!

[@w41duvernay]

Where IS the vid of that?

[@piewagn]

@@crazytrain7114 Used to work at Timex in Torrington......lived up on Tyler Lake.....

[@wvangus82]

I have one of those "Exploders" with the 4.0 SOHC. It was a good car if you ignore the fact we put 3 different junk yard engines in it, lol. It did make it to 300k miles before i flipped it in a creek and totaled it.

[@killerta87]

I love learning about things from automotive past like this! Great video Tony, keep it up man!

[@napoliansolo7865]

I agree with what you said about car mags going to crap in the 70's. When I was a little kid I'd find friends who's dad had a stack of old Hot Rod mags. They weren't about buying this or that it was about going to the wrecking yard and finding stuff you could fabricate to your car. I learned so much more about cars this way. It's kind of like watching your channel. You talk about stuff and ideas that you can use on cars. And learn that some "new" ideas are actually old ideas. Thanks for your content.

[@josephtaverna1287]

Who knew Uncle Tony did as always tone you and Uncle Kathy have a great night

[@colemanadamson5943]

Tony, I worked as a car/light truck frame man (replacement, straightening, etc.) and front alignment man in the 70's & 80's. I've been out of the business (changed careers) and retired now and really have little interest but your presentations are so good I just have to watch. Nice job.

[@flyonbyya]

I worked in a gas station in Michigan in the late 70’s, and checked the oil on quite a few of the SOHC Pontiac 6’s. I knew what it was... but really didn’t appreciate and realize until many years later what they were. Great VID !!!

[@KennyInVegas]

Great info........ You are so full of interesting information. I really appreciate all the time and effort you give towards your channel. Thanks from Las Vegas!

[@maynardreed4036]

Thanks for this video. You don't hear of these experimental engines. Glad some one knows the history.

[@TheMrmmkkpro]

Cool stuff, I owned a 1967 firebird with the ohc 6cyl. I was young pulled it out installed a BBC 468, wish I would have kept that little engine, I think it had a Quadra jet 4bbl on it. I still have several Pontiac 455 and 400 engines, have drag raced Pontiacs for ever. Working on a 1990 ZR-1 right now, my new project. Love your work, those magazines are pure gold. 👍👍🏁

[@patricktisdale9603]

You are the best sir,and thank you for sharing ultimate wisdom without even having to do so.My hat is off to you sir.

[@montanagetaway6175]

Love it! Old stuff is cool. Fun to look back at what was being thought of 50 60 years ago.

[@robertheymann5906]

Love hearing about the history of motor development, thx Tony!

[@SchnelleKat]

Something I never really knew about! Thanks for sharing Uncle, Tony!

[@raynyhus2026]

I had a 64 jeep wagoneer the had a 230 tornado in it. It was a single overhead cam with a crossflow valve arrangement. Great power, dependable, but no matter the speed it always got 10 mpg. Your right about the old magazines, i had a hot rod that outlined a 500 hp chevy 250 straight six. Cool stuff

[@chevydyall7619]

Love this sort of info Tony. Really good and thanks for sharing

[@scottk0623]

Too cool, thanks for showing us. I had NO idea some of that stuff existed

[@dukecraig2402]

I'll bet you that fuel system you were inquiring about operates the same as the Bendix/Stromberg "pressurized carburetor" used on US piston aircraft engines of WW2 era, also known as "injection carburetors".

[@jeremyhanna3852]

Yep was also used on sprint car engines of the 1960 era

[@kirkbarlow4909]

Thanks again Uncle Tony.

[@The_Future_isnt_so_Bright]

I have an old book that explains in detail what the engineers were doing to remedy fuel vaporization and distribution problems. The coolest thing was the use of glass intake manifolds with lights so they could view the fuel distribution problems with inline engines. Atomized fuel would always enter the ports nearest to carb, liquid fuel would always go to the last cylinders. The experimental engines section is very interesting, Ford tried to build a spark ignition diesel called a Proco engine, ford also built a Sterling engine in axial form that used R-12 refrigerant as it's gas, and a steam engine that used R-12 instead of water. The book also goes into detail about odd fire vs even fire engines and the power overlap issues.

[@skylinefever]

I believe this is why many American inline sixes were cancelled in the 1980s. If the engine had one carb, cylinders 1 and 6 would always get a different afr than cylinders 2 and 3. Some inline experts built twin carb intakes to replace single carb intakes, and some foreign cars like the Datsun 240/260 and Triumph TR6 were built with twin carbs. There were 2 other options to get around the air fuel distribution problem: 1. Use multi port injection on an inline 6. That was an expensive option back then. 2. Use a carb or TBI on a V6 engine. Some companies also used V6 engines because they could also shared with FWD cars. Other companies used them so that the overall vehicle length could be shorter. GM would sell their 2.8 V6 to Jeep in the early 80s for this advantage. When Nissan introduced the 1986.5 Hardbody truck, they used a TBI version of the MPFI V6 found in the 1985 Maxima.

[@chrispag8720]

Cool stuff! Of course I wanted that W 43 in my 71 Cutlass, ha! My 2009 Mustang had a 281 V8 with 3 valve sohc heads, and the arrangement was 2 exhaust and 1 big exhaust valve per cylinder... strong, reliable motor.

[@vtwinaddicted5852]

Outstanding video Tony!!!

[@EarlSinclair97]

I know it's not real Old School tech, but I always thought the codeveloped Lotus/GM GenIII 5.7 LT5 was an amazing OHC engine.

[@henrykrinkle8770]

I drove one of those 4 cam vettes. 405 horse, neat car for the late 1980’s.

[@thequesomanishere]

Love this type of content. Super cool keep it coming! 👍

[@AryDontSurf]

That's so cool you keep the old mags, a local guy threw out a bunch a long time ago and I took as many as I could. That's where I learned about the A-833 Chevy truck thing. Lol!

[@danielscott6787]

Senior year (1984). I took paddling- instead of paying $$- to pay off my library fine before i could receive my diploma for all the 1960's Hot Rod & Car Craft magazines i checked out and "Forgot" to return.

[@AryDontSurf]

@@danielscott6787 that's dedication to the craft. Lol. Those magazines were full of great ideas. Practical ideas at that.

[@danielscott6787]

@@AryDontSurf still have them today.

[@AryDontSurf]

@@danielscott6787 worth every /swipe from paddle I'm sure. Anything cool in there about Inline sixes?

[@randymekalet4244]

Wow!!!!! The things I didn't know! Thanks UTG. 👏

[@t.t.6398]

Damn! Wish this video was out about 30 years ago. I drove a truck for Jasper engines and transmissions and one of my customers ran Pontiacs in NASCAR in the late 60's. He had Ram Air 5 heads and intakes for the Pontiacs that he was given by Pontiac and told not to let anyone see them. He had ALL sorts of oddball off the wall Pontiac stuff! That supercharged OHC 6, he had 3 on engine stands! He could of told you exactly what that was no doubt! I can't remember his name any more and he passed away years ago and I've no idea what ever happened to his collection. Which reminds me of another customer who I had that was BIG TIME into Mopar! In his shop in Laurel MD he had 14 426 HEMI engines all in running condition! He owned 2 original HEMI Darts! He had old 60's era funny car bodies hanging upside down from the rafters in his shop! I really wish I kept in contact with those guys. God only knows where all that cool stuff is now.

[@gmcnelly2468]

Back in the 60's, I remembe HOT ROD magazine did a series of articles on GM's experimental engines. My mother thru my collection out when I went to college. The first turbo engine I remember is the 409 chevy with dual turbos. It used stock exhaust manifolds turned upside down!

[@werewally3156]

heck yeah uncle tony, i wanna hear about factory hottrodding too. they did it best.

[@jamest.5001]

I got a stack of the old hotrod mags, from the 60's early 70's man you had to know your geometry to design that Chevy with the extra pushrods!! That thing us crazy!!

[@paintnamer6403]

I remember the OHC Pontiac six with the Q-jet how they would sound different but cool when under hard acceleration.

[@albertgaspar627]

that sound may have been the spread bore design of Carters and Quadrajets?

[@charlesvan13]

When I was a teen in the 80s, I had a ford Motorsports magazine, with all the Ford manufacture racing parts. And it was all blocks, head, etc. based on the Boss 429.

[@albertgaspar627]

yep, the 427 was an expensive block to make, and doesn't like to be bored past .030" inch. So Ford made the Boss-9 and never looked back.

[@charlesvan13]

Being 17 without a lot of money, I just built a measly 302 for a Mustang. But in 1987 it could still pass just about everybody, in an era of slow production cars.

[@grantw.whitwam9948]

I never new about the OHC 6 until I saw one at the A & W where we hungout for a while in 1972.

[@thepsychobilly88]

Thank you for this Tony! I have an old (1978 or 1982) issue of Chevrolet performance magazine that had a 5 or more page article on Smokey Yunick. According to the article, Smokey and GM had experimented with OHC V8's as early as 1955 or 56. I'll send you the magazine if I can find it in my stash :)

[@johncasteel5146]

I just found your channel, lthink your channel and knowledge about Dodge and Chrysler are awesome !!!!

[@AzureKnightmare32]

Mesmerizing. Liked and subbed. Keep 'em coming, Tony!

[@mromatic17]

i just got into zip ties and bias plies and im starting to notice that all my favorite you tubers are fans or friends of his! i love his videos they’re hard to follow sometimes but always hilarious!

[@Agent-sb5jy]

I imagined UTG before I found it. This is America ... he's gotta be out here somewhere. We've made too many cars here in Michigan for this guy not to exist.... FOREVER 🤘🏾

[@codymoncrief8478]

The lifter/camshaft design that AMC put into the 4.7 v8 Chrysler used was pretty neat.

[@DanielTurner-cf8rr]

Interesting stuff. I remember the Pontiac ohc six but I didn't know there was so much more development going on in the sixties. I've done a lot of work on older Mercedes and always thought they were light years ahead of the big three in this area but apparently not. I like these kinds of videos, the development and the lesser known engines.

[@wjanis1]

In the 60s Marvel Schebler Tillotson had and fuel injection in test for GM. Installed in a Corvair. I worked in a low production machine shop it visited. Couple of years later. Never been able to dig up more on it.

[@markgatlin7642]

New a guy in high school in the late 70s,drove a 56 chevy beater daily, with a Pontiac OKC six ,cool engine.was just transportation to him.

[@chrisliberty1773]

Love....love!the history lesson! I had a buddy back in the day with a Pontiac Tempest w/sohc6.....waaay cool car.

[@cskibb67]

Man did I jack up my dads old hot rod mags. from the 60s 70s when I was little...checkin out funny cars, crazy pics of sideways slingshots and fuel altereds on fire !

[@davidprevost6670]

Thanks for the history lesson UNCLE T.

[@jackieliner3812]

I had a friend back in the early 70s that had one of those Pontiac Tempest with that ohc 6 cylinder and the q jet 4 barrel carb, it was pretty unique at that time, that would be a very rare car today.

[@bilbobaggins4710]

I live the tempest

[@geraldmartin3625]

Awesome. Thanks Tony

[@82lube]

Thanks, Most Excellent Episode.,,,, A bunch of Cool engines

[@zazz69ed]

just want to say thank you for sharing all your knowledge and being honest with what you do or dont know. very genuine and that is why i love all your vid's. i know you prefer mopar but you do not bash any of the others out there. the difference in integrity and class vs alot of other channels. this has me wanting to go out and grab something i can rebuild with my grandson now. he is young but he would love tearing down and rebuilding a car that in ten years he could actually drive and own. i have owned many brands of vehicles. fords have been my first love and mopars the mistress. i love em both. i did own a buick electra limited landau that was my pimp mobile ..1977 with red/orange crush pillowtop seats, fake chrome and wood trim on dash and room for 8 in front and back. funny thing was i never knew till i had electrical problems with the alternator that it had a 403 ci small block in it. i had always thought it was a 350 lol. she was a fun car for a young teen to drive and she gave some people issues when they looked over and i was still there waving at them. i think i got her close to 105 on top end once .. but big boats like that get a bit.. well.. lets say the suspension is a bit sketchy. i thought that was super fast for a car of that size. she was no torque monster like my grandpa's 68 cadillac coupe deville, i think that had a 500 in it. had a lot of great memories and seeing the old mags there made me all warm and fuzzy. thanks again.. keep being you. and if i am off a bit on some specs forgive me. it was a longtime ago and i never was a gearhead but loved cars.

[@tomlappin9657]

Great info, Uncle Tony

[@19ADAM80]

You tha man Tony.., I grabbed me one of your stickers too. 👍🏼

[@bossford1966]

Thanks for the video tony

[@Rakatawhat]

Wow!, didn't know these engines existed. cool info

[@aljackson7330]

Great info Tony!

[@user-yp5fp8gn7o]

Great job presentation wise and informative for we gearheads. Thanks again Rich/San Jose

[@user-yp5fp8gn7o]

My bud had a 1968 tempest with three on the tree and the Canadian made overhead six and though we never got around to putting in the four speed we dreamed of we did have a ball with it and they were fairly bullet proof. As i recall it had a four barrel and we also dreamed of putting jag style side draft three pieces on his but no money. He could outrun my 318 1965 satellite with little effort im sure with a little money and proper shop you could easy pull 300 plus h/p outta one of the damn things.Rich/San Jose

[@garymckee8857]

I had a Pontiac Grand Prix GTP 95 model that a 3.4 double overhead cam engine it was like a rubber band engine. Thanks for the history lesson Tony.

[@kevinmonseler3592]

Was a great engine to look at and have under the right foot..... but to work on lol a bit of a chore until one learned the secrets. But it was quick and cool looking

[@MikeD-ey3sx]

Thanks for sharing, real good stuff !!!😃😃

[@DwayneRouthierJr]

Uncle Tony, you should consider doing a video on the Ford GAA. It's a 60 degree ,1100 cube, bevel gear driven DOHV V8. It was initially a V12 ment for aircraft but made its way into tanks as a V8. The reason I think it would be cool for you to do a video on the GAA is because it was developed and semi mass produced in 1939 to the 50s I believe. It's such a huge contrast. The general population had 60 or 85 hp flatheads while behind the curtain they were designing shit like that. I also heard it made its way into a couple dragsters in the 60s and 70s. Just a thought. For the love of engines.

[@davidrayner9832]

Jaguar cut 4 cylinders off their V-12 and it almost shook itself to bits. For balance, a V-12 must be 60 degrees and a V-8 must be 90 degrees. Ford's cut-down V-12 would probably do the same as the Jag. Might survive in a tank but not in anything that gets some revs.

[@DwayneRouthierJr]

@@davidrayner9832 it's an 1100 cube motor. Over 1000lb ft of torque off idle and 500hp at 2600rpm. There are plenty of 60 degree V8s that have worked. Just because Jag couldn't do it, doesn't mean it couldn't be done. I believe Volvo is making a high hp 60 degree V8. The ford GAA is what it is, and what it is, is one seriously badass engine.

[@davidrayner9832]

@@DwayneRouthierJr Perhaps 'shook itself to bits' was a slight exaggeration on my part but if it vibrated at all, Jaguar would think it a total failure. There may be some 60° V-8s out there and they would certainly be OK. That's just OK, not perfect. You'll probably find they've been made that way to fit into a certain space just like locomotive engines (I'm a railroad engineer) are 45° Vs. Why? Because in a loco, there's plenty of length and height but very little width. The 8s and 12s vibrate but the 16s are as smooth as silk. Why? Because the number of crank throws times the degrees between them need to total 360°. A 45° V-16 has 8 crank throws and 8 x 45 = 360. The Brits made 360° parallel twin bikes for decades and they went OK but we now know that 90/270 is the magic number and almost all parallel twins are now made that way. 90 + 270 = 360. For an opposed twin like a BMW, it's 180. 180 x 2 = 360. For a V-8 with 4 throws it's 90°. 90 x 4 = 360. For an inline triple or 6 with 3 throws, it's 120°. 120 x 3 = 360. For a V-12 with 6 throws, it's 60°. 6 x 60 = 360. It really is that simple. Harley-Davidsons vibrate like crazy because they're a 45° V-twin. Why? Because back in 1909 they didn't know about such things and that's all that would fit in the frame and now tradition dictates they can never change it. Ducati on the other hand, doesn't care if the front cylinder sticks out of the frame. They went with 90° because it's correct. So do Honda and Suzuki on their V-twins that go fast. Their cruisers are 45s, just like H-D. The tank engine you mention is probably a 60 to fit inside its bay. As for its performance, I'd expect nothing less from something of that size. At 18 litres, it's about the size of an engine you'd find in a Kenworth or Mack so of coarse it makes tons of torque. What really surprises me about it is that it's American and has DOHC (the subject of this clip). Read my comment below about Arlen Ness. Getting back to Jaguar, there's a clip on You Tube about the development of their V-12. The interviewer makes comment to the two men who designed it that it's Jaguar's first SOHC engine. They answer yes, prior to this they've only ever made DOHC engines. If an American company were asked if this was their first SOHC engine, they'd say yes, prior to this we only made pushrod engines.

[@DwayneRouthierJr]

@@davidrayner9832 I'm not trying to be rude but you are completely missing the point. The GAA was produced in 1940... Think about that. 1940. A true DOHC V12/V8. At that time the most advanced engine was the SOHC Rolls Royce Merlin. In 1940 Jag was only 5 years old, still producing PUSHROD 6 cylinders. In 1940 there were few pushrod US made engines, it was all flatheads and ohc. In the 20s and 30s the US had a lot of SOHC and DOHC engines.... Duesenberg, Packard, and Cadillac to name a few... Decades before jaguar and Ferrari even knew what engines were let alone OHC engines. So in reality Ford made DOHC engines before they ever thought of pushrods.

[@davidrayner9832]

@@DwayneRouthierJr I just Googled it and yes, Jaguar did make pushrod engines. I would've thought the word of their two great engine designers was gospel but apparently not. Perhaps that was happening while they were still at Coventry Climax. In any case, you mentioned an engine that's a 60° V-8 and I said 90° would've been better. That's really it. I don't doubt they were very advanced for their time and very desirable today for someone with a love of engines. I can think of lots of things I'd love to put an engine that big into but I doubt I'll ever see one. Now to OHC engines which is what this clip is about. I know there've been OHC engines made in the US but they all seemed to die a death. Pontiac made an inline 6 that I know of and I believe Chevy once had a DOHC engine in a Corvette but all the American OHC engines together are about as common as pushrod engines anywhere else these days. Ford did half a job with the Cammer and Chrysler were about to go one better, like Kawasaki did with their 900 to Honda's 750, but both were banned. Too bad because it seemed to put the kybosh on OHC engines for many decades until Ford broke ranks a few years ago. I wonder what GM and Chrysler think about that. When John Bloor began making Triumphs after decades of absence from the market, they had OHC engines but when Polaris began making Indians after decades of absence, they had pushrod engines. What, they could make an OHV engine look like a side valve engine for nostalgia (I'll bet Willie G. is kicking himself for never thinking of that) but they couldn't put cams under those faux finned heads? Come on.

[@keiththompson7280]

MR. Mac got a 1963 Pontiac Grand Prix with a single over head cam 421 S D short block , an a re-work three two's intake. it had 10-1 or 10-5 compression , the artic I read stated it put out 470 hp for the street verson

[@b.s.adventures9421]

My first memory of a car was my moms 1968 Pontiac tempist with that ohc inline 6.

[@thehemiolds455]

It's time somebody talks about this experiment engines. I got to say that hemi olds would be a good torque monster. Good video 🤙👍

[@keiththompson7280]

The three crab with the timing belt off the rear of the engine, the intake looks like the S.D. 421 bath tub intake, and the lines going across it are layers ,the intake chamber is adjustable . the first of the tunnel rams.

[@flyonbyya]

Don’t ever stop makin vidz !!!

[@357coonan9]

Old school is the only school!! 👍 thanks teach your the best!!

[@geesss8675]

Very good video uncle Tony

[@stephenvelden295]

The Repco Brabham F1 racing engine (in the 60's) was built on an Oldsmobile V8 block. It had one overhead cam per head.

[@racer67]

I have that issue of hot rod! I have a collection from 50s all the way thru 60s 70s 80s 90s up to mid 2000's!

[@Welcometofacsistube]

Racer 67 very cool. I have been collecting automotive magazines since the early 90’s

[@adrongarretson6195]

I remember having a Hot Rod Magazine when I was growing up that had a dohc 350 Chevrolet in it

[@cordiepowell3046]

C4 corvette, designed by lotus, built by Mercury Marine ( which later redesigned the engine for nautical use) see www.mercuryracing.com/sterndrives/engines/1650-2/

[@arthurdombroskie3083]

Very interesting info, thanks!