Mopar's Doomsday Hemi

Chrysler built a state of the art 21st Century engine back in 1964, here's why and what makes it tick.
*MERCHANDISE:
Get Your UTG T-Shirts Here: uncletonysgarage.com/product/...
Get Your UTG Stickers Here: uncletonysgarage.com/product/...
*SOCIAL MEDIA:
Facebook: / uncletonysgarage1
Instagram: / uncle_tonys_garage
*WEBSITE: uncletonysgarage.com

[@gilbertfranklin1537]

Uncle Tony talking about the 60's like it was yesterday, man... back when engines ran sweet and strong without a computer in sight! HA!

[@djstl100]

Yea... he's still stuck in the sixties & seventys...it's all good. Those cars are alot more sexy.

[@sbfguy7793]

@@djstl100 he's not stuck, that's what he chooses to continue doing. No sense in going in the direction of garbage computers.

[@2K-Tan]

@@sbfguy7793 I'm all for old school car's and motors myself otherwise I wouldn't be here. But be real dude.. Saying computer's in car's is "garbage" is one of the dumbest thing's you could literally say, they've done nothing but been the opposite of garbage except for the earliest teething year's which are LOOOONG gone since the late 80's and early 90's.. They've made car's faster, more powerful, more torque, more efficient, ride better, handle better, be smarter at adapting to road conditions, get way more power out of smaller N/A engine's while still staying reliable, make engine's last longer by making the fuel trim perfect at all times so it's not rich or lean. Then finally the computer's themselves being constantly perfected to be more reliable and seamless over the years. I had a '93 Mazda Miata with the original 26 year old at the time ECM inside and it still worked and functioned 100% fine.. Sure EFI had some initial teething problems, that's not up for debate, but it's not 1985 anymore. EFI is *THE* way to go for big power and effciency.. Modern Electronic Engine Management technology has opened up WORLD'S of tuning and optimal customization based off the real world conditions the car is facing in real time and made car's *infinitely* easier to drive and operate. Whether it's as fun or not is the heavily debated part, It's a different kind of fun I'd have to say. I have a modern car, It's a 2016 Mazda MX-5 "ND" Miata with a 6 speed manual and it's a fantastic car, and most other people will agree with that statement too. Not all modern cars are dull and boring bro. You just have to look for them and find them. One thing we could probably both agree on though. SCREW EV's, Biggest soulless cars on the face of the earth. A 90 HP Honda Civic from the 80's is more fun than a 100K silent Tesla P100D Model S..

[@sbfguy7793]

@@2K-Tan I am amazed with how intricate your comment was and I 10000000% agree. You are absolutely right.

[@2K-Tan]

@@sbfguy7793

[@Fubarfighter]

Good history lesson. NASCAR was more interesting when the "stock" cars were somewhat related to that which was sold at dealerships. Keep up the good work.

[@sammolloy1]

I agree. What would win today if they were strictly off the showroom floor four door sedans? Continental? 300? Maybe one of those hot Camry’s?

[@snoman003]

Good vid, TY. I read a similar article back about 30 years ago about this motor. it was supposedly rated at 700+ hp at between 7 to 10k rpm. As you stated though, one of the biggest problems was the tappet carriers separating. Apparently Chrysler was working on curing the problem. However, along with that Ford was developing the 429 and Chev was working on the 428. The battle for cid + HP was full blown and so Bill France Sr stepped in and said "enough". This definitely would have been something for Chrysler to research and develop, given their past success.

[@Hardwarecity_Wordsmith]

“Roll up your windows!!!!”

[@blipco5]

Mike and Blaze ...Damn it, I was going to say that. Ya beat me to it. 👍

[@413x398]

@@stewartcampbell7794 Now we know EXACTLY one of the Zhivvy owners whose brain turned to mush, as I outlined above. You just can't make this stuff up.

[@ericprimrose7369]

Stewart Campbell Dafuq you talkin about dude

[@MattyWill1]

I'm not even a mechanic and have watched ever single video ever made on this channel.

[@dvdholguin337]

Interesting Stuff Tony!!

[@hanskinslo326]

That's because you have good taste!

[@w41duvernay]

knew about some of these engines, which is why NASCAR banned the Ford sohc v8s because there were other develops engines like these that would have been even faster on the NASCAR circuit that would have followed, and they were concerned about faster speed on the tracks making an unsafe environment then.

[@clintonflynn815]

So is a hemi on steroids a hemi-roid? I'll see myself out, thank you.

[@kevinnobody3052]

I think there was an old '60s race car that carried that name for a while. A long long time ago.

[@mitchfleming274]

I had a friend in my race car prep class that had a hemi he was building for his 68 bcuda..we called him that all the time.

[@stillbill6408]

According to your logic yes, and as a result, a real "pain in the ass" to Ford, GM and Toyota.

[@greenfuzz13]

@@kevinnobody3052 Yes, it was a 37 chevy coupe with a straight axle. Built by someone in the Bay Area and featured at least once in Rod and Custom around 1972. I think it was a regular at the Andy's rod runs. It's still around I have heard.

[@bentrishaleemartin926]

😂😂😂😂

[@OverlandOne]

Uncle Tony's vast knowledge of engines and engine history is incredible. I have been a Chrysler fan since the early 70's and I always learn something new in every video.

[@kevhauser8058]

Most people you interact with will never realize how knowledgeable and talented you are. Modesty at its finest. Cheers

[@UncleTonysGarage]

Thank you

[@stevenvirdenrasmussen-jone4671]

In 1964, I was an Industrial Design student here in Northern California and a big racing fan. As a project, I designed a bolt on head for the small block Chevy that was a 2 valve per cylinder DOHC. It used 396 valves and was a hemi combustion chamber. The intake port came down between the cams. The college that I was going to had a great machine shop and we (it was a project that involved two engineering students too) started to build it. The cams were steel and bored to lube with the outlet on the trailing part of the lobe. It also had two spark plugs per cylinder. Heads were aluminum. When it came time to have the cams ground, I made the mistake of writing the Harvey Crane, who ran with the idea and made the Moser engine. Oh yes, the cam towers were removable. I still have the original drawings.

[@sczuylevch13]

Also there was a 1970 coronet model when I was a kid, and you could either build it with a regular hemi, or the doomsday hemi, I never knew it was a real thing until I was laying my hands on its sacred valve covers last Friday!

[@punkwarlord9281]

sczuylevch13 yeeesss the amt coronet super bee drag car I built a couple of them

[@topseykretts251]

@@punkwarlord9281 My bad didnt catch on to the bulidable car models.

[@punkwarlord9281]

D Greene Jr. I figured its all good I wish I had built a couple real ones lol

[@topseykretts251]

@@punkwarlord9281 I had a 69' sold it to my pops to pay off school loans and of course he wont sell it back to me now that I'm older and have my shit together, he tells me ill get all the cars when he dies. I started building my own.

[@virtuosoification]

had that model in highschool managed to convince staff to get the whole class that wanted to take part build a kit . pretty durn cool and one the few things in my life that went well and suited me being weird . building plastic models in the 90's didn't make one a popular kid ...who woulda thought car kulture would grow again like it did . i later on actually airbrushed the beast in sublime acrylic still have the kit and the hemi 30 years later

[@silversilversilver3827]

Tony is always wealth of knowledge. Thanks

[@thomasbailey9605]

Wow....i never even knew this engine existed! what an awesome beast.

[@konradfrancis2572]

Those experimental motors of the 1960's and early 70's are crazy. Did you ever hear about the 4 valve hemi oldsmobile motor? Apparently it made 500 hp with a stock intake

[@notablynova4247]

NASCAR in the 60s lead to major development in the automotive industry. GM lobbied enough to kill off Mopar and Fords dominance and reduced the displacement to 350 cid That's what lead to the downfall of Chrysler in NASCAR and lead to GM dominating the 80s. I want to cry when I see a wing car pic where the CID on the hood is less than 350 CID. Yes kids, the wing cars were so aerodynamic that they could still take a Chevy even if they had a small block. I'm only 2 mins in and heard mention of the GM "Mystery Motor", Ford's 427, the Max Wedge and am wondering if you'll cover the BS that NASCAR pulled to ban the Hemi the first time. The aero package cars (Daytona, Talledega, Cyclone spoiler) were so fast that the major name drivers boycotted races because the tires wouldn't hold up to the speeds they started reaching. GM is the reason for the power loss in the series and it's obvious when you dig into the history of the sport. Mopar was the king of stock car racing in the 60s and Ford was the prince, GM was the Jester that couldn't make anyone laugh.

[@dukecraig2402]

When Chrysler designed their Daytona "aero-car" they actually had an aeronautical engineer from their missile division go to the automotive engineering department to work on the aerodynamics.

[@notablynova4247]

@@dukecraig2402 they used a wind tunnel at a college (can't think of which one) to perfect the airflow. There was actually interest in this during the first gen Charger as well, there was also a 1971 aero car that wasn't completed because of NASCAR restriction

[@notablynova4247]

@John Johnson stage racing killed it for me. It was always about endurance above anything else. Of course when Dale died I was already mostly done with the sport. Sterling Marlin was demonized over the crash and as a fan who grew up in the 80-90s I knew Dale was the cause. I'll still watch the occasional race but the heart of the sport died years ago.

[@joshhoy6257]

Yup. GM cries anytime they lose. And anytime they win, it's because they've managed to get it handed to them.

[@johnnystephens6329]

@@notablynova4247 there is a car meme out that shows a Bugatti Veyron and a Dodge Charger Daytona. It says " this car, the Daytona, reached 200 mph with just 4 gears. How long did it take Nascar to achieve that? Those were full steel bodies cars, stripped, but all steel

[@jeremykops]

Also glad to find your page, I'm a life long Mopar man

[@joeford860]

Great History lesson, Chrysler always had top engineers. I would love to to see one of those engine's manufactured today. Thanks Tony.

[@MonsterBuddy10]

I love that your car knowledge is seemingly endless and its amazing that you're sharing all this knowledge! Keep it real Uncle Tony! 🤙

[@hotrod4d]

I think the coolest Mopar speed part I've ever seen is a long tube cross ram intake manifold

[@timallred6789]

My best friend had one on his 440 dart swinger aint no way to beat it in the rpm range it was made for

[@Welcometofacsistube]

Chrysler engineers were obsessed with intake/exhaust air pulse. The long ram intakes are actually 105% ve efficient. Literally supercharging a na engine

[@shaunclifton5281]

I have a long ram on my hardtop Chrysler wagon

[@hotrod4d]

@@shaunclifton5281 you had me at wagon lol

[@shaunclifton5281]

@@hotrod4d Been to a cruise or car show in the last 10 years ? Wagons have been constantly stealing the show. Especially a hardtop with factory big block, long rams, hardtop

[@sczuylevch13]

I went Friday, my favorite part was the fact the engine had 16 intake ports!

[@octagongarage3504]

I wish Dodge would get back into NASCAR and kick toyota's ass

[@ozmister101]

dodge got tired of nascars bs and letting chevy get over on everything. nascar is all about what chevy is allowed that your not events. chevy was using ford rearends in the 90s before daynas was sold openly on the market

[@kaylapearcey2527]

They don't run production engines any more. What's the point.

[@octagongarage3504]

I wish they would go back to their roots and race stock production cars again

[@loungecruz]

Italians don't dig nascar

[@aramondehasashi3324]

NASCAR is a joke now. The series will be dead in 10 to 15 years.

[@howabouthetruth2157]

Yeah, that Chevy "mystery motor" was one bad ass unit. I'm a huge Junior Johnson fan, and I learned a lot about the the cars he raced during that 1 year with this mystery motor. It was something uncommon for Chevy, as it was a big bore/short stroke engine. But he said they always had problems with the valve train. However, they led EVERY race with this motor, and IF the valve train held up for 500 miles, they absolutely put the rest of the field to shame & won the race. He stated if they could've solved the problems, they would've won every race that year. He swore they were getting between 700 and 800 hp out of that motor. That video is here on youtube. It's all an interview with the car by the man himself. The video title is: "Junior Johnson and his 1963 Chevrolet Impala SS"........For any serious car guy, THIS video will give ya goose bumps. Best video about the mystery motor, the car, and what they were accomplishing that year......IF they didn't blow up.

[@MrOilcountry]

UT, Absolutely a total thumbs up channel. Short, sweet and concise vids with a lot of meat on the bone info. Other channels just wear you out because their rhetoric just goes on and on and nothing is said worth while!

[@anonymousgoat3669]

Gonna be 100k before you know it, Uncle Tony is a Motorhead legend most didn't even know about. So much respect for your knowledge and the willingness to share it and pass it down. Much respect my friend and I'm sure thousands of people will agree .

[@dansmith6990]

a year later and he's closing in on 200k!

[@pookysdad4884]

Hell yeah. I was reading Tony DeFeo articles in car mags 25 years ago.

[@AtZero138]

History Listens With Our Uncle Tony, and Learning is Growing... Oi oi oi..

[@TheGunfighter45acp]

Interesting! It was also nice to hear a little bit about the progression from the Wedge and the Hemi, too.

[@mikecarll8596]

Had no idea such a thing existed. I would LOVE to hear a dohc hemi running in person.

[@tevetanders9729]

I wish they would build it again. It would be a MONSTER. 👍👍👍👍👍

[@MichelLinschoten]

Teve Tanders no it wouldn’t newer technology as much as I hate and I mean hate admitting it. Will push way more than this

[@hank1556]

I love that I learn something new every video you put out. I also have that exact same Super Bee tin hung up in my garage so hopefully Im on my way to becoming a genius as well

[@richardwilliam3757]

NASCAR killed the 427SOHC also

[@ozmister101]

nascar killed the big 3 going head to head as a real thing. chevy got over once to often, even ford almost left. they used a bs made up rule to keep fords 427 overhead off the track. mopar response was lets make something like that. chevy was oh shit were screwed whine cry nascar theyre engine is better then our whine ban it pls nascat ford your engine is banned. then they banned the hemi and mopar said go f yourself

[@aramondehasashi3324]

Don't forget they changed the rules when the Daytona & Superbird were destroying everyone too.

[@w41duvernay]

They were worried about the then tire tech being able to handle +200 mph speeds. A very valid concern. The last attempt on making radials work on NASCAR failed a few years back, so we haven't improved things now..

[@Colt-tf6xf]

ozzy kimble they wouldn't have to have banned the Ford sohc, it was pretty good at self destruction anyway.

[@stillbill6408]

@@ozmister101 Not true. Ford killed the SOHC 427 as Ford chose not to mass produce/offer the engine in any of its automobile platforms (making it available to the public as Chrysler did from 1966-1971 with its legendary Hemi) as NASCAR rules declare that only production engines may be used in NASCAR competition. The "Cammer" engine had many great engineering flaws; hence, Ford chose not to mass produce it and wisely decided to start with a clean sheet design which became the BOSS 429 IMHO.

[@electrolytics]

Ahh yes. Solid UTG! "Talkin' Iron" with your host, Uncle Tone.

[@Tshade67]

Thanks for the history lesson Uncle Tony. I'm sure there a lot of people that know nothing of this engine.

[@dickmasterson8024]

Love the history you teach in these videos. From technical aspects to fun action sports side. All around useful knowledge of this engine. Great video!

[@kenbtheman]

"So Ford figured they could squeeze another 500,000 rpm". I love it. You are awesome to watch, because we think alike. We're on the same wavelength. Hahahahaj

[@rodney1818]

Thank you for that little tidbit of History never knew about it

[@jeff7.629]

I read an article about it in the late 80's on the sole surviving engine. The major issue they had during development was the Alcoa tappet carriers breaking when the engine was run at high RPM's. Alcoa was unable to perfect the alloy and cast process. It would have been interesting to see it come to fruition.

[@nuversion8673]

I remember watching those wings going around the track in those old NASCAR days. I was like 13 or 14 at the time. I remember watching it at my grandma's house and my uncle came pulling up in a lime green Plymouth super bird that he'd just got. He took me and my brothers for a ride around the block and I'll never forget the look on our friends faces as we drove past. God I miss those days!

[@arkangelnorthman]

"squeeze another five hundred thousand rpms out of it..."....LOL!!!!

[@robertlee9395]

LMAO! Might get some valve float at those speeds!

[@lb4899]

I think he meant it like "an extra 500-1000 rpm"

[@arkangelnorthman]

@@lb4899 of course!! im just bustin his balls!! lol!!

[@rogergoodman8665]

Mother Mopar may have developed this 426 DOHC HEMI and have a history with the HEMI going all the way back to the mid 1950's but they were not the only manufacturer to experiment with & develop HEMI's V-8's & OHC V-8 engines. Pontiac developed the 421 2 valve per cylinder SOHC, the 421 3 valve SOHC & the 427 2 valve per cylinder SOHC HEMI. Chevy developed the 427 2 valve HEMI & the 427 2 valve SOHC HEMI. Oldsmobile developed the W-43 455 4 valve per cylinder OHV HEMI & the OW-43 455 4 valve per cylinder DOHC HEMI. Buick developed the All Aluminum 215 HEMI V8. And Ford developed the 289 SOHC, the 427 SOHC & the BOSS 429 SEMI HEMI. Some were more successful than others but ALL are legends!!! Hell, even Toyota developed & manufactured HEMI engines back in the day!

[@joeyseagulls9262]

Had a hemi yota was indestructible

[@TheGeil8500]

Yep and Mopar has the patent on the Hemi and they were and still are superior.

[@rogergoodman8665]

@@TheGeil8500 : WRONG!!! Mopar does not own the patent on the HEMI engine. The patent they obtained in 1950 expired in 1970. In the U.S. patents are only valid for 20 years. Mopar did not even invent the HEMI engine. Welch Motor Car Company invented the HEMI engine in 1904. All Mopar owns is the trademark name "HEMI" not the patent rights. The Chrysler HEMI died in 1971, What Mopar sells today in modern cars that they claim is a HEMI is not actually a HEMI engine at all...the cylinder heads are of a modern "Pent Roof" design. They are only HEMI'S because they "Slap" the name HEMI on the air cleaner & the sides of the cars. Learn your history before your fingers go tapping away!!!

[@TheGeil8500]

@@rogergoodman8665 Were you just born yesterday or are you just plain stupid. Now which one is it?

[@rogergoodman8665]

@@TheGeil8500 : Neither! But apparently you are both! Do a little God damned research & you will see I'm correct! Sorry to burst your HEMI BUBBLE....NOT.

[@ThreenaddiesRexMegistus]

Fascinating Mopar history. It could have been a world beater. I’ll just settle for my little 392ci Hemi meanwhile. 😊

[@beastboy0078]

Thanks for the info. Stuff like this get my motor going. New gen, old school guy.

[@BrieferBread66]

Why don’t we have teachers like uncle T in schools today? Passionate, knowledgeable, and enthusiastic. But hey I got a free class every video I watch.😂

[@michaelmartinez1345]

Great Episode!!! It is amazing how Tony finds these gems... This was one of his best segments...

[@burfurger3074]

Huge Nascar fan here. Very informative. Nice to know that we can thank NASCAR's rule enforcing "pushrod engines only" for the delay of true production OHV V8's until the late 80's. Toyota had to go back in time and invent their own just to be able to compete in the series back in 2005. The rule still stands today, and is widely believed to be the only reason any new, or foreign manufacturers haven't entered the sport since Toyota.

[@kb9oak749]

I saw a write up of that engine in a Mopar magazine when I was a kid. IIRC it had some trick Magnesium bits as well.

[@DecoHeavyMachinery]

Love your videos, thanks for sharing your knowledge!

[@RT69hemicharger]

Nice Poster behind Ya head! lmao too funny!

[@patriot8844]

hey brother been a mopar man since i was a puppy. never heard of this engine. thanx for the schooling

[@fishsquishguy1833]

Love the history lessons! I’d love it the next generation of the Hemi was OHC. Might be a lot bigger externally, but a 4V OHC Hemi would be crazy!

[@black88coupe]

Great story on some MOPAR history. In the late 80’s i crossed paths with a guy that had a SOHC 289. Was an interesting piece.

[@58sportsuburban]

I know about the ball stud Hemi. But never knew this engine really existed. There was a model of a pro street ‘70 super bee done in the late ‘90’s, that had parts to build this DOHC Hemi. I just figured like most models, it was just something the kit maker came up with. I guess next time at Carlisle I’ll have to spend more time going through the buildings.

[@francfurian8215]

Excellent history lesson once again Uncle Tony. I would’ve loved to have seen it my self. Cheers guys😊

[@randymekalet4244]

Thank Tony for a very informative video. 👍👍👍

[@howabouthetruth2157]

I love this stuff. Great job Tony. For anyone interested in "the Chevy Mystery Motor", read my other comment and the video title I included that is the best I've found about this particular motor AND the Impala with the suspension that was also ahead of its time. I love all the great engine designs from "the big 3".

[@greenpea123456]

Oh man! I think i saw you at Carlisle! I didn't know if it was you but I almost yelled out 'hey uncle tony!' If I run into you next year, you can bet I'll say hello!

[@domnicclassi3823]

Wow, so much info so quickly, it flows out of you like a horsepower encyclopedia.

[@marshallmcdowell3369]

I've always been looking for knowledge on this engine! Thanks!

[@chucklynch8397]

"Rebuild Your Engine!" I sure wish you were my neighbor. I'd visit you everyday with a cold beer just to watch you work and talk about you profession and hobby.

[@rexwamboldt6659]

Never heard of this beast! Would like to see the engine run though

[@mikebrown8065]

Uncle Tony!! Great history lesson here!! Thank you. Looking forward to the next episode!!

[@TheDr.Magnum]

I'd love to see someone make one today with modern technology

[@DrShankenstein]

Awesome episode! Very cool! I love listening to car history. I wish I had half of Uncle Tony's knowledge!

[@dennycrane6253]

There was a guy i met back in the 70s that owned a machine shop and was a ex racer at the local speedway. He was in his late 80s at the time he knew everything to do with cars from the 20s to the 70s. He waS unbelievable. The amount of knowledge he had. Sadly it all went with him when he died. His stories were that of legend. He was les keeton. Rip

[@DrShankenstein]

@@dennycrane6253 Those old timers are too few. It's sad

[@dennycrane6253]

@@DrShankenstein i loved listening to him talk. He'd say oh the first v 8 came out in blah and well there were these troubles so we did this and so on. He forgot more than ill ever know. He was a genius

[@DrShankenstein]

@@dennycrane6253 there's definitely something to be said about experience. When you've seen it all..

[@jbmopar1971]

Awesome, I love coming across random cool shit . Larry at Mopar city has all kinds of cool stuff I can spend hours in there looking around.

[@DanielTurner-cf8rr]

I always learn something new. Thanks again, UT!

[@grahamovgibb]

The knowledge you hold is unbelievable. Thankyou

[@coozy100]

Olds w43 dohc engine was also pretty fucking cool. Worth a search

[@johnkempf1808]

Duesnberg's Lycoming strieght eight had DOHC in 1929! en.wikipedia.org/wiki/Duesenberg_Straight-8_engine

[@johnnyhawkins43]

Just love this dude,He's very knowledgeable!!!!!!!!!!!

[@shanefochtman7117]

I'm 35, I wish I would have been around back then. All my friends an family are from this era. You know the "muscle car movement"!

[@emileemarshall7757]

Love the don't FUCK WITH ME poster in the back while he's talking about a HEMI

[@mrbarr1961]

i enjoy hearing you teach about the storys of motors and cars.

[@joedonatto9237]

Thanks for Real Knowledge!! 20 years Building Motors and these Kids ask me what it think is Safe then they do exactly what I said not to do. Then it’s my Fault!!! Please Explain V/E(volume metric efficiency of a motor

[@bosshoss69lee]

Could you imagine if nascar had encouraged the auto makers to compete and not cut them at the knees??? We would literally (probably) have 150mpg cars and 1000+ mile electric cars and alternative fuel would be fully researched

[@danw6014]

Fuel cells maybe. Battery electric car are going nowhere. Odds are lithium is used up long before oil.

[@1racemate]

who is going to pay for the fe

[@waynefergusson9987]

@@danw6014 Lithium will be replaced / superseded by other resources hopefully natural and renewable

[@sugarnads]

Its almost like you think cars are only made in the USA...

[@fredericrike5974]

@@waynefergusson9987 Look up graphene- very interesting, much potential. We will see- but technology usually occurs when events drive it. To often that has been war- I'd rather go to the moon and collect digital science and computers for my reward!

[@nastybastardatlive]

I had the original centerfold photo of this engine from your magazine taped to my bedroom wall for years.

[@jeffjankiewicz5100]

Love the history lesson Uncle Tony! Thanks!

[@PatrickLacy]

Thanks Tony. As long as I've been around Mopars, I've never heard of the A925

[@Tommy_Mac]

Great video! Seems like Mopar engineers a solution and begins dominating. The sanctioning body doesn't like it being lopsided. Mopar takes a break. Happened in NASCAR at least twice, and NHRA, most notably Pro Stock. I find it funny that the Hemi still dominates in the NHRA fuel classes, so much that some of the engines say Ford, or whatever, on the valve covers! Ride On Tony!

[@kurtw176]

TommyMacDaddy1 Agreed. Mopar always gets penciled out.

[@michaelfritsche4023]

Bore Spacing and Valve Angle. I love Nitro. TFX and AJPE

[@comradeyuri8492]

So you think the Sonny Lenard engines are 426 Hemi's ?

[@Tommy_Mac]

@@comradeyuri8492 actually Sonny's motors have evolved to have hemi heads on a Chevy block. www.hotrod.com/articles/hot-rod-garage-episode-12-1225-horsepower-engine-711-ci-sonny-leonard-chevy-hemi/ They aren't chrysler- based, so I get your point. The big Chevy based block is cheaper and less fragile. Proline has done something similar, offering hemi heads on their engines.

[@josephtaverna1287]

Good afternoon Uncle Tony very revealing video I also wanted to thank you for turning me on to the stickman you have a great evening take care buddy

[@LightWaIker]

Very interesting stuff Tony. Never knew this. Thanks. See you tomorrow!

[@t.t.6398]

"Ford figured they could squeeze another 500,000 rpm out of the thing." 500,000 rpm.... MORE? Holy jet engine Batman!

[@AzureKnightmare32]

Utterly friggin fascinating. Thanks for posting this.

[@bdogjr7779]

Awesome Uncle Tony《☆》Chrysler & NASCAR :*: A prime example of a Love/Hate relationship🤓☻🤠

[@drippinglass]

I remember reading about this in Hot Rod mag back in the 80’s. I don’t think it ever ran under it’s own power.

[@roadeagle]

Uncle Tony, I cannot wait for the CV19 to be over so I can hopefully see you and Nick (Nicks Garage) possibly do an episode together talking about Mopar and taking live questions on muscle cars. You are both the only reason I open YT to get my fill on history, knowledge and just plain grease talk. Thank you sir.

[@QuietDriver97]

So cool I saw you and Kathy walking the pups. I was with the guys to the right of the ''Dolla Wata" crew.

[@thejasonbischoff]

Haven’t watched nascar since I was a kid in the 70’s. Did just find a sick vintage Dodge nascar jacket at the thrift. Will be wearing that come Fall.

[@j-bird1707]

100 years from now they will look back on these as “ancient scriptures” and be held in high regard

[@Beandiptheredneck]

J-BIRD I don’t know about “ancient” but im sure the kids of that day will sadly have no idea what an internal combustion engine is other than maybe something Great grandpa goes on about when he’s off his meds again 😂

[@ApostleDavids8w]

Not exactly true. In a few years from now you have the beginning of the tribulation as we see the 4 horseman active right now. As also the temple and Babylon are being rebuilt. Also the church stewardship has been restored through Apostle Eric at Second8thWeek During the tribulation I’m sure people may think back on this history. But after the tribulation Gos is cleansing the earth as the battle of Armageddon is completed and the millennium reign with Christ begins. At that time new history is being made.

[@Chriskelly19067]

Love the general mattis sign behind you

[@jroch41]

I learn something new in every video.

[@tonygayheart3049]

Never knew such a thing existed. Awesome.

[@HOTRODRICH]

Carlisle right in my backyard wish I'd met you there

[@Carstuff111]

That is the most odd thing I have seen in awhile, and yet, so familiar too! I would love to see that engine torn apart! Seeing old school MOPAR big block, with stuff that would look at home in my Honda engine! Thank you so much for these videos!!! I love when odd ball things blow my mind! Would love to hear that beast scream to life in a car!

[@fastcarsfreedom7282]

Was at Carlisle as well.What a turn out this year.Had a awesome time.I some how with all the beautiful car's came out with a second place award in my class.

[@UncleTonysGarage]

Congrats!

[@bookeruzzell6213]

Not only nascar NHRA also help castrate hemi!Every week changing the rules and weight.To this day it's still the same!

[@xxgrimravenxx5172]

Aren't top fuel cars still running nitro power 426 hemi's, there was one parked outside of my work last year and it had a 426 Hemi making 10k hp, it doesn't matter which top fuel car they're all using them

[@bruceowens480]

I enjoyed this one. So much good info you threw at us quickly. I have always been a motor head and thought I knew a lot but obviously, as you proved, I don’t know everything. Thanks again.

[@sparkplug1018]

I wish more of the engineers that worked on some of this stuff would come out and document what they worked on. Because Tony has gone over a bunch of "could have been" engines before, but those are just the ones we know about. There are probably dozens of engines that were built and tested for various forms of racing, that never saw the light of day for one reason or another. And just like the cam timing on this one, it wouldn't surprise me to learn that many of the features we see on an engine today, were developed 50 years ago.

[@jayzay4305]

WOW UT, another fabulous video love the history lesson keep up the great work!!!!!!!!!!!

[@erinralston]

My dad was a Chevy guy, his dad retired from the Leeds plant here on Kansas City. I never forget, one time I was in the shop and he was talking to one of his buddies. He said, "yeah, Chrysler makes damn good horsepower." I was like 10. We'd never owned anything but GM vehicles. A few years after he died I bought a 92 Dakota single cab 318, NOT 4wd. My first truck was dad's 70 C10 with the 350 and the 3 on the tree. That Dakota is probably just as fast and actually accelerates quicker than my Chevy. Man I wish my dad was around for that stuff. He'd hate it 🤣

[@christopherkroussoratsky2014]

It wasnt the cam buckets that cracked, it was the cam bucket carriers. That happened while the motor was run without internals by an electric motor to test the valve-train. I believe the cam bucket carriers were cast by Alcoa, they should have been machined from forged billets for more durability. It would have been interesting if the A-925 actually ran as a complete engine.

[@MrRoach-yo3mz]

I was at Carlisle last week too, sorry I didn't see you... i'm about 30 minutes from there in Maryland

[@UncleTonysGarage]

I was only there for a few hours on Friday

[@thefordmaniac]

Maryland here baltimore area. But born and bred in dc area.

[@BackyardClunkers77]

Chrysler corporation made 2 prototypes of these (DOHC 426c.i. Hemis... one sat up in Michigan at a Chrysler warehouses collecting dust, the other engine sat in the corner of one of my dad’s friend’s garage in upstate Ny. Both were complete engines. When I was 9years old me & my dad went to his buddy’s house to help him clean out his garage & organize it. At a young age- I basically grew up as a mopar but/ mopar gearhead, & so was my dad’s friend. He had two “twins”- identical colors/trim- 1971 Plymouth gtx, & a 1972 Roadrunner, both were dark metallic green/ black interiors; sitting collecting dust in his garage. The car he drove a lot was a 1970 Roadrunner superbird - red, 440 6 pak, 4spd pistol grip, white interior. He had other cars in his collection- but when it came to cleaning & organizing his garage... low & behold what I found buried in the corner on an engine stand- was one of these- Daul Over Head Cams (dohc) 426 Hemis... I asked the dude- “why don’t ya put this in that GTX”, his response was: “cause they don’t make any parts for it”. Me: “it’s a Hemi, they made hundreds of these, what do u mean they don’t make parts for these”.. then his response was: it’s an over head cammed Hemi. It was a prototype engine. & at that time- I learned what prototype meant. Last I knew my dad’s friend up in NY still had that engine. It very well could be the one that showed up at Carlisle PA- during one of those mopar swap meets.

[@BackyardClunkers77]

I’ve always wondered how much power that particular engine would make. It would’ve been a definite racing monster on the tracks & on the streets if Chrysler gave the go-ahead on building them.

[@bigunone]

Twin over head cam Hemi! Hey Tony remember all the different heads offered for the SBF before the 5.0 came out? I remember reading about a guy who was adapting japanese engine heads to American V-8 unfortunatly his shop was destroyed in one of the California fires, among the engines destroyed was an all aluminum Ford twin overhead cam, fire was so hot it melted it down!!

[@1racemate]

his name is Pete

[@bigunone]

@@1racemate and?

[@davidprevost6670]

Great content as always UNCLE T