I have been a professional mechanic going on 38 years. Needless to say I have seen a lot of changes, especially in the last ten years. I have managed to keep up with those changes while remembering the basic fundamentals of a gasoline powered car hasn't changed much since it was developed. The internal combustion engine still needs the same four cycles to operate. Whether the engine has breaker points or nine on-board computers, without those four cycles, the engine won't run. That being said, this video is as relevant today as it was 70 years ago. A lay person with little or no understanding of an internal combustion engine could gain some useful knowledge from watching this video. How does a spark plug work? What is a valve? What does a piston do? Where does the crankshaft go? The information you and I take for granted is easily understood in this video.
My first car was my mom's hand me down 1958 imperial two-door coupe with a 392 in it. That 392 moved that big heavy car along pretty good. It was big power for back in the day
@@joecummings1260 These Imperials could easily out accelerate a Cadillac from a full throttle stand start when both cars are being floored like from a traffic 🚦 light. My parents had a 58 Caddy and the Imperial was pulling ahead of us while we both drag raced no doubt the Imperial was a 58 or a 59. I too think the Imperial had a much more efficient automatic transmission the Torque flight Automatic with a heavy duty torque converter. The Hydramatic in the 58 Caddy only used a Fluid Coupling which does nothing to multiply Torque at all.
Hello You Tube viewers I'm Happy to be apart of such Great Channel for Public service's and instructional Videos and just straight up Intertainment and instructional Videos. You Tube is I believe the Leader in this form of Public Video intertainment ! #1 in my Book !
Tech sounds like a Tom and Jerry character lol, and Dan definitely sounds like Larry from The Three Stooges. LOL I love these old videos and it's cool to see how things where made back then. These folks absolutely earned every single penny in that paycheck.
The Prius is a great car, it is 100x more comfortable than a muscle car 100x better gas mileage, 100x safety, 100x quieter, 100x more practical, more seats and cargo space AC and better heat.
That one guy sounds like my great grandma when i last saw her in the hospital. Her last words to me were "go to Walgreens and get me a carton of Marlboro". When i came back, she died from Emphysema.
Interesting how they insist on pre loading lifters. Many other companies say not to do that. I’ve personally see where a hydraulic lifter was too loaded cashing the valve to float
Today on Legacy ChryslerTech..we cleaned up crancase n changed oil in the 318 v-8 shop truck(Ramcharger)...next is part 5 of a re-haab for a 1993 LeBaron 2.5L Convertable unit- R&R cv shafts n axle seals- trans fltr n.new fluid. Happy Motoring!..
AWESOME! Not much videos out there for the 1952 Firepower. Appreciate it. I love the original vintage video. :) Thanks, and if anyone can add videos of a 1951 firepower and tips to maintain would be appreciated. I'll need to try and make some videos for others out there.
Tech smokes pretty heavy doesn't he. LOL!! I love these tech films. Watched many of them doing mechanic work. Diesel engine and gas engine and heavy Equipment.
owned one of these dodges with the gyromatic transmission it was slow you had to step on the clutch for the transmission could shift up to a higher gear.i gave it away to my friend for nothing and bought a mercury. jim
I watch these earlier 'Tech' narrated films and have to try and not think of Looney Tunes' characters while I watch. That's right, this particular Tech was voiced by none other than Mel Blanc!
one of the best. I have owned a few, and one had 400,000 miles on it. One was in a 1971 Satellite Sebring Plus, 1974 Plymouth Duster, and 1970 Dodge Coronet, and also a 1999 Durango
The '51 Chrysler, Plimouth and DeSoto cars I've seen here on Brazil when I was only 8 years old - I am 64 now - are all on block mounted valves and plain heads, if it was Ohc were only for north america' consumers...
It goes both ways...you can/could still vw beetles and Toyota hi lux trucks....but not us here in USA....which has been taken over by communists...maybe we'll get ladas.
@glorifiedng: 7.1 compression certainly not high at all which allows use of regular gasoline! Starting these cars I always thought you have hold the accelerator down to the floor board when fully warmed up to prevent flooding and with the clutch pedal also held down to the floor board.
My Dad had a 1951 Chrysler Windsor with the 6 cylinder engine and Fluid Drive with the selector showing "R L N HI drive". When starting that car anytime you had to hold the accelerator down to the floor board to prevent flooding always and with the clutch pedal fully floored and gearshift in neutral. The car could easily be accidentally started in gear causing the car to move unless you had the clutch pedal down to the floor board. The transmission always willingly kicked down into a lower gear on full throttle in HI range or LOW range!
@@albertcarello619 wow that sounds like... in todays specs: bypassed clutch depressed switch and starting it in gear. I saw where a technician got "unalived" when a young lube tech stepped on the clutch to crank the car after an oil change and it was in gear, and he did not realize when reaching for key, and after start let off clutch and it learched forward, running over the other tech. believe it or not, the owner of the car got sued for wrongful death, or something, by the tech's family. VERY DANGEROUS!
@glorifiedng There's no neutral safety switch to prevent the car from being started in gear like todays automatic transmissions. With Fluid Drive you'd better make sure the car is in neutral and the emergency brake is applied when starting a car with Fluid Drive as well as the clutch is fully depressed to the floor!
Pity they never spaced them evenly- close to the cylinder walls but big gap in between. The valves in a 265 Hemi (Aussie six) all but touch each other, 1.96" inlet and 1.5"exh. The 265 shares bore size of the 318 V8.
Don't get no better than a Hemi,I raced an old Chrysler in the seventies and I was in a 55 Ford that was a one owner and it would run for what it was but,I couldn't do nothing with the Hemi!!!!!!!!
Regular gas then was 100 octane. Premium was at 110.Flying A was 114 octane, with the good stuff and lot of pollution. Oil wasn't that great.29.9cents premium gal.Same refinery then as now.Same plumbing, different price today.
That, and the fact that oil to the rocker shafts was intermittent, easily fixed by grinding a groove in the center cam journal, or using a later camshaft with a grooved journal.
@B. Rippy I think he simply means that low octane fuel requires a low compression ratio. Around 1980 they stopped selling premium. My dad had a 69 Chevrolet with a 427 v8. It wasn't a high performance model but had probably 10.5:1. And it would knock with regular, unless he drove it in lower gears.
octane was rated different in the old days using RON! WE NOW USE MON+RON/2 = PUMP OCTANE THAT IS 8-10 POINTS LOWER. MODERN PREMIUM IN THE SOUTH IS 93 THAT WOULD 101-103 IN THE OLD RON RATING. SO THE NEW GAS IS ABOUT WARE THE OLD PREMIUM WAS. OLD PREMIUM WAS AROUND 107 IN THE 60S THAT WOULD A 95 TO DAY. and one can run a 10:1 compression engine on 87! i have a 302 with 289 heads and flat top pistons and 0 deck that makes for 10:1 or more depending on yer of 289 heads. the reason it works is light weight vehicle with a 4 speed and 4.10:1 or better gears in the diff. all so a 289 solid lifter cam helps bleed down the hi presser helps. i all so run a 160f thermostat. i run it on 89 to be safe thow. gas in 1951 was worse than today!
I am about to rebuild an old 392 hemi in my old 59 tow truck. What is interesting is that modern "hemi" engines are not hemispherical heads, they are oval in shape with a plug on each side of the chamber. The modern hemi is only a trademark name. You can get a real hemi from harbor freight. Lol
Looking at this engine, it also isn't a half sphere, so not a true hemi either. The last true hemi was probably in the thirties when comp ratios were more like 4 or 5 to 1.
I don’t recall that they ever claimed the chambers were hemispherical at the cylinder bore diameter. Rather, they were accurately called “hemispherical segment” chambers, whose radii were much larger. They were segments of half-spheres much bigger than the bore diameter. Regardless of the precise shape, the point was to allow room for bigger valves and to center the spark plug in a relatively symmetrical and smoothly contoured chamber to initiate the flame front in the center, ostensibly burning the mixture more quickly than lighting the fire at one edge.
The modern Hemi would have to have a 7 - 1 compression ratio if it didn't have those squish areas, and with that little compression, scores of people would refuse to buy it, despite the fact that it wouldn't require EGR.
In 1956 those heads made 350 h.p. on performance eng. No others did this and in 1957 it made 4oo h.p. !!!. Dont be in denial!!! 70 year's of top fuel DONATION!!!
I don't get the purpose of the rocker shafts on Mopar engines. Seems to me if you are going to use shafts you may as well design a over head cam and improve valve train control.
but if they ran the cam down the center of the head where would you put the spark plugs? The Hemi was a great engine but the larger head size, increased complexity and extra rocker shafts put it at a price disadvantage and because of their smaller volume Chrysler had to watch the pennies to remain competitive with GM and to some extent with Ford
The rockers being mounted on shafts provides better valve-train performance at high RPM and makes the whole valve-train more stable.You don't have the issue of valve float with the rockers on shafts as opposed to studs like other V-8 designs.
@@fk4515 This is one reason why the polysphere engine was invented. It had much of the cross flow effect of the Hemi, but used one rocker shaft per head. In addition, they didn't have to route the spark plug wires through the valve cover, further reducing the price. Also, the combustion chambers were as-cast, which was another cost saving measure. I sometimes wonder what would have happened of the polysphere designed continued on the LA engine.
The Firepower engine is short and compact... " Compared to what? ha ha. I've had two 354's and a pair of 331's. Neither series could be described as compact.
Oil was horrible then, even 70s oil was garbage compared to today's oil, EXCEPT that it had zinc in it. Today's wonder engines would probably only last about 60,000 miles on yesteryear's oils.
Now we know better, those Chrysler, Dodge and DeSoto V8's were Hemi's. I mean, they did say "hemispherical" at 1:38 in the video, so they knew as well. Just didn't market the term heavily until the mid 60s.
BUT, if they would use 7.5 : 1 today, they would not have to use EGR, they would not have to use retarded ignition timing, and they would be able to use a richer air-fuel ratio.
Imam Obama's action hero Pedophile Mohammed insulted and cursed black people, calling Ethiopians raisin heads and saying the devil looks like a black man. Pedophile Mohammed married his favorite sex toy slave Aisha when she was six. The Klan did many evils to black people, Islam has murdered and enslaved millions of Africans. Just saying.
@@waterheaterservices And Biden who today sanctimoniously as well as hypocritically gas-lights the country about "white" "supremacy", was mentored in his own words by a former Grand wizard of the klu Klux klan! The late Democrat senator Robert Byrd, whom Biden was close enough to give the eulogy for, you can still find it on UA-cam.
This is definitely mostly advertisement but at the same time it teaches you about engines anyways. It tells the layman "here's how engines work, that's why ours is better" instead of saying "Firepower. No substitutions." And relying on brand recognition. "High compression ratio of 7.5:1" what a different time
The Christian God is the True God and I am going to prove it right now: God has a Law called the Ten Commandments (Exodus 20). These Laws include do not lie, do not steal, don’t put others gods before Him (Exodus 20) Have you ever broken any of these Laws? Have you ever told a lie? Have you ever stolen anything? Have you ever lusted after someone? If we really went over God’s Laws in the Bible, every single one of them, it can really expose how much of a sinner we truly are and because we have all committed these acts our punishment is Hell because God’s standard is perfection. Our good works cannot get us into Heaven. That’s like you steal a soda from the store but you tell the judge, “hey judge I give to the orphanage, I do community service.” The judge will not care about what you did. You stole something that was not yours so therefore the Judge is going to find you guilty. God is the same way. But, this Judge is a loving Judge who does not want to sentence you for your crimes. He sent His Son Jesus Christ to come and take the punishment for your sins and if you Repent of your sins and accept jesus Jesus Christ as Lord and Savior then you will be saved from the sentence. Jesus loves you and is not willing that any should perish but have everlasting life (John 3:16) God bless
Chrysler one of the best car builders EVER!. EVER!.
@@packingten Back in this era they're solid tanks.
I learned auto mechanics in high school in the 70's and watched a lot of these chrysler tech films! Brings back memories!
I have been a professional mechanic going on 38 years. Needless to say I have seen a lot of changes, especially in the last ten years. I have managed to keep up with those changes while remembering the basic fundamentals of a gasoline powered car hasn't changed much since it was developed. The internal combustion engine still needs the same four cycles to operate. Whether the engine has breaker points or nine on-board computers, without those four cycles, the engine won't run.
That being said, this video is as relevant today as it was 70 years ago. A lay person with little or no understanding of an internal combustion engine could gain some useful knowledge from watching this video. How does a spark plug work? What is a valve? What does a piston do? Where does the crankshaft go? The information you and I take for granted is easily understood in this video.
The 'information' in this video is misleading.
So many antiquated assumptions being perpetuated as facts.
But good job being an ignoramus.
@@ThunderAppeal Assuming others aren't as knowledgeable as you makes you foolish.
I grew up watching "tech"
and these films as a little boy .
My dad owed a Chysler
Plymouth dealership
Thank you !
are you still involved in the car biz?
You still in a dealership?
I used to make my kids watch tech videos as punishment. Lol
Thats hilarious
@@leaturk11 no
These videos are great! Basic, easy to understand and just as relevant now as they were 70 years ago.
My first car was my mom's hand me down 1958 imperial two-door coupe with a 392 in it. That 392 moved that big heavy car along pretty good. It was big power for back in the day
Yes, and today that Imperial would be worth a tidy sum.
@@joecummings1260 These Imperials could easily out accelerate a Cadillac from a full throttle stand start when both cars are being floored like from a traffic 🚦 light. My parents had a 58 Caddy and the Imperial was pulling ahead of us while we both drag raced no doubt the Imperial was a 58 or a 59. I too think the Imperial had a much more efficient automatic transmission the Torque flight Automatic with a heavy duty torque converter. The Hydramatic in the 58 Caddy only used a Fluid Coupling which does nothing to multiply Torque at all.
Chrysler’s greatness is timeless.
I love these old videos.
Love these old clips!!
They've been called lifters for so long that I had forgotten that they were ever called tappets.
Six months later Tech made a film on the importance of cutting down on cigarettes and cheap whisky.
🤣
And whores......
Hello You Tube viewers I'm Happy to be apart of such Great Channel for Public service's and instructional Videos and just straight up Intertainment and instructional Videos. You Tube is I believe the Leader in this form of Public Video intertainment ! #1 in my Book !
Capitalist......
Now, finally I can work properly on my old Chrysler. 👍🏻
I love these old hokey movies...the voices are pure comedy !
Tech sounds like a Tom and Jerry character lol, and Dan definitely sounds like Larry from The Three Stooges. LOL
I love these old videos and it's cool to see how things where made back then. These folks absolutely earned every single penny in that paycheck.
Hi fellas. No dames here!
Had a 354 hemi, cylinder heads weighed more than a Prius.
My cat weighs more than a Prius
I bet they looked better too
mopar 2 words
Who cares
I owned a 354 hemi also it had sodium cooled exuast valves.
The Prius is a great car, it is 100x more comfortable than a muscle car 100x better gas mileage, 100x safety, 100x quieter, 100x more practical, more seats and cargo space AC and better heat.
Back in the day when the kid in your 3rd grade class who operated the slide projector was the class techie.
That one guy sounds like my great grandma when i last saw her in the hospital. Her last words to me were "go to Walgreens and get me a carton of Marlboro". When i came back, she died from Emphysema.
So what did you do with the smokes?
Im sorry for your loss.......
@@frankpaya690 He smoked them of course. "Don't smoke don't smoke..."you quit smoking that leaves more for me ! Hahaha.
Interesting how they insist on pre loading lifters. Many other companies say not to do that. I’ve personally see where a hydraulic lifter was too loaded cashing the valve to float
Today on Legacy ChryslerTech..we cleaned up crancase n changed oil in the 318 v-8 shop truck(Ramcharger)...next is part 5 of a re-haab for a 1993 LeBaron 2.5L Convertable unit- R&R cv shafts n axle seals- trans fltr n.new fluid. Happy Motoring!..
🤣 its too bad that future is coming up fast
Un motor avanzado técnicamente para su época. Sencillo, pero con potencial para sacar mucha potencia.
This helped me understand the engine in my desoto more thanks
AWESOME! Not much videos out there for the 1952 Firepower. Appreciate it. I love the original vintage video. :) Thanks, and if anyone can add videos of a 1951 firepower and tips to maintain would be appreciated. I'll need to try and make some videos for others out there.
The service manager looks like he’s going to do 10 rounds of boxing before he analyzes the engine.
And his helpers are fast food workers.
😂😂😂😂😂
Announcer sounds like Ward Klever. Keep expecting to see Beaver or Wally!
@@markd.nightingale4266 Huge Beaumont .
Tech smokes pretty heavy doesn't he. LOL!! I love these tech films. Watched many of them doing mechanic work. Diesel engine and gas engine and heavy Equipment.
At least a pack a day it sounds like, lol. Really raspy too. Makes my throat sore every time i listen to "Tech" for advice on my 1965 Dodge Coronet.
"Ok, jouse mugs. Lemme splain to ya how dem big ol hemispherical combustion chambahs helps make mo powah!"
Little guy sounds like he's seen some stuff.
@@phuturephunk Lol......
One of those guys sounds like the collector for my bookie.
Fred sounds like the actor, William Lundigan, who did the Chrysler commercials while hosting the tv show, Climax, during the mid-fifties.
At 9:52 a fully counterbalanced crank??? There are no weights either side of the centre main journal.
Only Ford Y blocks and the Lincoln 317 - 345 - 368 engines had a truly fully counterbalanced crank.
owned one of these dodges with the gyromatic transmission it was slow you had to step on the clutch for the transmission could shift up to a higher gear.i gave it away to my friend for nothing and bought a mercury. jim
Very Impressive for 1952
I watch these earlier 'Tech' narrated films and have to try and not think of Looney Tunes' characters while I watch. That's right, this particular Tech was voiced by none other than Mel Blanc!
Hmm. Interesting
This time we didn't forget the gravy!
1950's tech audio visual, record player and "automatic" filmstrip projector.
Jim David : So that’s what those beeps are all about. Timing marks. . .
Did these engines have a full flow oil filter to keep the tappets clean?
I love this videos.
hemi, best engine ever
is the Chrysler 318 a Good motor
Yes! The LA series is a smallblock workhorse!
Yes for sure.
one of the best. I have owned a few, and one had 400,000 miles on it. One was in a 1971 Satellite Sebring Plus, 1974 Plymouth Duster, and 1970 Dodge Coronet, and also a 1999 Durango
Great motor, will not quit!
Big ol intake valve and the 4’ muffler wow
I think Peter Puck had one of these in his 1953 Zamboni :D
Matt Krull nope, the early Zamboni’s were all built on Jeep CJ5 chassis. They had the willys F-4 engine.
The '51 Chrysler, Plimouth and DeSoto cars I've seen here on Brazil when I was only 8 years old - I am 64 now - are all on block mounted valves and plain heads, if it was Ohc were only for north america' consumers...
It goes both ways...you can/could still vw beetles and Toyota hi lux trucks....but not us here in USA....which has been taken over by communists...maybe we'll get ladas.
@@mark-wn5ek Amen brother.....
watched these in auto shop 1972-76
wow High compression 7:1? man, that's pretty low by today's standards... I had a 55 New yorker with a 331 hemi. I miss it so! :(
Yeah my 67 Buick is 10.25/1
@glorifiedng: 7.1 compression certainly not high at all which allows use of regular gasoline! Starting these cars I always thought you have hold the accelerator down to the floor board when fully warmed up to prevent flooding and with the clutch pedal also held down to the floor board.
My Dad had a 1951 Chrysler Windsor with the 6 cylinder engine and Fluid Drive with the selector showing "R L N HI drive". When starting that car anytime you had to hold the accelerator down to the floor board to prevent flooding always and with the clutch pedal fully floored and gearshift in neutral. The car could easily be accidentally started in gear causing the car to move unless you had the clutch pedal down to the floor board. The transmission always willingly kicked down into a lower gear on full throttle in HI range or LOW range!
@@albertcarello619 wow that sounds like... in todays specs: bypassed clutch depressed switch and starting it in gear. I saw where a technician got "unalived" when a young lube tech stepped on the clutch to crank the car after an oil change and it was in gear, and he did not realize when reaching for key, and after start let off clutch and it learched forward, running over the other tech. believe it or not, the owner of the car got sued for wrongful death, or something, by the tech's family. VERY DANGEROUS!
@glorifiedng There's no neutral safety switch to prevent the car from being started in gear like todays automatic transmissions. With Fluid Drive you'd better make sure the car is in neutral and the emergency brake is applied when starting a car with Fluid Drive as well as the clutch is fully depressed to the floor!
A HEMI head allows for BIGGER valves too.
Pity they never spaced them evenly- close to the cylinder walls but big gap in between. The valves in a 265 Hemi (Aussie six) all but touch each other, 1.96" inlet and 1.5"exh. The 265 shares bore size of the 318 V8.
Hugh Hefner looks on with approval.
Great videos.
Sounds like the old man on petticoat junction TV show talking as the technical mechanic
That "tech" sounds like Carl from slingblade mmm hmm
I thought he sounded like Popeye
Some time in the late 50's Tech's voice changed.
Great movie
Love them taters
This is so interesting.
Which hemi is this ? 392?
Teck smokes Camel non-filters taste great and Dr. recommended! Teck Sounds like Ned on South Park.
@ stuffy321 Tech sounds like he has throat cancer, from smoking those filterless Camels 🐪!
الأمريكي أبداع ❤️🇺🇸👍🏻
Don't get no better than a Hemi,I raced an old Chrysler in the seventies and I was in a 55 Ford that was a one owner and it would run for what it was but,I couldn't do nothing with the Hemi!!!!!!!!
Regular gas then was 100 octane. Premium was at 110.Flying A was 114 octane, with the good stuff and lot of pollution. Oil wasn't that great.29.9cents premium gal.Same refinery then as now.Same plumbing, different price today.
Ford Y block problems were due to bad oils of the day.
also long change intervals,
That, and the fact that oil to the rocker shafts was intermittent, easily fixed by grinding a groove in the center cam journal, or using a later camshaft with a grooved journal.
High compression ratio.... 7.5 to 1. Bad times...
Not as bad as the 70's and early 80's. 100hp V8 engines were common
poor fuel back then.
He's right. Gas in 1951 was trash.
@@MrErikw26 no, they weren't common lol.
7.5 - 1 compression is better than having EGR. EGR is terrible for torque. So is a lean air-fuel ratio.
"and the chambers are machined, to keep a uniform surface for the high compression, 7.5:1!" *PFFFFT*
Machined combustion are excellent. Why don't you know that?
7.5 - 1 High Compression ??? Dual points in 1951 - cool beans ...
He's not a master technician, he's a black belt technician.
7 to 1 CR is due to POOR fuel quality of the day.
Not very long before this, engines were flat heads with even lower compression ratios
@B. Rippy
I think he simply means that low octane fuel requires a low compression ratio.
Around 1980 they stopped selling premium. My dad had a 69 Chevrolet with a 427 v8. It wasn't a high performance model but had probably 10.5:1. And it would knock with regular, unless he drove it in lower gears.
@Big Bill O'Reilly
A sissy would have bought a small block.
phlodel no you are confused.... Low grade fuel in the 50’s didn’t allow them to make a higher compression setup....
octane was rated different in the old days using RON! WE NOW USE MON+RON/2 = PUMP OCTANE THAT IS 8-10 POINTS LOWER. MODERN PREMIUM IN THE SOUTH IS 93 THAT WOULD 101-103 IN THE OLD RON RATING. SO THE NEW GAS IS ABOUT WARE THE OLD PREMIUM WAS. OLD PREMIUM WAS AROUND 107 IN THE 60S THAT WOULD A 95 TO DAY. and one can run a 10:1 compression engine on 87! i have a 302 with 289 heads and flat top pistons and 0 deck that makes for 10:1 or more depending on yer of 289 heads. the reason it works is light weight vehicle with a 4 speed and 4.10:1 or better gears in the diff. all so a 289 solid lifter cam helps bleed down the hi presser helps. i all so run a 160f thermostat. i run it on 89 to be safe thow. gas in 1951 was worse than today!
I am about to rebuild an old 392 hemi in my old 59 tow truck. What is interesting is that modern "hemi" engines are not hemispherical heads, they are oval in shape with a plug on each side of the chamber. The modern hemi is only a trademark name. You can get a real hemi from harbor freight. Lol
Looking at this engine, it also isn't a half sphere, so not a true hemi either. The last true hemi was probably in the thirties when comp ratios were more like 4 or 5 to 1.
I don’t recall that they ever claimed the chambers were hemispherical at the cylinder bore diameter. Rather, they were accurately called “hemispherical segment” chambers, whose radii were much larger. They were segments of half-spheres much bigger than the bore diameter. Regardless of the precise shape, the point was to allow room for bigger valves and to center the spark plug in a relatively symmetrical and smoothly contoured chamber to initiate the flame front in the center, ostensibly burning the mixture more quickly than lighting the fire at one edge.
@@PeopleAlreadyDidThis I have pictures of the heads, they are perfect spheres.
The modern Hemi would have to have a 7 - 1 compression ratio if it didn't have those squish areas, and with that little compression, scores of people would refuse to buy it, despite the fact that it wouldn't require EGR.
Bigger valves can be used and port direct flow is biggest reason it is better.
In 1956 those heads made 350 h.p. on performance eng. No others did this and in 1957 it made 4oo h.p. !!!. Dont be in denial!!! 70 year's of top fuel DONATION!!!
Go back to grade school.......smh
475 to 500 rpm idle?
Slow idle speeds are good, high idle speeds are bad.
That service manager still wearing his bath robe?
Wow..they had better muffler bearings back then...
And the diesels back then had better spark plugs.
They forgot to gap the plugs!
Noticed anyone else that the "Tech" at 8:00 is looking like the german dictator?
2021 hemi power keep going! 😎
🇺🇲🇺🇲👍
I don't get the purpose of the rocker shafts on Mopar engines. Seems to me if you are going to use shafts you may as well design a over head cam and improve valve train control.
but if they ran the cam down the center of the head where would you put the spark plugs? The Hemi was a great engine but the larger head size, increased complexity and extra rocker shafts put it at a price disadvantage and because of their smaller volume Chrysler had to watch the pennies to remain competitive with GM and to some extent with Ford
The rockers being mounted on shafts provides better valve-train performance at high RPM and makes the whole valve-train more stable.You don't have the issue of valve float with the rockers on shafts as opposed to studs like other V-8 designs.
and make it even heavier and thus, more annoying to work on?
@@fk4515 This is one reason why the polysphere engine was invented. It had much of the cross flow effect of the Hemi, but used one rocker shaft per head. In addition, they didn't have to route the spark plug wires through the valve cover, further reducing the price. Also, the combustion chambers were as-cast, which was another cost saving measure.
I sometimes wonder what would have happened of the polysphere designed continued on the LA engine.
@@fk4515 there's 2 rocker shafts, use 2 camshafts like many do now, they mostly have the plug in the centre.
I always thought that it was actually cool, moist air that gave you the best combustion, not "hotter" air?
lol 7:40 Dish detergent?!! Relax, it's Palmolive.
The Firepower engine is short and compact... " Compared to what? ha ha. I've had two 354's and a pair of 331's. Neither series could be described as compact.
Compared to a Straight 8, it is compact.
gas was terrible back then..oil even more so.Cleaning lifters would never be needed with modern oils.
Oil was horrible then, even 70s oil was garbage compared to today's oil, EXCEPT that it had zinc in it. Today's wonder engines would probably only last about 60,000 miles on yesteryear's oils.
Why is the instructor wearing his dressing gown and why are the mechanics wearing forage caps?
Those mechanics just came from their shift at Nedicks hot dog stand.
I wonder if the mechanics would have been fired if they refused to wear those hats?
I want a hat like those!
Those exhaust manifolds look really constipated ..
Is this the flinstones?
No Daimler fiat......
Tech needs to stop smoking. :D
He is grown. If he wants to smoke, its his business, as long as he is in his own house.
@@michaelbenardo5695 LOL! Sure Dad!
a Water cooled carb, interesting
“ one think I’d like to know Fred is why you’re in your bathrobe “
This narrator sounds like Carl from Slingblade.
It’s actually called “ Fire Power “ engine, not “ Hemi” like everyone called it today!!
Now we know better, those Chrysler, Dodge and DeSoto V8's were Hemi's. I mean, they did say "hemispherical" at 1:38 in the video, so they knew as well. Just didn't market the term heavily until the mid 60s.
@@michaelspraggins5419 I agreed.
Cool...
😎👍
"High compression ratio 7.5:1". Haha, that's funny.
BUT, if they would use 7.5 : 1 today, they would not have to use EGR, they would not have to use retarded ignition timing, and they would be able to use a richer air-fuel ratio.
Woah
Mopar Or No Car !
SADPAR!
Not these days.60,s yes..Daimler &fiat the poor oiling on the camshaft on the high power motards of today are not very good. Gm has gone to crap too.
I have to wonder if the apex of these men’s careers was an industrial film for Chrysler made with a puppet.
The one guy sounded pretty rough, like 3 packs a day rough.
DUMB FUCK JUCKBOX!
You will someday be owned by Fiat .
:(
Fred looks like he just came from a klan meeting
Imam Obama's action hero Pedophile Mohammed insulted and cursed black people, calling Ethiopians raisin heads and saying the devil looks like a black man. Pedophile Mohammed married his favorite sex toy slave Aisha when she was six. The Klan did many evils to black people, Islam has murdered and enslaved millions of Africans. Just saying.
...Imagine..
jim justn saying SHUT THE FUCK UP!
@@waterheaterservices And Biden who today sanctimoniously as well as hypocritically gas-lights the country about "white" "supremacy", was mentored in his own words by a former Grand wizard of the klu Klux klan! The late Democrat senator Robert Byrd, whom Biden was close enough to give the eulogy for, you can still find it on UA-cam.
This feel so vaultec.
This is definitely mostly advertisement but at the same time it teaches you about engines anyways.
It tells the layman "here's how engines work, that's why ours is better" instead of saying "Firepower. No substitutions." And relying on brand recognition.
"High compression ratio of 7.5:1" what a different time
In 1951, there was few, if any, piston engines out there this advanced. Short of an R-3350.😁
Much of this is obsolete on cars made in the last 30 or so years.
Really good old film. But why was Fred wearing a dress and talking to 2 ice cream men? 🤣🤣🤣
I bet Fred would like nothing more than to pick up a mallet and smash the heck out of tech!
"Tech" documentary or pure sales propaganda?
This isn't sales material.
The Christian God is the True God and I am going to prove it right now:
God has a Law called the Ten Commandments (Exodus 20). These Laws include do not lie, do not steal, don’t put others gods before Him (Exodus 20)
Have you ever broken any of these Laws? Have you ever told a lie? Have you ever stolen anything? Have you ever lusted after someone? If we really went over God’s Laws in the Bible, every single one of them, it can really expose how much of a sinner we truly are and because we have all committed these acts our punishment is Hell because God’s standard is perfection.
Our good works cannot get us into Heaven. That’s like you steal a soda from the store but you tell the judge, “hey judge I give to the orphanage, I do community service.” The judge will not care about what you did. You stole something that was not yours so therefore the Judge is going to find you guilty. God is the same way.
But, this Judge is a loving Judge who does not want to sentence you for your crimes. He sent His Son Jesus Christ to come and take the punishment for your sins and if you Repent of your sins and accept jesus Jesus Christ as Lord and Savior then you will be saved from the sentence. Jesus loves you and is not willing that any should perish but have everlasting life (John 3:16) God bless
Lololol