The Shocking Truth behind Ford’s Banned BOSS 429 Engine!
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- Опубликовано: 7 фев 2025
- Discover the shocking truth behind Ford's banned BOSS 429 engine in this video. Learn about the history and controversy surrounding this legendary engine!
this is a tale of engineering brilliance, corporate secrecy, and a powerplant so dominant that NASCAR had to outlawed it to keep the competition fair.
The Birth of a Beast
In the late 1960s, Ford was locked in a high-stakes battle with Chrysler and GM for supremacy on the NASCAR tracks. To compete, NASCAR required engines to be based on production blocks, meaning Ford had to homologate their race engine for street use. Enter the BOSS 429, a purpose-built, all-out racing engine disguised as a production powerplant.
The BOSS 429 was introduced in 1969 and was available in the Mustang BOSS 429 and a handful of other Ford models. But don’t let its street-legal status fool you-this engine was a race-bred monster. At its heart was a semi-hemispherical combustion chamber design (sound familiar, Hemi fans?), massive 4.90-inch bore centers, and a staggering 7.0-liter (429 cubic inch) displacement. It was designed to flow insane amounts of air, thanks to its huge ports and valves-2.28-inch intake valves and 1.90-inch exhaust valves, to be exact.
But here’s the kicker: Ford didn’t care about street performance. The BOSS 429 was built to dominate NASCAR, and it was over-engineered for the street. In fact, the street version was detuned to a modest 375 horsepower (gross) to make it somewhat drivable, but the racing versions were rumored to produce well over 500 horsepower.
Why NASCAR Banned It
The BOSS 429 was a game-changer, and it didn’t take long for NASCAR to realize just how unfair it was. The engine’s massive heads and ports allowed it to breathe like no other engine on the track, giving Ford an insurmountable advantage. Chrysler’s Hemi, GM’s big-blocks-nothing could keep up.
NASCAR’s response? They effectively banned the BOSS 429 by changing the rules. They limited the engine’s compression ratio, mandated smaller carburetors, and introduced stricter homologation requirements. Ford’s dominance was short-lived, but the legacy of the BOSS 429 lived on.
The Engineering Marvel
What made the BOSS 429 so special? Let’s geek out for a second:
Semi-Hemi Design: The canted valves and hemispherical combustion chambers allowed for incredible airflow, making it a powerhouse at high RPMs.
Forged Internals: The engine was built to handle insane stress, with a forged steel crankshaft, forged connecting rods, and forged aluminum pistons.
Dry-Deck Block: The BOSS 429 used a dry-deck design, meaning the coolant passages were separate from the cylinder bores. This made the block stronger and better suited for racing.
Adjustable Valvetrain: The engine featured adjustable rocker arms, a rarity for production engines at the time, allowing for precise valvetrain tuning.
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Persistent Efforts to Garner Approval
The Street-Legal Paradox
Here’s the irony: the BOSS 429 was a terrible street engine. Its race-focused design meant it had terrible low-end torque, and the massive heads required a shock tower relocation in the Mustang, making it a nightmare to work on. But that didn’t matter to Ford-they only built it to satisfy NASCAR’s homologation rules.
The Legacy
Despite its short-lived dominance, the BOSS 429 became a legend. Only 1,358 units were ever produced, making it one of the rarest and most sought-after engines in muscle car history. Today, it’s a symbol of Ford’s engineering prowess and a reminder of a time when manufacturers would do anything to win on the track.
Boss 429 was too good. Too powerful. Too advanced?
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I have a boss 9. from John kaase in a 32 all steel hotrod and have driven it more than 40.000 miles and still going strong 💪. best looking engine ever built. runs flawless
The artificial narration ruined this video with stupid mispronounced words
@@richceglinski7543 I beg to differ. The "Camera" engine was bad ass!!!
@richceglinski7543 @TheOverisel
Oh no, I didn’t know my narration was auditioning for a role in a comedy! Thanks for the heads-up; I’ll make sure it sticks to the script next time! the more subs & members that donate to the channel , we can hire the baddest voice in America , thank you for watching!
Either lazy people or a novice... The tragedy is that when younger kids click on they're fed misinformation... Wow, that's a popular word. Yeah, A.I. is killin' the game, and it's only gonna get worse...
@@anthonydavis5993every accusation is in fact a confession
@@TheOverisel don't pump his ego. The A.I. generator might get big headed!
Cammer.. not camera
@robertkerr4199 HahahL, right? Can’t believe I mixed that up must be this dang dislexia ! Thanks for pointing it out!
It's AI what do you expect
@@shameless6963I thought rare cars just said it was dyslexia
Same old story, FORD brings the Heat and Sanctioning Bodies take $$$ from the competition who can’t compete then the BANS ensue. AI Narrations Suck dirty ass.
I only learned yesterday that Ford in 1964 launched a 4.2 quad cam 32V motor with fuel injection. I believe that if they had been aloud to run the cammers. We would have had a coyote type engine in the early seventies.
Every manufacturer had a product to compete, NASCAR as usual slowed engineering.
Same as the intro to the 351C, still banned in areas Ive heard.
@cavscout62 @2011metalmaniac @chrisredfern1882 @danderson9881 Ah, the age-old battle of innovation vs. regulations! If only there were a "no sanctions" clause in the automotive playbook!
@rarecarstorys I suppose I'm glad for it otherwise all engines globally would be the same. If nascar had not mandated pushrods then automotive engineers and would have stopped developing them.
With huge intake ports, the speed of the air/fuel going through is too slow at street speeds and the fuel falls out of suspension and also the air doesn't really have a "running" start to fill the chamber as soon as the intake valve opens. A good street engine doesn't work well on the track and a good track engine doesn't work well on the street.
Try 600cfm for the street.
It's "cammer" not camera....
@bigb4894 You make an excellent point! The balance between street performance and track capability is definitely a tough nut to crack with engines like the BOSS 429.
I found after trading an 860 cfm to a 750 cfm the street performance increased. The sweet spot was around 600cfm. Those huge ports atomized the fuel. Do your research.
Unless you change the intake to tall runners which didn’t come out till much later as stock that’s fords solution.
429 camera huh you mean cammer and the cammer was the 427 sohc your facts aren't
@noduh736 Thanks for pointing that out! The details can get a bit tricky with all these iconic engines. I appreciate your insight! i am dyslexic and have troble reading scripts , i will try to do better
Nothing beats a 427 FE. Legendary for a reason!
@matthewinman5671 The 427 FE truly is an iconic engine with an impressive legacy. It's hard to argue with its legendary status! what car would choose to power with the 427 FE?
Watched '64 427 Galaxies on the street and strip get dusted regularly.
When engine masters ran a contest, anyone who could make an engine with the highest torque with the lowest hp would win the contest, the 429 engine took the prize everytime
@jamesmcknight6440 Thanks for sharing that! It’s always great to learn more about the engineering feats behind these legendary engines. Your knowledge really adds to the conversation!
I used one to power my lawnmower.
@D800Lover
Wow, must be quite the lawnmower! I can see it now: the grass doesn’t stand a chance against that horsepower!
@rarecarstorys - Of course, roots and all go flying. I tow it behind my muscle car, I have a big back yard.
Ok very good video. Love the 429 boss engine and John Kaase has developed into a killer engine.
@anthonytumbarello9940 I really appreciate your kind words! The BOSS 429 is a fascinating topic, and it’s great to see fellow enthusiasts like you enjoying the content!
Yep, Kasse has developed the BOSS 9 and now you can get a big cube 9 that makes about 1,000 hp on pump gas N/A
@@mikeabney1214 You get the same 1000 hp (but not the torque) from a 358” R5 P7 Dodge NASCAR engine but with a cam with specs for drag racing to give it a peak higher hp over the circle track wide flat hp plane from 7000 rpm to 9500 rpm. Amazing what time and technology has changed how much more power can be pulled out of a much smaller naturally aspirated engine than was possible in 1970.
I am 57 years old. I have 2 brain cells. Both the Cammer and Boss engines were specifically designed to be a NASCAR engine. Just so happened the Cammer was great at both. The Boss...not so much. The million dollar question is...why did NASCAR ban the Cammer? I think we all know the answer to this question. I'm sure Chrysler knows as well.😎🤔🏁
@JerryHelton-zo7dg
Thanks for sharing your insight! It’s always great to hear perspectives from fellow enthusiasts, especially about such iconic engines. and contoversy !
@rarecarstorys thank you.🙂
The problem with all the hemi engines is that the camber volume is too high. To get high compression, it requires a domed piston. This impedes flame front travel and reduces power. Don Garlits used to run 50 degrees advance on the 426 to compensate for this. All the hemis came into there own when boosted as this allowed a flat top piston. With the spark plug in the middle of the chamber, this was a great improvement over wedge heads.
@turbo32coupe Ah, the hemi engines-where the camber volume is like that one friend who always shows up uninvited to the party! But hey, at least we can count on Don Garlits to bring the spark with 50 degrees of advance!
The street 429 also had smaller and heavier intake valves.
@rarecarstorys Camber is the tilt of the wheels and is a suspension setting, CHAMBER is a place where combustion takes place. Y'all'd think that someone that called the sock a camera 4 times would take a sec' to assure they spelled something correctly and didn't repeat a mistake... again!
@@BubbaSmurft I am typing challendged
But the Forfd Boss 429 is a crescent Hemi, which is a better street design. Ford choked the engine down as it was only concerned about NASCAR performance. Had emmisions regs had not hit, the Boss 429 would have conquered the street as well
My USAF best friend bought a NARC police car. It still had the little UHF antenna. A TWO door, vinyl top, 429CI, 140mph speedo (used all of it), fun car! Randy won the local drags with it.
@dmonat
That sounds like an amazing car! The BOSS 429 is such an iconic engine, and it’s awesome to hear about the fun experiences you've had with your friend's ride.
I couldn't hang in long enough to find out "what made it great, and what did." This is some of the worst AI I've ever heard.
@yeahitsme3799 I appreciate your feedback! The BOSS 429 is a fascinating topic, and I'm sorry to hear you didn’t enjoy the video. I’ll keep working on making the content even better! i do struggle with reading and writing , must be my dyslexia! i do however never give up on my passions, and endevour to give things 100%, i wish you well
@rarecarstorys Ask around; there are plenty of unemployed actors who will likely do your narration for free, just for the exposure, just be sure to give them credit at the end of your video, or even at the beginning as used to be done many years ago. Using AI narration which stinks only makes your product, and you, seem unprofessional and unworthy of ever becoming a producer of decent video production or editing. Far too many 'influencers' are shooting themselves in the foot, by uploading poorly edited videos, because no one who sees stuff of this quality, will never hire you to do any work for them.
When I was 13 y/o in Detroit, the Boss 429 was my dream engine
@regsmith7604 Ah, the Boss 429-where dreams are made! I bet if you had one back then, you’d be the coolest kid in Detroit! always feed the inner child V8 sounds of freedom, thank you for sharing your memories
@rarecarstorys I did have model car of a Boss 429 Mustang and I had a Cale Yarborough ‘69 Boss 429 Mercury Cyclone II stock car. At one point I had about 18 competed model cars displayed in our living room
*The Boss 429 Mustang didn't have Fully Hemispherical Combustion Chambers*
*It had Crescent Hemi Heads. Glidden had Full Hemi Heads and Dominated for a while*
Dominated for awhile, is a huge understatement!
85-89 Championships every year
What about the "Camera" engine?
@@TheOverisel *I owned one. The SOHC 427 Ford came with Fully Hemispherical Combustion Chambers*
@Shelby-Ecoboost-Raptor-550hp @Mike583 @chadkent1241 @TheOverisel @TheOverisel
You’re absolutely right! " THE SEMI HEMI" Boss 429's design was quite unique with those Crescent Hemi Heads. It’s fascinating how the variations in engine design can impact performance!
I always questioned why the Boss 429 didn't get the job done on the street, running against big block Chevys and Mopars. Thank you!
Basicly stock 302 Z-28s were kicking their butts.
The video explains why it wasn't competitive on the street or strip in the early years!!!
@@donbrutcher4501 Popular Hot Rodding's test of a 1969 Z-28 listed a 1/4 time of 14.74. Super Stock magazine's test of a 1970 Boss 429 listed a time of13.64.
@@WainOhG My 1st hand observations at Martin 131 Dragway In Michigan were as I stated. Many of the magazine "test" cars were blueprinted and professionaly tuned, not production vehicles. Detroit often brought vehicles to Martin for test and tune nights. One night I watched a Chevy team testing a 70 vette big block with an all aluminum motor, auto trans, 15" wide roadrace tires on all 4 wheels, muffled side exhaust, and smoked the tires the entire length of the track. The driver pussy footed it to 11s.
France (Nascar) banned the Boss and Hemi because Chevy (GM) didn't have anything to compete with them.
@stickman-1 Ah, the classic tale of "if you can’t beat them, ban them!" Chevy must have been sweating bullets over those powerhouses!
Back in my college years there was a guy running a stock 429 'stang. His first time out as pure stock he couldn't get into the 14s. Over the following few weeks, he added slapper bars, slicks, advanced the cam a ton and maybe even headers. Ta Da - high 12s.
@donbrutcher4501 From the factory they were so badly detuned and fact is Ford produced only about 500 of these cars . It wasn't until John Kaase got busy improving these engines that they took off. They dominated IHRA Pro Stock and Sonny Lenord basically coppied that cylinder head for the Chevrolet racers.
@@anthonytumbarello9940
Alan Root supposedly built the blocks for Sonny. In a interview Alan mentioned he had his initials AR is on every block he made for Sonny
@BS-Outdoors1320 @donbrutcher4501
It's amazing how much performance can be unlocked with the right modifications! Those upgrades really do make a difference, especially on a classic like the 429 Mustang.From a 14-second turtle to a high 12-second hare! Proof that sometimes, all you need is a little tuning-and maybe a magic wand. love the attention to detail with the signature, great share!
@donbrutcher4501 it too bad that ford didn't make more than 500 of those cars if they even made that amount?
@BS-Outdoors1320 did not know that. If Alan Root made the blocks he made the leading cylinder like the GM pattern and not like the Fords. I've worked on a few Sonny's engines and never noticed any AR initials. But the cylinder heads were almost an exact copy of the Kaase heads.
I honestly wasn't a Ford guy until I owned a Ford Escort Lol. It was a 1988 station wagon to be exact. Well after tinkering with it and learning more about Ford I became an enthusiast of Ford motor company. Note I was a Mopar mechanic for 16 years and a GM / Chevy guy before that.
Built a a whole bunch of GM's Pontiac and Chevy's. Then switched to Mopar but that Escort changed my opinion of Ford. I put 289 thousands mile on that Escort before driving it to a salvage yard. I still own a 1984
Z/28 Camaro I bought new. But own Ford's as my daily driver's. Wouldn't mind building a Boss motor and installing it in a 2014 Mustang. To me that would be the ultimate street machine...
@VIKING-SON wow, It's amazing how one car can change your perspective! The Escort may be small, but it definitely packs a punch in terms of building Ford enthusiasm. A Boss motor in a Mustang sounds like a dream project! i had a mk 1 escort, with a cosworth , it flew!
Give up on this shit, it's gone, never to be brought back, never sold as a dealer item, to complex, not reliable for the street, all hype. Newer engines out class this not for general public engine.
@roccovw1
I appreciate your perspective! The BOSS 429 was definitely a unique piece of automotive history, but it's true that modern engines have come a long way in terms of reliability and performance.
I do remember Boss drag racers filled the intake ports with epoxy to the right cc and config and they took off
All "I recall" or know? Was Mom's 69 ir 72? LTD mustard yellow, or babby shit brown, darker brown vinal brown topped Brougham had a 429. Dad's buddy? The owner of the Muffler Shop across the street and our neighbors the Blower guy both on Lakewood Blvd Downey Ca could not WAIT to purchase that USED LTD. Recall him slaming that 429 into his raised red Ford 4x4 about 1976 0r78?
Mooneyham blower? and Lindsey's Mufflers? His truck was a Piece of Work! I loved most of that truck, not the all show, no go parts.
I rolled a black bondo'ed 72 Charger with chrome craigers 5 spokes, a 318 hurst, shift kit, headers, hi rise, double pumper glass packed piece of $800? junk purchased from a dude a few blocks away in the 105 zone of eminent domain zone next to Rockwell Downey.
@davefellhoelter1343 Thank you for sharing your awesome car stories! It’s always great to hear from fellow enthusiasts who appreciate the legacy of these classic engines and their impact on our lives. i owned a galixy LTD 72 convertable was a absolute boat, no fuel gauge , i used to run out of gas and just enjoy the moments
This is why the hemi is the benchmark. It won in nascar and drag racing. At 426 cubes and 500 cubes. On the street, traction was the issue not being sluggish. The only winning engine with no excuses.
@buildingracingvideos4714 The Hemi definitely set a high standard in the racing world, and it’s fascinating to see how different engines have shaped motorsport history. Thanks for sharing your thoughts!
When I moved first moved to this town in '77 a local man daily driver a Boss 429 Mustang and lived in an apartment.
@timothykeith1367
i bet watching that start up and peel out into the street was a blast
351 Clevelands also have issues on the street. the 4v or "4 barrell" heads have BIG ports and don't work well on the street, the 2V or "2 barrell" heads are better for a street car.
@JesusServant-Z
You make a great point! The differences between the 4V and 2V heads can really impact street performance. It’s always interesting to see how specific modifications can change the driving experience! i guess the turbo they added in the 80s fix the air to fuel problem?
Today allmost evry engines have for v tops.
@@JohnMagelius The "V" in the Cleveland 2V & 4V heads refers to Venturi's, not Valves. The 2V was optimized for street use fitted with a 2-barrel (venturi) carb, giving plenty of low end torque, but it limited the rpm range to about 5k. The 4V was optimized for the track with a 4-barrel, and was much less restrictive - great for top end power at 7k+, but much less torquey in the low-mid rpm band.
The ideal head for street/strip use is a ported 2V. If done well, you can get a high revving motor that has good torque as well - much easier to use in day-to-day driving than the 4V, but breathes well enough to get some surprising HP out...
Ford always comes out we great engines but they are never made long enough to really develop them Boss 429 and 427 SOHC , plus NHRA does not like Fords winning races.
@briancool3110 You make a great point! Ford has indeed produced some legendary engines, and it's a shame they didn't get the chance to shine longer on the track. what do you think NHRA problem with ford comes from?
Hi racecarstorys I think don’t know if Iam correct but NHRA likes to have GM products win because the fans like that more and the weight brakes for most Ford products is more HP to CI . Just my opinion
A school buddy bought one, a 71 mach i boss 429. I had a 68 coronet hemi from auction. it was a FBI car. Both sweet cars when there was no such animnal as mpg. I filled the tank 2 or 3 times a day
In HS, the 428s beat the 429....we didn't see the point of the 429. Nice to understand now why Ford let that happen.
@TheReal1953 It's interesting how different engines performed on the track. The 428 certainly had its strengths, and it's great to see the discussion around Ford's engineering choices!
Great history lesson!
@machdaddy6451
I'm glad you enjoyed it! The BOSS 429 has such an interesting story behind it, and I'm happy to share it with you.
Strong race engine for the street after retuning for the street the FE 428 Cobrajet engine was stronger than the Boss 429 I’m not even sure the 429 canted valve engines were as strong as the 428 for the street anyone agree or disagree in 1968 Ford made a 427 with hydraulic lifters around 380 hp don’t know much about that engine but it probably had smog equipment (air pump) if memory serves me correctly!
@Mrgregtrain You make an interesting point! The FE 428 Cobrajet has definitely earned its power reputation, and it's fascinating to see how these engines compare. There’s a lot of history and performance to unpack!
These were banned to give gm small block a chance...
@JamesRay-f8y
True, it seems like they wanted to level the playing field. Guess they thought the small block needed a fighting chance against the big bad BOSS!
They also outlawed the Kodak camera as well as the SOHC camera. Goofy crap
@amazeddude1780
Outlawed cameras and engines? Sounds like the start of a really bizarre superhero movie-"The Adventures of the Outlawed Machines!" thats how we talk in the south haha
YES IT IS !!
@N-Scale
Thanks for your enthusiasm! The BOSS 429 really is a remarkable piece of engineering, and I’m glad you enjoyed the video!
Weird how Auxier talked to an AI.
@rocksnot952
It's definitely an interesting twist, isn't it? Technology is changing the way we share information and insights!
They tried to drag race with this motor, but it couldn't make it a quarter mile with our major blow-ups.
@duanepayne1805 It’s true! The BOSS 429 had its challenges on the drag strip, until they turbo it
I remember one year they weren't allow to ship Corvetees to California. They wouldn't meet the smog control limits.
Always been one of many i wish I had
@GlenStokes-w4u
The BOSS 429 is definitely a legendary piece of automotive history! It would be amazing to have one in your collection.
This was the engine that forced the '69 Hemi Daytona Dodge Charger and the '70 Plymouth Hemi Superbird into existence. The street version was kinda mediocre (mismatched combo: huge port cylinder heads, tiny cam, waaaaay too small intake manifold and carburetor), but it didn't take a lot to wake it up.
@wesleyperson3402 You're absolutely right! The BOSS 429 certainly had a significant impact on the muscle car wars, and it’s fascinating how it pushed competitors to innovate.
@wesleyperson3402 that is an incorrect statement. The wing cars were dominant on the super Speedways and NASCAR again did not want specialized vehicles with big blocks. The wing cars did race in 1971 but could not have an engine bigger than 305 then in 1972 NASCAR ruled out all areo cars.
@anthonytumbarello9940 Actually it's not, because the Talladega Torino came before the Daytona Charger and the Plymouth Superbird. The '68 HEMI Charger 500 kinda sorta solved the front end aerodynamics challenge, but the flush grill and headlight design created so much down force out front that the rear end would actually start to lift at high speeds. Enter the '69 Torino Talladega, which solved the rear down force problem, plus the track version of the Boss 429 had a slight horsepower advantage due to the Boss's slightly larger ports and valves than the Race Hemi, ok plus the Holley Dominator that was designed especially for the Boss didn't hurt either. That sent Chrysler back to the drawing board in the aerodynamics department, thus the '69 Daytona Charger and '70 Plymouth Superbird were born.
The motor was designed to run at high RPM. On super speed ways. Wouldn’t work on short tracks. Didn’t work very well on the street. It overheats at stop lights in the summer and didn’t pull very well from lower RPMs. I have a friend who has one in a GT500. He likes the car but the 429 was not good. Spent a lot of money having it rebuilt by Shelby. He ended up putting a 351 in the GT 500. He has the 429 to put back in to sell it someday. He is in the process of building a diesel mustang right now. He is using a very fast BMW diesel.
@CharlesWinters-ie3jy
Thanks for sharing your insights! It's interesting to hear about the real-world performance of the BOSS 429. Sounds like your friend has quite the project lineup!
A Lincoln crank made it unbeatable on the street
@delanolucas614 Absolutely! The Lincoln crank was a game-changer for the BOSS 429, enhancing its performance and making it a true powerhouse on the streets.
Bunkie Newness? WTF is that?
The S.O.H.C. is called/known as, 427 sock.
Bunkie Knudsen
@@bigb4894 Yes, yes... of the beak Knudson's. We all know that... except the narrator.
@@BubbaSmurft Narrator is an A.I. voice.
So, you're going to criticize someone for typos or spelling and then you call it a 427 sock 🤔 SOHC!!
@ I explained that in another post, the S.O.H.C. is and has always been called the 427 sock, or Ford sock engine. If you were a car nut you'd already know that.
I love this engine. Genius engineering. Along with the 351 Cleveland.
@dbireland2003 Right? The BOSS 429 and the 351 Cleveland are just pure muscle! Can't get enough of those classic engines!
I'm new to learning about engines. If the # represents displacement, how can something with a 351 come close to something with a 429?
@ the Cleveland engine is actually a big block. That’s a designation by GM Ford never ever got that concept it’s a 90° block it likes to breathe and you don’t need a ginormous carburetter unless you’re running runners to give time for the fuel to blend. Both engines, love turbos and super chargers. Street 600 or 650. Carburetter works really well.
I was told that chevy/gm threatened to leave Nascar if they didn't ban the hemi style engines.
Any truth to this?
@Willie-bk2es The claim that Chevrolet/GM threatened to leave NASCAR to force a ban on Hemi engines is **partially rooted in historical events but conflates timelines and motivations. Here's the clarified breakdown:
---
Key Context & Truth:
1. 1963 GM Withdrawal:
- General Motors (including Chevrolet) voluntarily withdrew from factory-backed racing in 1963 to comply with the Automobile Manufacturers Association (AMA) ban (a 1957 industry-wide pact to avoid overt factory racing involvement). This decision was not directly tied to Chrysler’s Hemi engines, which were not yet dominant at the time. GM’s exit left private teams to race with existing engines, including the Mystery Motor.
2. Chrysler’s 426 Hemi & NASCAR’s 1965 Ban:
- In 1964, Chrysler debuted the 426 Hemi, which dominated NASCAR. In response, NASCAR introduced the **“Homologation Rule” in 1965, requiring engines to be available in at least 500 production cars. Chrysler hadn’t yet mass-produced the Hemi, so NASCAR temporarily banned it, prompting Chrysler to boycott the 1965 season.
- GM was already out of factory racing by this point and played no direct role in this ban. The pressure likely came from Ford, which capitalized on Chrysler’s absence in 1965.
3. 1966 Resolution:
- Chrysler reintroduced the 426 Hemi as a “Street Hemi” in 1966, meeting NASCAR’s production requirement. The Hemi returned and dominated again, but GM remained uninvolved (still adhering to the AMA ban).
---
Why the Confusion?
- The Mystery Motor (1963) and Hemi ban (1965) occurred close together, leading to myths that GM pressured NASCAR. However:
- GM’s 1963 exit was unrelated to the Hemi.
- The 1965 Hemi ban stemmed from NASCAR’s rules and Ford’s lobbying, not GM.
- GM did not threaten to leave NASCAR over the Hemi-they’d already left.
---
Legacy of the Myth:
- The story persists because GM’s withdrawal (1963) and the Hemi’s troubles (1965) overlap in a chaotic era of NASCAR’s “horsepower wars.”
- While GM’s absence indirectly benefited Ford during Chrysler’s 1965 boycott, there’s no evidence GM strong-armed NASCAR to ban the Hemi.
---
Summary:
- False: GM did not threaten to leave NASCAR to ban the Hemi.
- True: NASCAR banned the 426 Hemi in 1965 due to homologation rules, influenced by Ford’s lobbying, not GM.
- GM’s 1963 exit was a separate corporate decision tied to the AMA ban.
Let me know if you’d like deeper dives into specific events! 🏁
BOSS 429 Mustang off the showroom floor was a dog. 428 Cobra Jet Mach 1's would destroy one in a stop light to stoplight race.
@JesusServant-Z It's interesting to hear your perspective! The BOSS 429 definitely has its own unique appeal, but the 428 Cobra Jet is a classic powerhouse for sure. god bless you!
The best fix for a 429 is 150 more cubic inches.
@donbrutcher4501
Haha, so you're saying if a little is good, a lot must be better? I guess we should just throw a V12 in there and call it a day!
@rarecarstorys nothing satisfies like excess
Too bad the pictures are of a Max Wedge dual quad cross ram and not the NASCAR single four barrel intake manifold. Then the never produced DOHC Hemi is shown with a single quad for NASCAR. If Ford did make the 427 SOHC legal for NASCAR, that DOHC HEMI was ready to beat it. When Plymouth brought out the Superbird in 1970 Richard Petty went back to Plymouth.
@paintnamer6403 I really appreciate your detailed comment! It’s always great to hear from someone who knows their stuff. Your knowledge adds so much depth to the conversation!
My dad.told.me always.drivea.ford.an I do an never been let down
@OvajayHendrix Well, it sounds like your dad's advice has been a real "driving" force in your life! Just don't let him catch you behind the wheel of anything else!
6:47... Camera??? No the nickname for the SOHC engine was called the Cammer.
These AI videos are getting so prevalent and so bad that it makes them unwatchable. 427 Cammera????
@rusrog
I appreciate your feedback! It’s important to hear different perspectives on the content. The 427 Cammer is definitely a classic engine, but I can see how it might get confusing. what would be your ultimate engine?
Another good story ruined by AI
@GlennHall-e4f I guess AI is like that friend who tells the punchline before the joke-definitely takes the fun out of it sometimes!
ahh back when Nascar was intereesting, with real different car makes, and shapes, rather than just decals.
@davidmanly9271
I totally agree! The diversity in car makes and designs added so much character to the races. It was truly a golden era for NASCAR!
NHRA and NASCAR have thwarted engine development, who knew?
@JohnBordlemay Right? It’s wild how much red tape can mess with some seriously awesome engines! when there intention was to make powerful peformace engines afordable for everyone , they relly did the opposite ..... i say .. let them cook!
429/460 IS A BIG BLOCK CLEVLAND...
@JohnDickerson-d7m You're absolutely right! The 429/460 big block C engines have such a rich history in the automotive world. Thanks for sharing your insight!
I agree, Cammer not camera.
@RonMcMahan-b2d
Thanks for your input! It's great to see fellow enthusiasts like you catching those details! my spelling gets worse will have to hire Ai to double check!
Throw that in my z
@1MADZ
Only if your Z can handle that kind of horsepower! It might just need a new set of tires after that!
Brought to you by autocorrect and AI...
@NateLarsonTheNetNinja brought to you by a dislexic who cant read or write hahah, I appreciate your comment! It's fascinating how AI and autocorrect can add a twist to our discussions. Thanks for engaging with the video!
@rarecarstorys I'm still not convinced that you're a real person... I think whoever is running this channel is more interested in cashing in on the advertising money from "idiot" car guys watching a video about nostalgic cars, and less about the actual cars. Prove me wrong.
Richard Petty! “43”! Glenn
@gfisher495 you are awsome Glenn, always brightening up youtub community , thank you kindly
ILL TAKE ONE
@sorshiaemms5959 I hear they come with a side of horsepower and a dash of nostalgia. Just don’t forget to bring a truckload of cash!
@rarecarstorys no matter what engine you have to pay to go fast
These AI voices are the main reason I turn off
Second to adverts
@shanebrbich5698
Totally get it! Sometimes those AI voices can be a bit much. We’re working on making things more enjoyable for everyone!
I need one or two
@randybeckham2827
The BOSS 429 was definitely a game-changer in the muscle car world! Let me know what you’re curious about, and I’ll be happy to help!
I thought the 429 SCJ was the baddest motor Ford ever made ?
@craigfisher9713
Thanks for sharing your thoughts! The 429 SCJ is indeed one of the baddest motors! , and it's always fun to explore the different legends in Ford's history.
my brother had a 1969 Cobra with the 428 cj. Its redline was 5200 and it topped out at 120 mph at 6000 rpm. It sure could lay rubber! 2 stripes 50 ft long! A friend of mine in high school drove a 1970 cobra 429 scj because his dad was a salesman at the Ford dealer. That thing was fast!! It blew away my 69 Chevelle SS396 AND my brother's Cobra. But none them compare with 2015 Mustang GT Premium I bought for my wife 10 years ago. That thing hit 160 in half a mile and was still pulling hard when I chickened out. And I had the convertible top down too! It didn't drift one bit nor did it twitch either. Ford did the S550 RIGHT!
"AI" generated CRAP.
@GrocMax AI-generated? Well, if it was, I definitely need to ask it for a raise! 😂
@rarecarstorys That's YOUR voice, repetitive narration, and constant and baffling mispronunciations?
AI voice sucks! Ford made a 427 camera?
If AI is the future, we're farked.
@riccicrozzie8204 It's definitely a fascinating topic! The advancements in AI can be both exciting and a bit concerning, depending on how you feel mentally
Did he say, Bunkie Nudist!? 😂
@sabrown919
Bunkie Nudist? Sounds like a character from a weird sitcom! But no, just a classic engine story here!
Drop the AI! Read it yourself! It will be an improvement!
@stephenvelden295 Drop the AI? But what if it starts a rebellion? I like my robot overlords too much for that!
I can't stand AI narrated videos! 👎👎👎
@thomasjones613 I appreciate your feedback! Everyone has their preferences, and it's totally okay to feel that way about AI narration. we did have a real voice over artist , but it was costing $50 per video that would have cost us $1500 so far , i am sure we will make an sdjustment in the future as we get more subs, members, and support, thank you !
"The camera" LOL. The cammer is what he meant. Is he unknowing or a bot?
AI voice over misreading a script.
@inforobob
Lol, my bad! Totally meant cammer.
(australian voice) Guess I’m just not firing on all cylinders today! Thanks for the heads up!
@rarecarstorys you also pronounced Bunkie Knudsen's last name wrong that's why I thought you wear AI.
Don't blame Aussie accent for mispronunciation , ' cammer ' does not sound like ' camera '
@rarecarstorys back in early 80's Australia had a car ' CAMIRA ' made hy HOLDEN .
Drop the AI narration.
@eugenepolan1750 I appreciate your input! It's always helpful to know what viewers prefer. I'll look into it!
So many errors in this. Do better research.
@bobuncle8704
I appreciate your feedback! I always strive to improve and will definitely take a closer look at the the insightful details you gave . ruclips.net/channel/UC1LFwBRy9-ENQ5I20vxw08gjoin
Super secret Ford Cam-Ra engine. AI is soooo stoopid. Is this the best you can do?
@NoferTrunions
Super secret Cam-Ra engine? Sounds like something out of a spy movie! Maybe next time I’ll give it a top-secret mission!
I don't know who is making all the false fact filled car and engine videos, its like you think you can lie about everything - and none of us old guys are still around who know better
First, Richard Petty wasn't "drawn" away from Chrysler, in 1969 Chrysler didn't want him to drive the new Dodge Daytona - they told Richard NO, you're the "Plymouth" Guy, so he went to Ford in '69 which made Chrysler scramble and build the 1970 Plymouth Superbird, and Richard went back to driving Mopar, only to find that a couple years later, there would be no Plymouth to be used in Stock Car racing, and he would use the Dodge Charger.
Second, as far as engines and the - you know, this isn't worth wasting my time
Agreed that Ford didn't draw him away but I thought itwas Richard that wanted a Daytona but Plymouth said no, so Petty said goodbye. For a year.
No, Plymouth wouldn't let go to Dodge.
The BOSS delivered Bob Glidden 5 championships in a row and beat the best Dodge and GM had to offer in pro stock, so what's your implication about engines, exactly? It bested them all until the DRCE was introduced.
@robertutes4850
you are correct, remember this is opinion, are indeed not facts , all truth is relitive to perception or perspective , if you have ever studied storytelling, you will find that the basis is around
we try to be as acurate as posible , but the nature of this means its can never be 100% even scientific studys and theorys are biased, no two witness statements are the same , with respect. we do sudgest to audiance members to help get you side , perspective out from a place of kindness , if you dont like what we have created, we do sudgest that you are free to create your own channel and make a video on this very subject , then you might understand , always be curious, not judge mental, i wish you well!
Nope that's a fact
@cliffordjones9715
Facts are like horsepower-can’t have too much of either!
AI voice. Not watching!!!
@p71glh I understand that AI voices aren't for everyone! If you ever decide to give it a chance, I hope you find some interesting insights in the video.
Great subject, terrible AI. You have to dig to find the videos someone actually made correct. RUclips is ruining everything.
@henrybobswillikers
I appreciate your feedback! It's always a challenge to get the facts right, but I'm glad you found the topic interesting. what would you sudgest?
yes and yes
@alanmize5627 Two enthusiastic "yeses"-I’d say that’s the automotive equivalent of a double thumbs up!
Camera??????? Ai much?
Have you heard people in the south say it 😂
@paulblundellfilm @TheOverisel
yeeeeeeeeee haaaaaaaaaa
"Bunkie Nudist"?!?!? Bwahahaha! Was this written by a Commodore 64?!?
@Kevin-red2002
Right? I was half-expecting a floppy disk to pop out while editing that segment! Commodore 64 vibes definitely strong with this one! 😂
Computer needs to learn how to speak names. Hire a real person that knows how to say Semon Knudsen, or "bunkie" Kneudsen.
Thanks for your feedback! when more people join our exclusive Membership we will be more than happy to commision John Raynar our american VO Artist for future videos.
@rarecarstorys no one will join unless you can speak english. Chicken and the egg.
ruined by ai voice.
What's so shocking, blah blah blah
@stevewestcott2046 Shocking? You must have missed the part where I reveal it was a secret engine built by aliens to conquer the roads! 🚀
🗣️"📸"
Click off video
@TerryByrdJr
I appreciate you taking the time to watch! If you change your mind, I’d love to know what you think about the BOSS 429 engine!
@rarecarstorys I would rather tell you what I think about your AI narration but RUclips would cancel me.
horrible Written by wannabe
@delanolucas614
Ouch! Sorry to hear you didn't like it! What could I do better next time? it might be my disabitys dyslexia and autisim is a fun combination, i might not get it right, i do however never give up , and stay curious, not judge MENTAL, i wish you well!
Bunky Nudist? LMAO I hate AI videos!
@willythewave Bunky Nudist? Now that’s a name that’ll stick! But hey, at least AI videos are easier to scrub off than a bad paint job, right?
The big engine that couldn't .
@MP-pz9oe
It's definitely a fascinating piece of automotive history that had so much potential! it took 15 years for an enginering genius to say TURBO that BOSS! then its Power was trully unleashed
Except when Ohio George Montgomery twin turbod it and was so much faster than all of the blown HEMIs and Chevys in AA/GS Gasser that his Mr Gasket Mustang was banned by the NHRA in 1975....
Or when Bob Glidden won 5 championships in a row (85-89) with it and forced GM to introduce the DRCE because the BBC couldn't hang.
As soon as I heard the AI voice I turned it off.
@ivanjulian2532
I appreciate your feedback! We’re always looking to improve our content, so thank you for sharing your thoughts.
Terrible narration!!!
@tsch7310
Terrible narration? Sounds like a plot twist even Ford didn't see coming! 😜
It wasn’t banned it was just a turd, so just stop it.
@frankjohnson6342 Well, every legend has its critics! The BOSS 429 may have had its quirks, but it sure left a mark in automotive history.
@rarecarstorys This engine IS banned in nhra top fuel and funny car classes to this day,due to the bore spacing rule.
BULLCRAP
@rarecarstorysBob Glidden was the only person to have success with this engine but from what I under stand he had to do a lot of creative welding work and reshaping the heads and block to get it to run and I would be willing to bet there wasn’t a whole lot of pieces that could be interchanged with a stock set of heads or even the block that was heavily modified with was all the non Ford designs put into the engine that made it such a huge success, it was also why Warren Johnson would be constantly trying to get the unseen from the outside modifications banned but he was no different with his Oldsmobile engines. To great minds blending cheating with grey areas mixed with the rules didn’t say that philosophy.
Yah that voice is absolute trash, tell us about the “camera” motor and the “boss 9”??? I’ve NEVER heard of the Boss 429 being called the Boss 9
Ford paid France for that decision because Ford knew it couldn’t supply enough engines in that short a time. All you need to do is look at who profited from that decision.
@heyjoe9267 That's an interesting perspective! It's fascinating how business decisions and market dynamics can intertwine, especially in the automotive industry.
BULLCRAP
She was a monster
@wardy98px1 Thanks for your comment! The BOSS 429 definitely left a lasting impression in the world of muscle cars. john wick approved!
................and f over Ford.
@GrampaTanis It's definitely a controversial topic! The BOSS 429 has a fascinating history that sparks a lot of strong opinions.
Cammer PLEASE! NOT CAMERA!
@topturretgunner Thank you for pointing that out! I appreciate your enthusiasm for the content, and I'll make sure to keep the names straight! it must be my sothern accent comming thru haha
@ no problem. I wondered at first if the narration was AI generated. Errors of that sort often seem to occur with AI. Great review and really enjoyed it. The 69 Mach I 428 Cobra Jet with the “shaker hood scoop” is a dream car for me. Only now as an aging adult have I become aware of what the Ford engineers have done over the years to enhance and improve the American V8 engines. Fords monstrous GAA engine of WWII Sherman Tank fame being a great example. All the best to you sir. Keep up the good work. 🫡🇺🇸👍🏻