Rare Little Known Facts about the 440 Six Pack / Six Barrel Engines! Mopar Rare Facts

This video includes rare Mopar facts about the Mopar 440 Six Pack and 440 Six Barrel engines.

Check Out More RARE Mopar Videos:

**Enjoy Mopars? Don't forget to subscribe!**

Legal Disclaimer: All the information on this YouTube Channel, Ultimate Muscle Car, and videos, is published for general information purposes only. Ultimate Muscle Car does not make any warranties about the accuracy, completeness or reliability of this information. Any action you take upon the information you find on this channel, Ultimate Muscle Car, and videos is strictly at your own risk. Ultimate Muscle Car will not be liable for any losses and/or damages in connection with the use of our channel or videos. This channel, Ultimate Muscle Car, and videos does not encourage or approve of anyone speeding, street drag racing or driving recklessly. None of the individual contributors, system operators, developers, sponsors of Ultimate Muscle Car nor anyone else connected to Ultimate Muscle Car can take any responsibility for the results or consequences of any attempt to use or adopt any of the information presented on this Youtube channel or videos. Always consult with an automotive specialist prior to making any decision related to an automobile. Videos on this Youtube channel, Ultimate Muscle Car, are written and produced, in part or in whole, by nonprofessionals. Even if a statement made about mechanical, engine, production numbers, specifications, values, performance, insurance, body panels or advice is accurate, it may not apply to you or your automobile. The automobile production, specifications, values, insurance or performance information provided on Ultimate Muscle Car Youtube channel is, at best, of a general nature and cannot substitute for the advice of a mechanic or other professional (for instance, a qualified automobile appraiser, insurance broker, automotive dealer, detailer, restoration specialist, body panel repairman, paint sprayer & so on). Ultimate Muscle Car Youtube channel is not a mechanic, auto dealer, insurance broker, restoration specialist, detailer, automobile appraiser, paint sprayer or automotive body repairman. Nothing on this Youtube channel, Ultimate Muscle Car, should be construed as an attempt to offer or render a professional opinion in the practice of appraising, mechanical and body repair, dealer or insurance.

[willgallatin]

I traded to get a car bought at police auction in the 80's. It was a '72 fury III police car with a 440 6 pack. Learned later the motor came from a '70. What a beast off the line. Would pass anything in the area, except a gas station.

[BrandonLeeBrown]

There was a desire to use hydraulic lifters in the 426 Street Hemi in 1968, but Chrysler was unsure how the lifters would wear with the Street Hemi valve springs. They developed low taper lifters and a matching camshaft and assembled them in one 1968 Charger R/T and one 1968 GTX, with the six barrel intake and Holley carbs from the tri-power 427 Corvette. The two cars were given to two Chrysler execs to drive daily for 12 months, then Chrysler examined the camshafts and lifters from those two cars. Chrysler still didn't want to risk hydraulic lifters in the 426 Street Hemi without more testing. The 1969 A12 cars were marketed to see if any excessive lifter wear occurred. After the 1969 A12 cars, it was decided to use hydraulic lifters in the 1970 426 Street Hemi. The Six Pack connecting rods were originally designed for the 1964 Chrysler 300K, with the optional 390 horsepower, solid lifter, cross ram 413 engine. The standard 64 300K engine was a 360 hp 413. Chrysler designed a 383 Six Pack for 1971, but it wasn't ready in time for certification. It was then planned to make a 1972 Six Pack 400 with high compression, but the low compression requirement of the 1972 killed the 72 400 Six Pack engine. All three Six Pack intakes sold by Edelbrock were designed by Chrysler. The stated size difference between the 427 tri-power carbs and the Mopar Six Pack carbs is due to the CFM being measured using 4 barrel flow for the Chevy carbs and 2 barrel flow for the Mopar carbs. They are the same size carbs. I have a photo of a prototype Six Pack 383 engine. The 1963 Chrysler 300J engine was rated at 390 horsepower, but has standard weight connecting rods. Some 1970 440-6 engine got aluminum intakes, but most were sold in Florida, as the 1969 aluminum intakes had cold weather complaints.

[rodypma]

Thanks for dispelling some of these myths, the farther we get from the 60's and 70's the more some of them grow. I know a Hemi in the right state of tune was almost unbeatable but I also seen some pretty fast 6-packs back in the day!

[novawagon]

Back in 1974 I ordered a Racer Brown SS H 44 cam from Direct Connection and was told that I should also buy a set of 6 pack rocker arms because they were thicker around the ball atea and would keep the push rod from poking threw the rocker. It was a good cam, worked very well and sounded awesome.

[mikeg]

Chevy guy here, but those 440s sound great….love them.

[jamesblair]

A ton of low end torque isn’t necessarily your friend unless you were running slicks, or raced from a roll. We always used standing starts, and most guys had the biggest tire the could get under the car, air shocks were mandatory. My secret was locally made recap tires, they were skinny, usually 7.75x14. They were super soft, usually white walls, and they didn’t intimidate anyone, but they got the job done. We would take a nice pair off the used tire rack where I worked, mount them on the stock steel rims on Friday, race over the weekend and by Monday they were back on the rack for sale. Sorta like the race on Sunday sell on Monday saying.

[timothygreen]

Absolutely the best most informative video I have ever seen about mopars. Great job. 💥💪🔥🏁

[JC-fmps]

I had a, 64 Plymouth Sport Fury 440. It was a monster. My wife hated it. Sold it in 2000. I sure miss it.

[xrcoug]

Nice video. Next time I see a 72 charger or Satellite in a junkyard I will probably be the owner of a time machine!

[tnhkzmfreedom]

I have a book that states the 440 six barrel cam had the same specs as the 383 magnum. The only difference was the 440 cam used 3 bolts where the 383 cam used 1 bolt.

[ursirius]

The Mopar guys I knew in the 70s and 80s preferred the 440 over the hemi. The main reason, hemis were a pain in the ass to keep tuned. But with a little bit of tuning the 440-6pack would run with the hemi without messing around with it every Saturday in your driveway.

[toddbraddock]

Great video I'm building a 512 6 pack currently.

[randylear]

I just rebuilt my 70 440-6. I used a high volume oil pump and deep 7 qt. Milodon pan. Aluminum heads with a 484 purple shaft cam kit. Cast iron six barrel intake and stock 70 manifolds. Compression is 10:1. Engine fires right up every time and it puts out 90 lbs. of oil pressure cold. The rest of the car is being restored and I should have it on the road sometime this year. Thanks for the tips and info on this legendary engine.

[Randyth]

Interesting trivia fact, the six barrel air cleaner will fit a 67 corvette 427 tri power and a 62 thunderbird 406 3-2 barrel setup! I had all 3 at the same time and tried it!

[drewbuleczacowboycongress]

I had the 72 with the 440 six pack. Had the horizontal indents in the door, satin black raised section of the hood, red, vinyl top and hideaway head lights. I was a Pontiac nut but this buddy of mine kept nagging me to buy this Charger. Said very few were made. This was back around 1981-82. Same hood, color and top like at the 3:35 mark

[ragtowne]

I was in high school in 1970 and a classmates father owned a Chrysler dealership (Mancini Motors) - he drove a 440–6 Challenger that his father had the dealership mechanics “hop up“ – that is the fastest car I’ve ever ridden in the very definition of “putting you back in the seat”

[michaelbechtel]

Yes thank you for clearing up questions I had did not know About the difference between 69/70 six bbl rods, im doing a E 440 H.P. motor, a non A12 car but the 440 is almost correct in every way like a 6bbl engine except for the numbers, thanks for the info.

[julieanddavidmyers]

We had a 1975 power wagon with the 4 barrel Rochester carburettor. Great truck, great towing rig. 10mpg wether driving or towing

[pughoneycutt]

I knew a guy who bought a 69 440 six pack, had a more radical cam installed which killed the vacuum operated 2 extra carbs and actually slowed the car down. Moral is you need a combination of parts that are designed to work together

[commandertopgun]

Wow, this is an insanely informative video, love it & absolutely appreciate it, love all your videos & channel, it's aptly named Ultimate Muscle Car. keep up the incredible job.