Is the 727 TorqueFlite a good transmission?
15 Tips to Improve Your 727 Torqueflite Trans! When it first appeared in 1962, the 727 TorqueFlite automatic transmission immediately established a reputation for strength, efficiency, light weight, and superior performance compared to the competition.
How does the TorqueFlite work?
Our TorqueFlite is from a 1970 383 two-barrel application. The pins locate coil springs, which help engage Drive gear. The more springs in use, the slower the engagement of Drive, which gives Second gear more time to release, thus reducing the 2/3 overlap "clunk" common to high-performance TorqueFlites.
Why did my 727 lose reverse all of a sudden?
If you lose reverse all of a sudden in a 727, the stock servo is likely the culprit. Assembly lube is a must. NEVER install transmission components dry, the tranny fluid does not get circulated through the transmission at first start up, a dry install is a dead tranny.
Is the reverse Servo on a 727 worth it?
This is one of the best upgrades you can make on a 727. Special Thanks to Wes Bene and Raymond Cabat at Transtar in Oklahoma City for getting these to us in a rush. The reverse servo does not do anything for performance, but it does eliminate the breakage often found in reverse gear.
Is the 727 TorqueFlite a good transmission?
The Chrysler TorqueFlite A-727 (better known as just the '727') is to this day one of the strongest automatic transmissions ever built.
How strong is a-727 transmission?
The strength of the 727 is rarely contested. From the factory, they came against engines ranging up to the 426 Hemi. They are unusually strong transmissions, seeing service with hotrodders and heavier truck applications. The duty range of the 727 is often likened to the GM TH400 and Ford C6 automatics.
What ATF to use in a-727 TorqueFlite?
ATF+4ATF+4 is the recommended replacement for ALL Torqueflite transmissions, per Chrysler.
How can you tell if a-727 is a TorqueFlite transmission?
1:122:04Identifying Mopar A727 versus A904 - YouTubeYouTubeStart of suggested clipEnd of suggested clipSee how it dog legs out like that that means this is an a727 transmission i don't have an a904 handyMoreSee how it dog legs out like that that means this is an a727 transmission i don't have an a904 handy but i did have somebody take some pictures of one this is the view from above. You can see here
How much HP can a 727 handle?
The 727 is a relatively simple piece when compared to other automatic transmissions, and its strength is a function of that simplicity. We've put stock TorqueFlite transmissions behind big-blocks pushing upwards of 600 hp and found they not only survive, but perform quite well.
What is the strongest GM transmission?
10L90EThe 10L90E is by far the biggest and heaviest modern automatic transmission in GM history, but it's also the strongest and offers amazing performance and economy when matched with a Gen V LT engine.
Can you use Type F transmission fluid in a Dodge?
RAY: If you put Dexron, Mercon or Chrysler 7176 transmission fluid in just about any transmission, it will perform just fine. That's because all of those are what are called "friction modified" products.
How do you drain a 727 transmission?
0:004:43Changing the fluid/filter on a Torqueflite A727 Transmission (84 ...YouTubeStart of suggested clipEnd of suggested clipAnd then work your way. Over. And then drop it. Down once most of the oil has leaked out of one sideMoreAnd then work your way. Over. And then drop it. Down once most of the oil has leaked out of one side. First. I'm gonna move the pan a little bit.
What is a 904 transmission?
The aluminum 904 was first introduced by the Chrysler Corporation in 1960, and is a design that evolved from the Chrysler PowerFlite, which was a two speed automatic, and then the cast-iron three-speed TorqueFlite which was durable but heavy.
How much fluid does a 727 transmission hold?
I put 6 quarts in a new rebuild ... that will be enough to get it started and all lubed up.
What did the 46RH come in?
The 46RE can be found in a number of different rear wheel drive Chrysler products from 1995 through 2002, and some early-production 2003 Dodge Ram pickup trucks that had the 5.9L Magnum V8. In its previous iteration, the 46RH was found in earlier vehicles from 1990 through 1998.
How do you rebuild a 727 automatic transmission?
11:411:18:01Torqueflight 727 Rebuild Video - YouTubeYouTubeStart of suggested clipEnd of suggested clipTake the snap ring off the end of the output shaft. Here. And don't forget any thrust washers thatMoreTake the snap ring off the end of the output shaft. Here. And don't forget any thrust washers that may be on the end of the shaft. We can pull the front planet assembly that's the ring gear.
mmissile Well-Known Member
Okay, I know this is subjective. I'm looking for a 727 [not 904] for my car. Must handle 1000hp, easily...have a brake, and clean neutral. Let's hear it guys....and why.
mmissile Well-Known Member
I'm looking to buy a complete trans. $$ isn't in the equation....so I don't care what people pay. Anybody have good-luck/longevity with a complete trans from a known builder?
dvw Well-Known Member
John Cope At CRT or Rick Allison A&A. I build my own. Build is similar to SSR except I use stock input and ouput shafts. I prefer the aluminum drum. Works well in my applications 850hp Sb turbo, 900hp bb
67 coronet Well-Known Member
i have used John Cope's stuff in several cars.great guy to deal with and quality is spectacular.
SUPERSTOCKRACER Well-Known Member
I'm looking to buy a complete trans. $$ isn't in the equation....so I don't care what people pay. Anybody have good-luck/longevity with a complete trans from a known builder?
mmissile Well-Known Member
I wasn't asking about how much you have invested in your fleet of transmissions. I've been doing this 45 years. I know what good parts cost....but want to know who builds a good/reliable trans. Things/people change constantly.
SUPERSTOCKRACER Well-Known Member
I wasn't asking about how much you have invested in your fleet of transmissions. I've been doing this 45 years. I know what good parts cost....but want to know who builds a good/reliable trans. Things/people change constantly.
What was Chrysler famous for?
Chrysler was famous for building torque-monster V8 engines during the golden age of the muscle car, with the 440, the 413 Wedge, and the 426 Hemi all stealing more than their share of the spotlight. Less celebrated is the transmission that backed up each of these high performance engines and ensured that all of that hairy horsepower made it to the ground without detonating the driveline along the way, especially as drag racers began to transition from fragile manual boxes to tougher, and more consistent, automatics.
What transmissions did the 700R4 offer?
The GM 700R4 and 4L60E offered a quantum leap over past automatic transmissions from the General.
Can a 727 torquelite be bolted to a V8?
Today, there are a number of aftermarket companies that manufacture adaptors that allow the 727 to be bolted to the small block Chevrolet V8, a long list of straight six and V6 engines, as well as older Chrysler, Dodge, and Plymouth models that pre-date its 1962 manufacture. The best news for those seeking to install a TorqueFlite 727 in their project vehicle is that modern design has eliminated the need for the stronger Hemi and Six Pack internals, as existing friction materials are much stronger than what was available to Mopar engineers 60 years ago.
Can a 727 be built cheaply?
This, combined with an enormous selection of additional upgrades and rebuild parts, means that affordable, easily-found 727s can be inexpensively built to deal with precisely the amount of horsepower their owners plan to throw their way.
What are the weak points of a 727 transmission?
Servos- The forward and reverse servos in the 727 are particular weak points. This is what applies the forward and rear bands inside the transmission. If these break, you lose the ability to drive, which happens a lot on these transmissions. It is the single biggest weak spot on this transmission. We upgraded our servos with a set of billet servos from our local Transtar transmission component supplier. The forward servo increases holding power by 11% and comes with a heavy duty strut band. The reverse servo simplifies the application and eliminates the breakage issue.
What clutches are used in a rebuild kit?
Clutches- There are several levels of clutches, determined by their color. Blondes are light-duty clutches. This is what you would find in a stock transmission and stock rebuild kits. Don’t use these, they do not have the holding power you need. Moving up the chain are high-energy clutches, Red Eagles, and Raybestos Blue Line. These clutches provide increasing levels of holding power and are made of Kevlarmetallic blends. Most of the time, Red Eagle clutches are good for just about anything, but monster power needs the Blue Line clutch, which has the most hold of them all. Our rebuild kit came with blondes, but we swapped those out with some Alto hi-energy clutches.
What is torque converter?
Convertor- The torque convertor is spec’d by the engine and not the transmission. The convertor needs to match the camshaft and gearing of the car. For our 727 (which will sit behind a 600-hp 383 Mopar), we picked up a Street Fighter convertor from TCI. This should provide a 3000-stall, which will put the engine right in the middle of its power band.
What is Kolene steel?
A Kolene steel is an otherwise stock steel plate that has been treated with a salt bath nitriding process. This increases the nitrogen content in the metal, giving it better wear and fatigue resistance to the tune of 200-500% over standard steel. If you have the option, pick up a set of these, they are better.
How many designs are there on a 727?
There are 4 major designs on 727, most of the internals are the same, but there were changes along the way that require specific parts and setting for that year range of transmission. We set out to show you a few of the tips and tricks for building a high-horsepower 727 transmission.
What is the steel plate between clutches?
Steels- between each clutch (there are several clutches in each pack), rests a steel plate. This is essentially the flywheel to each clutch. With use, these see a lot of heat and eventually they warp and glaze over. There are two main types of steels- stock and Kolene.
What is the best clutch for monster power?
Most of the time, Red Eagle clutches are good for just about anything, but monster power needs the Blue Line clutch, which has the most hold of them all.
How much rpm does a 500 HP motor need?
And besides, that 500hp isn't off the line, it isn't until you most likely hit 4500rpm or above. Use an 11 inch torque converter, gives you about a 2000rpm stall and will help run on the street a little better.
What is the limiting factor of transmission?
Agree torque is the limiting factor on transmission - torque determines the force exerted on various components - torque and force related directly through radius of the element only. HP is a function of RPM as well - RPM does not matter ... to a reasonable point.
What transmission did Ford use for H.D. towing?
At the time the 727 was THE transmission for H.D. towing GM & Ford had weak transmissions.
Why do you need a shift kit?
A shift kit increases the line pressure so that much power doesn't slip the clutches and bands as easily.
Did Dad take the 318 out of a 61 Plymouth?
Just for reference, Dad did take the 318 out of a '61 Plymouth station wagon, and put a 440 in there for the purpose of hauling a travel trailer. May have installed a transmission cooler, but I don't know for sure. This was in the early '70's, IIRC.
Can street tires hurt a 727?
If you have street tires on a Valiant you won't be able to hurt a 727 very much. Slicks and traction compound on a drag strip and you'll grenade it instantly.
Can you rebuild a 727 shift kit?
More clutch plates and more planetary gears can handle more torque and power. Not sure if yours is original to the car or if you know what kind of engine it was originally delivered with.
