Re: Automatic Transmission questions for the experienced
[Re: sthemi]
#2275858
03/25/17 10:52 AM
03/25/17 10:52 AM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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You leave out the most important part of deciding what to use when rebuilding your transmission.
power levels thru the trans.
Stock 2bbl 318, build it stock with minor durability tweaks.
Twin turbo 408 pushing 750hp, better upgrade.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: Automatic Transmission questions for the experienced
[Re: sthemi]
#2276022
03/25/17 03:19 PM
03/25/17 03:19 PM
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Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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What are the dark grey/green frictions? I think the High Energy version from borg warner? Bulk Part messed up an order and sent me them insted of the Alto Red clutches and I have never used them. How good are those?
Last edited by 451Mopar; 03/25/17 03:27 PM.
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Re: Automatic Transmission questions for the experienced
[Re: sthemi]
#2276076
03/25/17 05:22 PM
03/25/17 05:22 PM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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I built my 727 in my 63 with all stock Mopar clutches and plates. And I use the Mopar seal kit also. Since I worked at a Dodge dealer for 24 years and did trans work I have some 727 clutches around and I use them. The only parts in my 727 that are not stock Mopar parts are the rear sprag (overrunning clutch) , the valve body as I use a Turbo Action reverse manual valve body and the converter which is a 9.5 Dynamic unit. Its a street car I race once or twice a year and its been holding up great since 2006. About the only other mod is I blocked the accumulator. Runs in the 10's and has not given me any trouble. Ron
Last edited by 383man; 03/25/17 05:23 PM.
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Re: Automatic Transmission questions for the experienced
[Re: sthemi]
#2276437
03/26/17 12:57 PM
03/26/17 12:57 PM
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Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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Thanks transman, the Jeep has a 5.2 Magnum swap with a stock 727 from his 80 ramcharger. The 727 build is for my stock 1979 360 Warlock..I cant stand the lockup trans in it and I am swapping the engine to a rebuilt 360 from a 74. Gonna do another non lock up trans for it at the same time. Nice. Have any pictures of the Warlock? I haven't seen one in 30 years. If you lived closer, I'd give you a 4-wheel drive 727. I have two just sitting around missing the transfer cases.
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Re: Automatic Transmission questions for the experienced
[Re: dogdays]
#2276581
03/26/17 04:19 PM
03/26/17 04:19 PM
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Joined: Mar 2011
Posts: 3,070 Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,070
Michigan
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There is nothing weaker in a 2bbl trans than a 4bbl trans for the same model year. The main difference between them is to accomplish shift quality and shift timing. Between years there were changes - we made improvements for high horsepower and torque and durability, but a properly built 383 2bbl trans behind a 440 drag motor making north of 500 hp is a piece of cake.
Think about this for a second. No one used billet parts - none - back in the 70's and 80's and those drag cars were going low tens and high to mid 9's. Race converter and a TA Cheetah was the "soup for the day" and no one was failing units. And 99.9% didn't have bolt in overrunning clutches either. Everything was relatively new back then - parts wise in the transmissions being used.
The point i am trying to make - most guys can successfully use a "standard" 727 if it is properly built. The biggest obstacle is understanding what hard parts to throw in the garbage versus reuse.
The best core to start with is one that came from a car that was crashed and before it was crashed came from Ma or Pa kettles car - never got beat on and probably never saw overheat conditions. Sorry for the verbose reply - but you asked.
Probably the vast majority of street racers, cruisers, bracket cars can use a 4 disc front drum, 3 or 4 planetary pinion carriers, flexible front band, non- billet servo parts IT YOU USE GOOD PARTS.
As for the 904, 998, 999 - number of clutches and band widths - the main unit's differences.
Then again there are guys (and gals) that can ruin an anvil in a sandbox with a rubber hammer.
Last edited by Transman; 03/26/17 04:25 PM.
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Re: Automatic Transmission questions for the experienced
[Re: sthemi]
#2276687
03/26/17 07:17 PM
03/26/17 07:17 PM
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Joined: Mar 2011
Posts: 3,070 Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,070
Michigan
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Understood sthemi - next time i'm that way i'll stop by and pick it up if you want to sell it. ( i can't seem to get the smiling face to post here ). My freind had a Lil Red and towed his 64 Plymouth drag car with it - those pipes sure did roar when he got on it from a light. Another friend has it now and it sets around not getting much use - i told him to sell it so someone else could enjoy it.
Last edited by Transman; 03/26/17 07:20 PM.
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Re: Automatic Transmission questions for the experienced
[Re: dogdays]
#2276704
03/26/17 07:49 PM
03/26/17 07:49 PM
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Joined: Jan 2003
Posts: 25,767 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,767
Rio Linda, CA
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Needs to be pointed out here that Mopar transmissiions were built to9 the original engine's torque output. Or maybe overbuilt.
The INTERNET, the MISinformation superhighway
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