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TF 727 question |
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kingsX 
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Joined: Jan/20/2011 Location: Holland, MI Status: Offline Points: 343 |
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 Topic: TF 727 questionPosted: Jun/07/2018 at 9:13pm |
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Alright guys, I’ve got a 73 Javelin. Currently running a fairly built up T5 BUT I’m building a stroked 401 with a supercharger. I’m concerned that the T5 wont hold up. (I’m sure it wont if I can get it to hook up). So I found a sweet deal on a 727. Can I just get an auto brake pedal for my car or do I need a new rod going to the MC too? Power brakes. I’m planning on building this trans over the winter. Is there anything anyone can recommend to make it bulletproof proof? The new motor should be around 800 HP.
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73 AMX Javelin PC
 
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PROSTOCKTOM
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Joined: Jun/20/2010 Location: Indiana Status: Offline Points: 2458 |
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Posted: Jun/08/2018 at 1:10am |
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If your going to be running 800Hp I would skip the 727 for a Turbo 400. It's easy to get a bullet proof transmission with just a few parts and doesn't require the throttle pressure rod and kickdown is electric. Or just upgrade the manual and enjoy overdrive for cruising.
Tom
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WesternRed
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Joined: Aug/03/2010 Location: Australia Status: Offline Points: 5807 |
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Posted: Jun/08/2018 at 1:23am |
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You can just take the clutch pedal off and run with the manual brake pedal unless you think you will need both feet to stop it.
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White70JavelinSST
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Joined: Aug/08/2012 Location: Minnesota Status: Offline Points: 4866 |
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Posted: Jun/08/2018 at 1:39pm |
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I pulled a set of auto pedals out of the White70 and hung the clutch pedal/brake pedal assembly using the master cylinder pushrod from the auto pedal. It should work retro as well.
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70 Javelin SST, second owner, purchased 1972
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kingsX
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Joined: Jan/20/2011 Location: Holland, MI Status: Offline Points: 343 |
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Posted: Jun/08/2018 at 5:17pm |
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What’s it take to hook a turbo 400 up to an AMC motor?
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73 AMX Javelin PC
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WesternRed
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Posted: Jun/08/2018 at 5:45pm |
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A Jeep cased TH400 trans converted to 2WD on the output side, a press in ring in the crank for the converter snout and probably a TH400 flex plate, but at your level would may want a decent aftermarket flex plate anyway.
Of course if you put a manual valve body in the 727, you don't have to run a pesky kickdown linkage. At 800 HP you will be looking for a pretty well built transmission. Other options might be Powerglide, T56 Magnum, TKO.
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pit crew
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Posted: Jun/08/2018 at 8:48pm |
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And you may want to grind open the speedo location so you can put in a speedo. The Jeep ran the speedo from the transfer case so the speedo location in the TH400 case was not drilled. Easy job to do.
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 73 Hornet - 401EFI - THM400 - Twin Grip 20 |
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Mopar_guy
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Posted: Jun/09/2018 at 11:33am |
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It'll be cheaper to keep the 727 if it's an AMC version. They're pretty hard to beat already but the throttle valve cable could be tricky with a blower but it's been done before. A reverse manual valve body to eliminate that cable though.
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mixed up
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Posted: Jun/10/2018 at 6:27am |
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the 727 is a very good trans for high hp if built to handle it remember they put this behind 440 hemis and the Cummings so they can handle torq and the parts are cross over from Chrysler cheap and easy to get a good book you can buy to give you a idea of what it take is Torqueflite a727 transmission handbook by carl h munroe its good reading thing that come to mind for a bullet proof trans are the planetary the clutch packs front pump tha torq covertor is the prices part you need to buy good luck on the project
don |
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69 amx 290 auto
65 220 290 4spd 80 ford fairmont |
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kingsX
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Joined: Jan/20/2011 Location: Holland, MI Status: Offline Points: 343 |
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Posted: Jun/10/2018 at 7:12am |
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Thanks for all the advice guys!! I appreciate it.
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73 AMX Javelin PC
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