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Author Topic: Oh-oh! Torque converter troubles  (Read 350 times)

Stan Paralikis

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Oh-oh! Torque converter troubles
« on: November 20, 2008, 03:00:58 AM »

I just relized I propably have a huge problem with my engine swap.
 
The motor (and thus the crank): 1973 440 with forged crank.  The tranny is a 1976. 
 
The cast crank torque converter is NOT compatible with the forged crank.  Right???
 
 And what about the flexplate??
 

 
 http://www.imperialclub.com/Repair/Transmission/Interchange.htm
Commando12008-11-20 08:27:28

Stitcherbob

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Butch Houghton

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Oh-oh! Torque converter troubles
« Reply #2 on: November 20, 2008, 05:55:33 AM »

Simple answer....Yes.  remove the weights.  Flexplate should be neutral in your case so you're good there.    Your old motor had the thick Damper,  right?    Should say "for cast crank only" cast into the front of it.   That damper & the weights on the converter handled the balance.

Butch


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Stan Paralikis

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Oh-oh! Torque converter troubles
« Reply #3 on: November 20, 2008, 06:01:35 AM »

Quote from: stitcherbob
http://www.moparaction.com/Tech/questions/SHAKER_440.html
 
Oh great one of much wisdom....

Stan Paralikis

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Oh-oh! Torque converter troubles
« Reply #4 on: November 20, 2008, 06:03:51 AM »

[/QUOTE]
I love SIMPLE answers.
Yes.  Old motor had cast crank/thick damper.
New motor has forged crank/reg.  damper.
 
I am sooo glad I remembered this before I installed it!

Butch Houghton

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Oh-oh! Torque converter troubles
« Reply #5 on: November 21, 2008, 06:05:47 AM »


Course now would be a good time to upgrade the converter too.....

What we  do when we don't want to spend a lot on a converter is go up to the local driveline supply place ( where we get our T-flite rebuild kits ) & get a re-built Dayco converter.   If we want a bit more stall we ask for a factory Hi-stall version .   It's a 11" version instead of the 12" like you've got there.   Justa bit more stall & still locks good with low gears.

They usually stalled right around the 2200-2400 mark.    Still a factory converter.   You'rs is most likely gonna stall no more than 1800.   Not a bad thing if you're running just a bit of a cam.

You can get it as a neutral balance & be done with it too.

Butch

HemiFury2008-11-21 11:07:16
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Stitcherbob

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Oh-oh! Torque converter troubles
« Reply #6 on: November 21, 2008, 06:49:42 PM »


Quote from: Commando1
Quote from: stitcherbob
http://www.moparaction.com/Tech/questions/SHAKER_440.html
 
Oh great one of much wisdom....




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