Author Topic: 1969 340 to a hemi torque converter.  (Read 6978 times)

Offline transman

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Re: 1969 340 to a hemi torque converter.
« Reply #15 on: October 25, 2014 - 10:43:09 AM »
now this is making sense........  :grinyes:

Transmission shops (not all) will use the term HEMI to try and impress you with the word and charge you accordingly.  Your corner transmission shops typically have little knowledge on performance converters. The HEMI converter is kind of a rare bird, and a converter rebuilder will ask for you to send in the core for rebuild, as they're hard to find.

The pilot size (or snout) are all the same size on a later 727.  The converter hub has been the same size since 1962.




Offline Denison636

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Re: 1969 340 to a hemi torque converter.
« Reply #16 on: October 28, 2014 - 07:58:09 PM »
Figure I give a update. Come to find out I got bent over when I built my 340. The crank in it is a steel 273 crank. I had I speced out to a 340 thinking it is original. So I got a zero balance 273 crank in my 340 and now can't get a converter to fit. The polite on the crank on a 273 is ruff dem of 1.545" and all other mopar small blocks are 1.810.
Hope TCI can make a unit to fit.
Its just a little 340 with a miss

Offline Denison636

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Re: 1969 340 to a hemi torque converter.
« Reply #17 on: October 29, 2014 - 05:49:14 PM »
Well can't get a converter due to the stater in the tranny so motor is coming out. I have a shop here that says they can cut the back of the crank. It do this for about 250$ all together or sell this thing.
Its just a little 340 with a miss

Offline Topcat

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Re: 1969 340 to a hemi torque converter.
« Reply #18 on: October 29, 2014 - 08:02:19 PM »
Well can't get a converter due to the stater in the tranny so motor is coming out. I have a shop here that says they can cut the back of the crank. It do this for about 250$ all together or sell this thing.

With the motor out, have you considered getting a stroker crank?
Here's your opportunity to upgrade. 
Mike, Fremont, CA.


Offline Denison636

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Re: 1969 340 to a hemi torque converter.
« Reply #19 on: October 29, 2014 - 08:16:21 PM »
That I have but comes down to what it takes to get this set up going. With the heads I have and everything on top the stroker kit I would need is way out of the price range. And that money needs to go to the body.
Its just a little 340 with a miss

Offline jimynick

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Re: 1969 340 to a hemi torque converter.
« Reply #20 on: October 30, 2014 - 11:25:19 PM »
Jeez, that's something I never thought about! A 273?! I was using the original 64 A trans converter and it wouldn't go in the crank of the (supposedly) 318 LA, which is why I was trying to turn it down- until the lathe cut it off. 40+ yrs later the other shoe drops!! Hope you have better luck with yours!! :thumbsup:

Offline transman

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Re: 1969 340 to a hemi torque converter.
« Reply #21 on: November 03, 2014 - 11:49:39 AM »
Figure I give a update. Come to find out I got bent over when I built my 340. The crank in it is a steel 273 crank. I had I speced out to a 340 thinking it is original. So I got a zero balance 273 crank in my 340 and now can't get a converter to fit. The polite on the crank on a 273 is ruff dem of 1.545" and all other mopar small blocks are 1.810.
Hope TCI can make a unit to fit.


Any good converter builder can build you what you require.

Offline Denison636

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Re: 1969 340 to a hemi torque converter.
« Reply #22 on: November 14, 2014 - 12:37:57 AM »
I try to have one built by many companies and that's a big no. A good tranny guy can explain it. I was just filling in the fix so that some one does not end up like me.
Its just a little 340 with a miss

Offline bigblue73

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Re: 1969 340 to a hemi torque converter.
« Reply #23 on: November 14, 2014 - 09:18:51 AM »
Transmission shops (not all) will use the term HEMI to try and impress you with the word and charge you accordingly.  Your corner transmission shops typically have little knowledge on performance converters. The HEMI converter is kind of a rare bird, and a converter rebuilder will ask for you to send in the core for rebuild, as they're hard to find.

The pilot size (or snout) are all the same size on a later 727.  The converter hub has been the same size since 1962.

I agree.  They torque converter register's are the same.

Offline Denison636

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Re: 1969 340 to a hemi torque converter.
« Reply #24 on: January 08, 2015 - 04:37:59 PM »
The stator is different from a 904 to a 727. This is where I had a issue. Had a 273 steel crank and the 727 converter would not fit the back of the crank. I got the issue fixed. Had to tear the motor down to do it. But good note the motor is back together and everything fits like it should. And motor sounds great.
Its just a little 340 with a miss