Is the 68 340 high stall converter the same as the one they used with 383s?

[StockMan]

I picked up a low mile torque converter from a friend of mine that owned a 69 baracuda way back.  
He wrecked the car and saved a bunch of parts and this was one of them.

Its the smaller converter (10 1/2) and it looks identical to the Road Runner converter.
Are they the same?  Chrysler posted a slightly higher stall on the 383 version (2650) but that may have been due to the torque of the 383.
I plan on installing behind a stock 440 I'm building.  Will it stand up?  Prior to this I used to large converter and wasn't pleased with the stall (to low).

Thanks

[Kern Dog]

John Kunkel is a respected transmission guy that posts here sometimes. He has said in the past that there really is no specific stall speed to any converter. By that, I understand that he means that with so many variables out there, it is impossible to determine an exact stall rating. A 10 1/2" converter will stall higher in a big block, high performance engine than in a slant six, one barrel engine.

[John_Kunkel]

In '68, the 727-equipped /6, 318, 340 and 383HP all used the exact same converter; stall speed varied between 1650 and 2650 for that same converter so, yes, stall speed varies with the power input.

[StockMan]

Thanks. 
I have one in the car now is the larger one (11 1/2), and then this one which is noticably smaller.  I understand the smaller one was used on the 383 HP Road Runner (and other performance applications).  Lower performance applications I think used the larger converter.

I guess as long as the smaller one doesn't die behind the torque of the 440 I should be good.

[John_Kunkel]

The only difference between the Hemi converter and the 340/383HP is the size of the threads in the drive lugs so, yes, it will stand up to the 440 equally well.

[StockMan]

Thanks again for your help on this.

[oldkimmer]

...............The 340 and 383 hp use the same converter.........318s had the same 1 as a 383 2bbl and 440s...........kim........

[StockMan]

Thanks for your reply.  I'm going to try this converter, hopefully its not to loose for the 440.  The one I have on there now I don't like as much, very low stall.