LA & RB converters

[DaveW]

Hopefully you guys can help me out here. I was always a Chevy guy so, Im kind of new to Mopars.

My question....are Mopar converters the same on internally and externally balanced engines ?

Can the converter from my 360 (externally balanced) be used on a 440 ( internally balanced) ? Only asking about the converter....not the flex plate or trans.

Thanks.

 

[Aron Gleason]

No. Internal balanced converters have no weights on them, where a external balanced converter will have weights on them.

 

[DaveW]

No. Internal balanced converters have no weights on them, where a external balanced converter will have weights on them.

Thank you.

 

[RemCharger]

Thank you.

You could use them if you have to..
Either chisel the weights off, or add them, as necessary.
And a 904 LA is a no go

 

[1 Wild R/T]

As mentioned remove the weight.. Aftermarket flex plates make it possible to use neutral balance T/C's on extremal balance engines... Use a cut off wheel to cut the welds, don't cut into the convertor, cut parallel to the convertor then grind the excess welds after the weights are removed...

 

[dvw]

The external balance weights at thick like 1/4". Neutral balanced converters may have weights as well. But they'll be thin.
Doug

 

[Cranky]

I've removed the 'big' weight off of external converters before but then you don't really know if it's balanced to '0' after you do that. Guess I got lucky the times I did it but they were on street driven daily drivers that didn't seen high rpm. I sure wouldn't do that on a hi-po engine.

 

[DaveW]

Ok, so Im not quite clear.
I have a B&M B&M flexplate (10235). It has the notch out of it....does that mean it's a blanced flexplate and a neutral converter (it's a 9.5"Dynamic).

 

[RemCharger]

Ok, so Im not quite clear.
I have a B&M B&M flexplate (10235). It has the notch out of it....does that mean it's a blanced flexplate and a neutral converter (it's a 9.5"Dynamic).

View attachment 1544855

Short answer, yes. If there's nothing else going on ( mid plate, spacers, etc) it should work in the 440.
But you say it's a 360, and that appears to be a 340 flexplate . Strange, and unrelated to your initial question.