fivepoint

I am thinking about getting a different torque converter for my externally balanced 440. B&M sells a neutral balanced converter and tells me to use a B&M #10237 flex plate. It is a round plate with a cutout on the edge.
Reading the questions on the Summit website I am not sure it will work. Some say the cutout is for clearance for the converter weights. Some say the cutout is to compensate for the weights and to use a neutral balanced torque converter. I called B&M and the person I spoke with did not really answer my question. Has anybody used this flex plate? What converter did you use? Did you notice any engine vibrations?

Iowan

I’ve never used a cast crank in a 440 but I have been involved with a 360 project that used a round flex plate and a converter without counter weights, also B&M. Everything worked as it should. The best way to use flex plates like that is to have them when you balance your motor, then they will be included in the balance.
I would go with the flex plate and converter.

fivepoint

[QUOTE=Iowan; The best way to use flex plates like that is to have them when you balance your motor, then they will be included in the balance.
I would go with the flex plate and converter.[/QUOTE]
Thanks Iowan, I was just looking to change the converter and the engine is not ready for a rebuild. Next time I rebuild an external balanced engine, I will get it balanced to use a neutral balanced converter. I am curious as to why Chrysler didn't do it that why in the first place.

Iowan

Cost, bean counter’s ruel the world…

RacerHog

This Has a better explanation to answer your question.... Cheers...
http://store.440source.com/Flexplate...s/products/24/

fivepoint

Thanks Bob, I just thought if it was that easy, why Chrysler just didn't stamp out flex plates instead of welding weights on torque converters.

RacerHog

lol.... Your welcome... We Mopar guys just have to be different.. Thats All... lol.. Cheer !!!!!