New SFI magnum Flex plate coming soon.

5.9l magnum with 904 is my setup. still a cast crank(external balance). was hoping to find correct flex plate for this but I think ill go neutral plate and have weight added to converter. I have reached out to flying brian and no response yet. keep in mind that 360la plate/converter has off set lugs. 5.9l magnum flexplate and converter(stock) are not off set, from what ive been able to find

building 408, which will be internal balance, but wont be finished until late summer.
sfi is added insurance for sure!
I also run trans blanket just in case.

thanks! motorcity magnum