SFI flex plate Question

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Walker434

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my new combo will be an internally balanced 360 based 410 stroker built for boost. I'll be running a Cope built 904.

Can someone recommend an SFI flex plate for internal balance, 6 bolt crank, and 904?

I've looked at B&M 10230 but it is for 727 converter. The 10231 says it will work for either 727 or 904 but it's for an 8 bolt crank.

What have you guys used with this combo?
 
I also have one of those TCI Flex Plates. Nice piec. I also have one from PRW that is drilled for both 5/16 and 7/16 bolt holes. It seems like a nice piece also. substantially heavier than the TCI plate though.
The only thing I am not certain of, is if these interchange between the 904 and 727. -Mine's a 727

PRW 1844010: Xtreme Duty SFI-Rated Steel Flexplate Small Block Mopar | JEGS

PRW_Flexplate.jpg
 
Just received my new converter from PTC and it looks great. Both of my flex plates bolt right up, easily and perfectly. They got it done quite quickly, considering they said it might take 2-3 weeks due to the deaths of some family members, at least one of which worked at the shop. Sorry for the loss.
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Great service!

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