Flex Plate bolt question

[SwingerMan]

Does anyone know what the flex plate bolt size is for a cast 340 crank is
7/16" or 5/16"? Trying to order my flex plate/coverter for a 904 to 727 swap.
Thanks

 

[340mopar]

The stock convertor to flexplate bolts are 5/16".


Chuck

 

[SwingerMan]

Thanks Chuck!