Fordged 318-3 truck crank or Poly crank, need help ID

First up, Rusty Rat Rod has got the right idea and is dead balls accurate.

Dragonbat13 said
I found some factory looking eight bolt flexplates at Jegs. Those should work shouldnt they? Also, the pilot could be modified for the pilot snout of a standard torque converter, correct?

I plan on using a 2300-2800 convertor on this crank. I would think the crank could be made to fit the normal six bolt stuff and just use the eight bolt flywheel or flexplates?

Complete plans with this crank is to first run a 904 in the car, then later down the road convert it to a five speed with a keisler/tremec transmission setup.
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Ask Summit which one you'll need.
The cranks can be machined for a modern trans easy. Do not modify the crank to "make it work" , just use the correct flexplate. Use the 8 bolt stuff. Do not make the 6 bolt stuff work. The only part that gets attention is the pilot bushing for the manual trans. That may require machine work.