I am very interested. I have a '64 signet factory 4 speed with a 318c.i. engine. I don't know the size of my flywheel, but I do know the dimensions between bolt-holes, and I know the center rear hole is slightly offset.
If you wouldn't mind measuring. The spread between the two outside rear holes is 10 3/4". The distance between the front outside holes is 15". Also, when I measure straight back from the front holes, at a right angle, the distance from front to rear outside hole is 4 3/4"(measured from plane to plane at a right angle).
It would be terrific if this one will fit.
Richard Graham