Tried something last night.
I slid a small block chev bellhousing onto the dowels on the vortec 4200/6,
the dowels line up between the two engines and I dialed in the crank flange at .006" to the trans hole.
So the thing is just making up a plate of sorts for the two different bolt patterns as no 2 bolts line up, making up longer dowels as well for the extra plate thickness.
hope this helps someone out.
LHP
