Bill, that is exactly what I am suggesting, the sandwich plate ( the 0.060" steel plate fitted between engine block & bellhousing on all early SBF ) has the location hole for the starter in it, obtain one of these from a 65 thru whatever SBF with the 157t flywheel/flexplate, auto or manual and use it as a drilling template for the new bolt holes in the bell housing/adapter by simply sitting it on the bellhousing and located with two 1/2" bolts in the factory dowel holes. As mentioned earlier the lower starter attachment hole might exit in fresh air/maybe not, but a blob of alloy weld would be sufficient to tap into.JM
I wish it were that simple. The starter mounts to holes in the bellhousing.
Do you think I could redrill the bellhousing?