Skippy: Glad you enjoyed it, I've got a lot of other stuff I need to post but haven't got around to it.
On the diagram for the motor mount, the dimension your looking at is for both holes so it's an inch .5 + .5 = 1 the holes are round and .5 in diameter.
MONGO


Mongo's Garage
Vintage GM Truck's & Parts
https://mongosgarage.com