For you guys wanting to drill that front mount.
here's some measurements I made last year for a guy drilling out a 235 he was swapping in place of a 216.
[img]http://www.mongosgarage.com/tech/235mount.jpg[/img]
Might be the same for the GMC's maybe someone could measure it and confirm.
MONGO


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