B Bri
Could be done with any 55-59 v8 truck bellhousing or 60-67 V8 truck bellhousing or 63-68 6 cylinder truck bellhousing.
The rear of the engine would mount on the existing crossmember, just like the stock 6. Clutch and transmission would work just like stock. You would lose your floor starter, and you would have to figure out how to bolt the front of the engine down, but that has already been figured out for you.