Saw an article in one of the Ford magazines at the grocery store this afternoon where they put a pinto/mustang II front end und a 64 Fairlane. Would be about the same for the 65-66 Mustang. $5.00 is cheap when you are seeking info on how to do it or can it be done verses getting the torch out and screwing up the car.
Knowledge is power, spend the 5, and with most articles they list sponsors and companys that assisted, so there would be even more info if you follwed up with some of the sources of the story to get even more info.
The guy I bought my mustang from in Coos bay Oregon was putting a mustangII front end setup in a 68CJ mustang, there is definetly some fabrication and welding involved but that is about as much as I know about the swap
It's the April issue of Mustangs & Fords. I't a fairly good article. I have done this swap & it's not too bad, need a good welder. BTW I have built 2 Pinto's with 460's with no tube chassis & have one going away tomorrow. It's not as hard as you think.
Fist you need a Pinto, a 460, & a shoehorn! Anyway, you want to use a C-4. You'll need to make your own mounts & headers. Plus trim all the sheet metal from the engine bay as needed. This sets the engine way forward so be careful. Shouldn't have to beat the firewall. Man are they fun but hard to drive, just point & shoot!