From personal past experience.......the 429 will NOT fit in the stang engine compartment unless you sub-frame it,and then cut out most part of inner fenders, shock towers etc.( I already tried this w a stang and a 63 falcon years ago)
But still.......I would NOT let them go to a scrap-yard if I was you.
I'm an ol nuckle-bustin ford fanatic from waaaaaaaaay back and would almost kill to have couple cars like that, both were kool cars and the value on them(even in pieces these days) is still remarkably high.
Just for the bare shell on that mustang you are looking at a minimum of $500 to a collector
If it was me, I would just strip them both down completely and put it all on ebay, kick back, rake in the dough and take sometime off from work......trust me, you got some bucks there dude!
