I have a ford 302 in my 46 chevy truck that we pulled from a 69 mercury montego donor car. It can be done and you should contact these guys:
http://www.chassisengineeringinc.com/ I got the motor mounts for that swap from them. I also got the transmission mount for the c4 and the mount kit for the pacer IFS we put in.
They have what you need. You may need to box the frame where you are putting the kits or they may be able to make them without having to...
