The motor is from a '84 F150 i think. but its not stock internally. Lots of go fast goodies in it, for details see the web pages section, under '78 pinto efi. I don't think its any harder than a 289 or 302 swap, but the headers are kinda pricey! For a C4 or C5 tranny (164 tooth flywheel) you will need to hit the firewall with a BFH many times, with a pinto/mustangII tranny (143 i think...not sure) It will go in without the BFH. Mustang II motormounts and trans mount (302) I used a mustang II 302 rad, three row (not the best but it keeps it cool as long as you don't sit and idle for too long) large electric fan mounted in front. We just finished the tranny swap, motor had to come out (not fun trust me) My advice, try not to cut the rad support if at all possible, it makes it very hard to install the engine but there is no flex to the front end if you can leave it in. Dragstrip this saterday.....F UN! While testing today i'm sure i lifted the front wheels off the ground on launch....with my buddy in the car and on the highway with no traction compound!