273 into a 62 Lancer?

I looked at a 62 Valiant with a 408 in Salt Lake City a while back. I'm still kicking myself for not buying it. He had used the same pieces mentioned above. Dropped steering linkage from a 64 Barracuda, 904 pushbutton tranny from a 64 Barracuda, Gas pedal and cable assy. from same Barracuda, radiator from same... basically a bolt in. He used Spitfire headers and they cleared OK. His biggest issue was the heater box. That was the worst issue with the whole car. It looked like he had done the job drunk and in the dark. He had basicall just pushed the thing back and stuck it in place with straps and silicone. I think it could be modified to fit cleanly. He went with stiffer front torsion bars and had done the later model front disk brake conversion. 8-3/4 with Jeep disks on the back. Dual 2-1/2 exhaust with crossmember cutout previously mentioned. It was a nice car that drove well and MOVED with the 408 in it. One of those deals I'll always regret. Do the swap and keep us appraised with photos!