[hamllik]

I did one in my 1972 c10 4x4. I used the small block motor mounts the factory 1966 396 impalla valve covers with one of the sloped corners and a hei distributor. A short water pump and I had to hunt for a factory pan that would clear the cross member. The headmen headers for a 2 wheel drive fit except the pass side hangs too low to clear the front drive shaft. So I used factory manifolds. I cut the small block fan shroud down and it still works. With mine you can not use aftermarket valve covers. The only hacking I had to do was to trim the front cross member under the radiator a sliver abot a 1/2'' or so to clear the harmonic ballancer pulley that was it. My truck has factory air and I didnt have to mess with the heater box either. When I swapped in the 396 I also swapped to a 4 speed/np205 from a th350/np205. I hope this helps ya .