GB galant engine swap

I own a '74 GB/GC Chrysler Valiant Galant 1.6l and am wanting to carry out an engine swap with either a 2l sigma engine or a 1.8l lancer engine or 1.6 DOHC lancer engine but am not sure if any of these will "drop straight in" with no dramas on my part so any info anyone could provide me with would be greatly appreciated ......... Cheers :smokin:

dude i have a gb galant in my garage that has a cordia turbo injected engine in it, up to a sigma gearbox, i am currently painting it, but it is a long term project , email me about it if you want more info and pictures i will be glad to help.