250 with intergral head vs regular 250

[Basicfish]

I have a intergral head 250 6 from a 1977 camaro. I want to put it in my 1969 GMC short step that has a regular 250-6 The GMC engine is bad -cracked cylinder wall. but the head is good. The camaro engine runs good. so I am asking well the camaro 250 fit in the truck. And if I took the head off the camaro engine will the GMC head fit? any help would be wonderfull. I want to keep the truck a 6 and add a T5 to it.