A few general questions about a 77'

[C10N.UT]

Hi all

I was able to acquire my friends 77 gmc he bought last year for parts.It is a 77 lwb 2wd with a 454,tilt cruise,pw/pl etc etc

I am looking into swapping as many of the "goodies" from it onto my 86'.

I am allready aware i can not use the tilt column,and was led to believe the pw/pl doors assemblies would fit with no hassles.

I was wondering if the pw/pl with the doors would actullay fit with no problems and what i might actually need to do to get them to operate properly.

I was also wondering what kinda' compression a 77' 454 would have.I was told by a local gm paarts counterman around 8:1?

I also have to figure out the drivehaft length of said setup.i was hoping that somebody would have a similiar setup/situation that had a demension that i could get the driveshaft cut to fit my 86.


any and all help would be Greatly appreciated!!!

Thanks