350, 400, 454
350, 400, 454
Yes it will bolt right up
Yes
Is there enough room, yes.
yes
ive seen caprice,s with zz572 big blocks. pretty much any motor will fit
will 24" fit my 87 caprice
Yes, it will definitely fit.
the g20 should be a 350 and I believe the caprice is a 305 you can swap the engines but you will also probably have to swap the intake and exhaust manifolds
Yes
Yes
Yes