I was able to put an 85+ sbc (not sure the exact year) in my 65, I used the flywheel and clutch, and motor mounts off the 283 that was in it., had no other problems, except for the ##@% flat cam that was in the motor!!
stock radiator 283 ram horns, points ignition all switched right over.
camaro exhaust manifold may dump right into the clutch linkage... header might too....
belhousing starter fit fine