Ken C, your thinking is not correct. I have seen a very nicely done 165. That is, a '75 164 front clip (with the B30 motor and control arm suspension) mated to a 245/265 wagon rear. Volvo never made the 160 in wagon form so it made a unique model. The last year or two of the 160 series has the rear floor pan of what was to become the 240/260 so using those years doable. The 164's--'69-'75 have 4 extra inches of wheelbase to accomodate the 6. The 240/260 frame rails are 8 inches wider than the 140/160 -- it's easier to fit a V motor into a 240/260 despite the strut towers. I've only seen a couple of V8's in 140 chassis--mounted very high to allow for the exhaust manifolds/pipes. My own V8 conversion consists of a '76 265 body with '63 Oldsmobile 215 V8 and hydramatic. I'm currently converting it to a T5 gearbox and later 245 body. It may be possible to adapt just the 164 front panels to a 240/260 nose-a platform would need to be welded to the top of the inner fender panels to have something to attach the fenders to--but I doubt things would line up wheel well wise--there's the extra 4" from the cowl forward to contend with (240/260's have the same wheelbase as the 140) and the hood dips at the edges where the strut towers are. If the 164 nose in question is the early type in good shape its best use might be to restore a 164 that needs a nose--or if it's the later type build a very different 240/260 with the whole clip and the B30.