Sold my '57 Buick and am looking at a replacement project. It's a '61 Dodge 'Dart' pickup. 1/2 ton long box. V-8/4-speed trans. I have a couple questions about it, since I've never had one of these. First, the truck runs but the engine smokes. The seller isn't 100% on the engine displacement, but reading up on it I assume it's a polysphere V-8. Thinking about rebuild options and wondering if it'd just be simpler to replace it with an LA-series 318 or 360 for the time being and worry about the 'Poly' later on, if at all. I haven't found much for resources for these trucks online, but what I do seem to find indicates the bell housings between the Poly and the LA aren't the same. Can anyone confirm this? If they aren't, is there an adapter so I can mate the LA to the four-speed? Second, does anyone know what size wheel bolt pattern this thing has? It's a five-lug setup. Looking ahead to wheel swap options. Thanks guys! -Marc.