I have a 62 Lancer with a slant 6. I'm wanting to drop in a small block. Not new to Mopars, but to Pre 66 A bodies. Will a 66 and up A body K-member fit pre's? I know of several 63 Dart GT's in yards around here, one that had a 273. I know all SB will fit the V8 K's, but will the pre-66 Dart and Lancer share the same chassis dimentions? Any help will be appreciated.