I'm trying to find a NON-metric filter adapter for my 231 V6 and am not having much luck. I tried searching over at turbobuick, ordered a part, and ended up with an adapter for a small block olds.... :af: Since the 231 and the small block share the same timing cover, does anyone know if a filter adapter from a 350 would work in a 84 G-body with the Buick 3.8? Or am I going to have to find an adapter from say, an earlier non-metric V6 (such as an odd-fire)? Any ideas?