1966 Valiant/Barracuda 360,What oil pan

I never knew this pan difference, I must have had the correct pan the whole time because I never had a fitment issue and both were chrome pans. Perhaps the chromes use the 392 pattern for more interchange? I always used the thick biscuit "brick" mounts, the 66 and maybe the 65 Dart "Ice cream sandwich" looking insulators were about 2 inch thinner. Something to look into for extra clearance.