BRAND NEW oil pan for B Series Engines This pan fits B16A, B17, B18A, B18B, B20B, and B20Z 10AN Fitting TIG Welded For Turbo Oil Return Built and Tested by a Fabricator You are purchasing a BRAND NEW oil pan for B Series engines. This pan fits B16A, B17, B18A, B18B, B20B, and B20Z blocks. This pan has been drilled and a -10AN fitting TIG welded to it.