This is an stainless steel oil pan stud kit - originally sold to fit 1984-89 Nissan 300ZX & Turbo with the VG30E and VG30T engines. However, since the single cam VG was used in nearly a dozen different vehicles throughout its 20 year run - these studs can & likely will fit any other VG30E, VG30T, VG33E, VG33ET, and VG33ER engine variants. These were originally sold by PastPower Innovations which has since closed.