King Engine Bearings General Motors 231 Ci/V6 Ohv (Size STDX) Main Bearing Set

Optional to MB4018SI (Race bearings, Tri-metal pMax Black) MAIN BEARING SET For GENERAL MOTORS 231 CI, V6 OHV; pmax black (racing line) Set contains additional lower shells to fit different applications: For engines up to 1994 use lowers: M 480L1 X 1, M 480 L X 2, For engines 1994-1995 use lowers: M4018L X 1, M 480L X 2, For engines 1995- 2004 use lowers: M 480L X 1, M4018L X 2, M41 GENERAL MOTORS 231 CI, V6 OHV