2006 Chevrolet Monte Carlo Submodel: LS; Engine: 3.5L V6 FLEX; EngineCode: LZE; EngineVIN: K;. 2006 Chevrolet Monte Carlo Submodel: LS; Engine: 3.5L V6 GAS; EngineCode: LZ4; EngineVIN: N;. 2006 Chevrolet Monte Carlo Submodel: LT; Engine: 3.5L V6 FLEX; EngineCode: LZE; EngineVIN: K;.
