1986 Chevrolet P30 Engine: 6.2L V8 DIESEL; EngineVIN: J; FuelSystem: FI; with Stanadyne Pump;. 1987 Chevrolet P30 Engine: 6.2L V8 DIESEL; EngineVIN: J; FuelSystem: FI; with Stanadyne Pump;. 1988 Chevrolet P30 Engine: 6.2L V8 DIESEL; EngineVIN: J; FuelSystem: FI; with Stanadyne Pump;.