1990 Chevrolet C5500 Kodiak Engine: 6.0L V8;. 1991 Chevrolet C5500 Kodiak Engine: 6.0L V8;. Part Type: Engine Coolant Outlet Gasket. Eng Coolant Gasket. Compatible Years: 1990 1991. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.