1996 Ford L8513 Engine: 8.3L L6;. 1997 Ford L8513 Engine: 7.2L L6;. 1997 Ford L8513 Engine: 8.3L L6;. HVAC Heater Core. Heater Core. IMPORTANT: To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.