TYC A/C Evaporator Core. Part Type: A/C Evaporator Core. 1999 Ford E-450 Econoline Super Duty Submodel: Base Stripped Chassis - Incomplete; Engine: 6.8L V10; Position: Front;. 1999 Ford E-450 Econoline Super Duty Submodel: Base Stripped Chassis - Incomplete; Engine: 7.3L V8; Position: Front;.