A.C. Delete for all 78-87 Malibu, El Camino, 78-81 Lemans 78-88 Monte Carlo, Cutlass. Allows you to remove the evaporator core housing cleaning up the firewall, and maintain the heater function. Holes marked in factory location. Also allows use of FACTORY AC fan. High quality fiberglass requires very light sanding and paint. Also marked for blower fan resistor allowing use of the variable speed ac fan if desired. No need to replace the factory heater core, fan, or resistor. Any questions are welcome. Case will be in WHITE gelcoat/primer. Highest guality and the cheapest you'll find anywhere. This allows for more space for large valve covers and headers as well as big block engines. Molded in fiberglass for additional strength and stands up to heat, far better than the generic plastic covers offered. Exterior is done in white, which creates a great base for any color of paint. As you can see for yourself, there has been great effort taken in this piece, rest assured your getting the best A/C delete cover on the market! BLEMS occasionally available, for a lesser price message for details