For Sale: New Delphi aluminum heater core, part # HC0280, for 1993-2002 Camaro & Firebird models. I bought the heater core for my 1994 Z28 years ago but never installed it. The heater core is made in the U.S.A. as per the label which has the address of the manufacturer, Delphi Corp., and the year 2008. Included are 4 foam pads (2 thick and 2 thin). Shipping will be via the USPS or UPS ground whichever is the least expensive.