Product SpecsMake / ModelChevy Bel Air Year(s)1955-57 EngineV8 NotesMounts On Engine Side Of Core Support MaterialAluminum Available CoresHigh Efficiency Aluminum Core Size17-1/4 x 21-1/4 Available Rows2 Cooler Size12-1/2x1/4 NPT Flow TypeDownflow Inlet Size1-1/2" Outlet Size1-3/4"