Most folks aren't aware that there was only ONE black prime "flow-coat" paint system on the Chevrolet side of the plant, and every steel part that came into the Chevrolet plant raw and needed paint went through that 7-stage hot cleaning and phosphate system and got black lacquer primer. That included everything from engine accessory drive brackets to wheels, hoods, fenders, header panels, inner fenders, radiator support, center grille and hood latch support, lower valance panel, and dozens of smaller parts; larger parts were hung on dedicated hooks, smaller parts were painted in baskets.
All were what I'd call semi-flat or satin, about 30% gloss. Any underhood part that was semi-gloss or full gloss (like the heater blower case) came that way from its supplier - the plant had no facilities for higher gloss black painting of loose parts. :thumbsup:
:beers: