▁been ▁after market ▁installed . ▁ ▁Pa xt on ▁products ▁are ▁possibly ▁best ▁known ▁for ▁their ▁frequent ▁use ▁in ▁performance - mod ified ▁Ford ▁Must angs . ▁ ▁In vent or ▁Robert ▁Pa xt on ▁McC ul lo ch ▁began ▁producing ▁super charg ers ▁to ▁his ▁design ▁in ▁ 1 9 3 7 ▁for ▁the ▁Ford ▁Fl at head ▁V 8 , ▁a ▁popular ▁engine ▁for ▁performance ▁modification ▁at ▁the ▁time . ▁ ▁The ▁company ▁estimates ▁that ▁around ▁ 5 , 0 0 0 ▁were ▁built ▁before ▁World ▁War ▁II ▁stopped ▁production . ▁ ▁Post war , ▁McC ul lo ch ▁developed ▁a ▁more ▁s oph istic ated ▁super char ger ▁and ▁began ▁s elling ▁it ▁in ▁ 1 9 5 3 . ▁ ▁This ▁was ▁factory ▁fitted ▁to ▁a ▁number ▁of ▁vehicles ▁at ▁the ▁time , ▁including ▁the ▁Kaiser ▁Manh attan , ▁Pack ard ▁Pan ther , ▁St ude b aker ▁Golden ▁Haw k , ▁▁ 1 9 5 7 ▁Pack ard ▁C li pper ▁and ▁ 1 9 5 8 ▁Pack ard ▁Haw k . ▁ ▁In ▁ 1 9 5 6 , ▁McC ul lo ch ▁set ▁up ▁a ▁separate ▁Pa xt on ▁Super charg ers ▁division , ▁s elling ▁it ▁off ▁in ▁ 1 9 5 8 . ▁ ▁Super charg ed ▁engines ▁were ▁used ▁for ▁one ▁successful ▁year ▁in ▁NAS C AR ▁racing , ▁after ▁which ▁forced ▁induction ▁was ▁b anned ▁from ▁the ▁sport . ▁ ▁For ▁this ▁purpose , ▁Pa xt on ▁super charg ers ▁were ▁fitted