▁ 1 9 6 4 ▁model ▁year , ▁the ▁Aer ob us ▁used ▁Ch rys ler ▁V 8 s , ▁but ▁when ▁Check er ▁Mot ors ▁shift ed ▁from ▁Cont inental ▁to ▁Che v ro let ▁engines ▁for ▁ 1 9 6 5 , ▁the ▁Aer ob us ▁line ▁followed ▁suit . ▁ ▁The ▁early ▁cars ▁used ▁Ch rys ler ' s ▁A 3 1 8 ▁V 8 ▁( 5 . 2   L ), ▁originally ▁with ▁ 1 9 0   hp ▁and ▁later ▁ 2 0 0   hp . ▁During ▁ 1 9 6 5 , ▁the ▁Aer ob us ▁switched ▁to ▁Che v ro let ' s ▁ ▁small - block ▁engine , ▁with ▁ ▁at ▁ 4 , 4 0 0   r pm . ▁This ▁was ▁in ▁a ▁less er ▁state ▁of ▁t une ▁than ▁the ▁ 2 5 0   hp ▁unit ▁used ▁in ▁the ▁regular ▁Mar ath ons , ▁with ▁lower ▁ 8 : 1 ▁compression ▁and ▁tw in ▁rather ▁than ▁quad ru ple ▁car b ure t ors . ▁Top ▁speed ▁was ▁around ▁. ▁Standard ▁equipment ▁for ▁ 1 9 6 6 ▁included ▁power ▁bra kes , ▁wind sh ield ▁was her , ▁and ▁a ▁front ▁stabil izer ▁bar . ▁▁ ▁The ▁rear ▁wheel ▁cut outs ▁were ▁radius ed , ▁unlike ▁the ▁sed ans . ▁▁ ▁For ▁ 1 9 6 9 , ▁the ▁bigger ▁ 3 5 0 ▁engine ▁( 5 . 7   L ) ▁took ▁over , ▁with ▁ 2 0