▁ 2 5 0 ▁P ▁ch ass is ▁were ▁converted ▁to ▁ 2 7 5 ▁P ▁or ▁ 3 3 0 ▁P ▁specification ▁following ▁the ▁ 1 9 6 3 ▁racing ▁season . ▁▁ 2 7 5 ▁P ▁and ▁ 3 3 0 ▁P ▁ ▁For ▁the ▁ 1 9 6 4 ▁season , ▁Ferr ari ▁developed ▁the ▁ 2 7 5 ▁P ▁and ▁ 3 3 0 ▁P . ▁These ▁were ▁improved ▁versions ▁of ▁the ▁ 2 5 0 ▁P ▁with ▁larger ▁disp lacement ▁engines ▁and ▁slightly ▁modified ▁body work . ▁The ▁tub ular ▁space - frame ▁ch ass is ▁and ▁most ▁other ▁components ▁remained ▁the ▁same ▁as ▁in ▁the ▁ 2 5 0 ▁P . ▁The ▁ 2 7 5 ▁P ▁used ▁a ▁b ored - out ▁ 3 . 3 L ▁version ▁of ▁the ▁ 2 5 0 ▁Test a ▁Ross a - type ▁engine ▁originally ▁util ized ▁by ▁the ▁ 2 5 0 ▁P . ▁The ▁ 3 3 0 ▁P ▁used ▁a ▁different ▁design , ▁a ▁ 4 . 0 L ▁Col om bo - des igned ▁V 1 2 ▁based ▁on ▁engines ▁used ▁in ▁the ▁ 4 0 0 ▁Super amer ica ▁road ▁cars . ▁The ▁ 3 3 0 ▁P ▁developed ▁more ▁power ▁than ▁the ▁ 2 7 5 ▁P ▁( 3 7 0   b hp ▁vs ▁ 3 2 0   b hp ) ▁but ▁we ighed ▁more ▁( 7 8 5   kg ▁vs ▁ 7 5 5   kg ). ▁Some ▁drivers