2 , 9 9 3   cc ▁ ▁and ▁ 5 2 0 – 5 3 0   b hp ▁at ▁ 1 1 , 0 0 0   r pm , ▁ ▁tor que ▁at ▁ 8 , 5 0 0   r pm . ▁ ▁Background ▁In ▁ 1 9 6 5 , ▁the ▁F édération ▁Intern ationale ▁de ▁l ' Autom obile , ▁that ▁admin ister ed ▁Formula ▁One ▁racing , ▁agreed ▁to ▁raise ▁the ▁series ' ▁maximum ▁engine ▁capacity ▁from ▁ ▁to ▁ ▁from ▁ 1 9 6 6 . ▁Up ▁until ▁that ▁point , ▁Col in ▁Chap man ' s ▁successful ▁Team ▁Lot us ▁cars ▁had ▁re lied ▁on ▁power ▁from ▁fast ▁rev ving ▁Cov entry ▁Cl im ax ▁engines , ▁but ▁with ▁the ▁change ▁in ▁reg ulations ▁Cov entry ▁Cl im ax ▁decided ▁for ▁business ▁reasons ▁not ▁to ▁develop ▁a ▁large ▁capacity ▁engine . ▁ ▁Chap man ▁approached ▁Keith ▁D uck worth , ▁previously ▁a ▁g ear box ▁engineer ▁at ▁Lot us ▁but ▁now ▁running ▁his ▁fled g ling ▁Cos worth ▁company ▁with ▁Mike ▁Cost in , ▁who ▁commented ▁that ▁he ▁could ▁produce ▁a ▁compet itive ▁three - lit re ▁engine , ▁given ▁a ▁development ▁budget ▁of ▁£ 1 0 0 , 0 0 0 . ▁ ▁Chap man ▁approached ▁the ▁Ford ▁Motor ▁Company ▁and ▁David ▁Brown ▁of ▁A ston ▁Martin ▁for ▁fund ing , ▁each ▁without ▁initial ▁success . ▁Chap man ▁then ▁approached ▁Ford ▁of ▁Britain ' s ▁public ▁relations ▁chief , ▁former ▁journalist ▁Walter ▁Hay