Ford Mustang By Reta10 Apr 17, 1964 First Ford Mustang unvield 280hp V8 Jun 1, 1965 First Gt350 Shelby comes out 306 hp Jul 6, 1972 High performance engines introduced 351HO and 351 Cobra Jet was introduced. This redeveloped the Mustang to make it a Big-Block engine. 275 hp Oct 7, 1978 King Cobra was released 4-speed or standard transmission Oct 9, 1994 New model New layout of the the Mustang. 5-speed transmission 240 hp
