Jet engine
Although 1969 continued with many of the same basic V8 engines available on 1968 models, notably a now revised 302 cu in (4.9 L) small block engine with , the 390 cu in (6.4 L) FE with and the recently launched 428 cu in (7.0 L) Cobra Jet engine (with or without Ram-Air) with an advertised , a variety of revised options and changes were introduced to keep the Mustang fresh and competitive including a new performance V8 available in or tune known as the 351 cu in (5.8 L) Windsor (351W), which was effectively a stretched and revised to achieve the extra stroke.