Does 2000 Mustang GT have PI heads?
Does 2000 Mustang GT have PI heads? This revised motor, installed in all regular Mustang GT's from 1999-2004 was dubbed the PI engine, where PI stands for performance improved or power improved. Today, all Mustang GT V8 engines from 1999-2004 are the PI engine, whereas 1996-1998 4.6's are referred to as NPI (non performance improved) engines. What kind of engine is in a Ford Mustang GT? Later, this engine became the base V8 in the Mustang GT. Ford also has been produced a 4-valve DOHC version well known by SVT Cobra and Mach 1 applications. This 32-valve DOHC 4.6L engine...