Doug , you didn't answer my ? so I will ask again . The 94 engine is a 4.9L inline 6 cylinder and the 97 is a 4.6L V-8 . T or F To the best of my knowledge the 94 engine used a 60 pin PCM and the 97 uses a 100 pin PCM . A V-8 PCM will not have any ability to c... Login to read more.