dont worry about finding a 454SS there the same motor taht came in all the 3/4 and 1 ton trucks. just look for the a truck with either a T-400 or a manual trans.. they had the same ECM . which would be reral close to pug and play with your 350 harness.... or you could swap in one with a 4l80 but youll need the harness with that one as well
