It was only the 1957 base 2-bbl 8-cyl engine with a man. transmisiion, which was 265 cubic inches, that was painted the strange chartreuse color. All the other '57 V8s were 283s, including the base 2-bbl engine with an automatic. All the '57 283s were the traditional orange color. The chartreuse engine was changed to orange during the mid-year model run.