It really depends on how much work you want to do. 58-64 Chevs are interchangeable as a direct bolt-in. With minor mods I beleive you could go all the way up to 89 before the body change. Please take this with a grain of salt and ALWAYS do your research before jumping into this! It also depends on what you're trying to accomplish. With all these aftermarket companies, you can put in any ratio, and also put on disc brakes. Have a blast! Mark

You could try contacting your local Chevrolet Dealership mechanic to see if they know the answer.