Mercury motors

[timeless61]

I have a bunch of questions, does anyone have a chart or reference information on like what years motors were produced? what year were promaxes, optimaxes, and so on produced, and what horsepower? and what the difference is between promax and optimax or any others. I am not looking for information on motors older than alien cowls. I am primarily looking in the 225-250 hp range with sportmasters, thanks.