choptop

I am no expert by any stretch of anyone's imagination, so please get your salt shaker ready: 'chopped' as in a lowered roof or as in making it into a convertible?

Convertibles have strengthening members under the heater channels so you'll probably at least need to add those if you're making it into a vert. Remco

It's hard to make a '74 Sedan look worse than stock, and they aren't precious yet, so go for it. It will take the parts from a minimum of two tops to make a chopped top, and most people say three tops. If you have the materials, then ask again or better - seek out a shop that has already done a few.

Chopped looks cool, but there is the disadvantage of being able to see stop lights - you might end up pressing your face to the glass to see that high. My Kelmark has the same issue.