Hello! Interesting question..

If you have a rack mountable head, then yes, a rack is great. I have my head, a power conditioner and a wireless in mine. I store my cables in the back and even my stand sometimes.

 

I think his question is if you can make a head rack mountable.

 

You could use a rack shelf and attach it to the shelf.

 

First off, welcome to TB. Right place, but such a generic post title gets passed right over sometimes by the people you'd most like to read your thread. The worst offender might be "Quick Question." I think you can still edit your title, not positive on that though.

OK, many old amp heads are ~22-25" wide, and a standard 19" format rack only gives room for 17-18" internal at best. Heavy duty rack cases are really expensive, and in many cases will need additional machining for ventilation, especially if it's a tube amp. So my quick questions are:

What amp, specifically?

How strong are your electronics and electromechanical chops, and how well equipped is your workshop?

 

Oops! Don't mind me

 

Oh, come on. Build your own bass amp. I dare you!