Powermaster Conversion

Shane

Moderator
Joined
May 28, 2001
I've finally blown the Powermaster, and had enough of it. I'm preparing to do the Vacuum swap, so I went to the junk yard and bought an entire master cylinder/booster and pedal out of an 1984 GMC Callebro (The GMC El Camino). Will this fit the GN? I'm assuming that it will, being G-Body and all, but thought that I would varify before I rip the Powermaster out and have an "unstoppable" car. Thanks!
 
I put a barer kit on my car, the master cylinder bore is enormous. It came with the pedal and everything you need(except vacume block). I could sell you one if you are interested.
 
The vacuum booster tank should should be about 6" long and have a master cylinder that is aluminum with a plastic resevoir as opposed to a rather flat booster and a cast iron master cylinder. Hardest part of the install is changing the pedals.
 
Thanks, that's how this Master Cylinder looks, but I don't know if it has the same bolt pattern as the GN, does anyone know that?
 
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