Originally posted by David Root
[B]I just buy a non pro motor. I then align the brush hoods, polish the bushings, true and shim the armature, add brushes of choice and spring tension the way I want it and it is good as any out there. I bet a lot of members of this forum do the same thing.B]
Yep.
http://www.motortuningsecrets.com/tunestockmotor.html