It is the only small body alternator available with heat dissipating coating and bearings rated for extended high rpm use (severely overdriven alternator) but since you are the athoratay on this stuff, would you tell me what alternator I should buy that supports very high rpms? You must be an authority on everything in every of your comments on my post you make me look like an idiot who doesn't know what he's doing. If you have a problem with me, say so...I will make sure the problem ends right here right now! I'm willing to bet I built more high end stuff than you can ever dream up. Right now building a 495 LSX tall deck w/ modified LS7 heads and .670 lift HR custom cam, 2.25" stepped headers and so on that should make close to 800 crank HP N/A all by myself, I don't have a shop around the corner I can order stuff from.