Just as I suspected you guys are full of good information. There is a chart from ALCOA (Aluminum Company of America) who makes forged aluminum trucks wheels on the thread I posted above (can't get it to copy and paste though). It seems to confirm Birdman's information shown above. As long as you keep the forged aluminum wheel below 300 degrees (for 6000 series aluminum) you should be okay. I am assuming Centerlines are 6061-T6. Whew! I was starting to sweat it there for a minute. I have to assume I can find a powder coating company that has probably dealt with forged wheels before and can cure the coating below 300 degrees. Let's face it, a truck wheel has to be able to survive some fairly warm temps even if it is not going through the powder coating process. I have never done any desert racing but between the 110 degree temps of the desert and the extreme heat coming off the rotors and calipers, a forged wheel is going to get pretty friggin' hot for long time. Not to mention almost every race car in existence right now (except NASCAR) runs on forged wheels that must get hot as hell! If they can survive that I'm sure there's a way to get them to survive the powder coating process.
One other thing I just thought of, and wonder if Silverbolt has figured out a solution. I am assuming the hub cap/cover on the Centerline wheel is made from plastic. If that is the case I would also assume it will not survive the curing process. Hmmmm...Rattle can? You know, it would be a heck of lot easier if Centerline would just make some of it's wheels with a powder coat on it!
Also, we somehow got off on the beadlock thing. As much as I like the look of the beadlocks I am not willing to accept the weight penalty whether they are genuine or simulated. I was never planning on getting beadlocks.
One more thing, I was looking at the Method Wheel website. It appears some of their wheels are forged, some cast and some spun. I think spun and forged is really about the same thing but I cannot tell for sure which of their wheels are forged and which may be cast. You can usually spot a cast wheel because the "spokes" are thicker than those on a forged wheel. I was assuming all the Methods were forged but now I don't think so. Maybe WarSurfer can clear this up?