I used to buy wheel blanks without centers and make my own centers out of 1/4" steel plate with angled gussets between the lug bolt holes for the dirt track race car I owned. They were HEAVY, but we could get out on the track and do a lot of wheel-rubbing without bending anything. It helped that I had a piece of steel rod welded all the way around the outer bead ring, I suppose!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!