called my friend who bought my wheels like that just happens he has them off right now, hes cleaning them and polishing the top of the vains and going to paint the inside gunmetal metalic then clear coat them. he claims there are about 4 differnt wheels simular to those you have to count the vains. he also said the ones he got from me are american racing turbines and have the least # of vains. american racing told him they no longer make that wheel but sold alot in the 70's and 80's hope this helps
balzer
P.S. i have seen some in 8 lug too