I am not sure I like them myself that is why I am questioning this idea. The car is not a racer and only street driven. I think a 1/2 inch increase in the bolt should not be too much in terms of stress and would at the same time provide enough thread for proper lug nut engagement. I had a set of spacers when I was playing with the backspace on my Corvette. I did not like the way the nuts engaged the stud with stock length studs. There just was not enough thread to make me feel comfortable. If I did do this I certainly would not do it without longer studs.