I have a pair of American racing small bolt pattern look just like center lines believe they have centerline center caps if your interested I'll check that for you
Yes firewall needs to be massaged a bit this is what I did be sure to check wiper arms underdash as they can hit if you make the pocket to deep try to take off as much as you can just below the wiper motor bottom bolt this is where it's closest
Yes they do I also have small bolt pattern fronts but they are American racing but they look exactly like the center lines I have center line caps so there's really no telling the difference I have more pics but for some reason they won't upload if you want to send me your email I can send them...