the Dorman studs are fine, and that's the part # i got when i looked up an 87 Regal on www.dormanproducts.com
they also make one that's about a half inch longer that i used in my Camaro, but i can't remember the part number. i used them because i put LS1 Camaro brakes on the front and needed the longer studs to get enough thread engagement on the nuts once the rotor was in place. also, it looks like a race car when you take a wheel off..
edit: ok, so i dug thru some pics and found the info on the longer studs: Dorman 310-323.