Yes they're. 5x120. I dipped the centers black last fall. The fronts are 17x8 with 5.25" BS with a 245 tire, and the backs are 18x8.5" with 5.5" bs and a 275 tire. They cleared fined with stock Nova discs, and they clear the c5 brakes with the ridetech spindles, and prob the stock spindle as well. However, when I ordered the wheels they were fit to the stock disc brakes, well the c5 kit moves the brakes inboard 7/16" (which cpp never mentions) because they are based on a drum spindle. Here's a couple full car shots.