When the grill is hot, reduce one of the burners to medium-low to create a two-zone fire. Place the pork chops on the hot part of the grill. Cover and cook until grill marks appear on the bottom of the chops, about 3 minutes. Flip the chops over and cook until grill marks form on the other side, about 2-3 minutes longer. Transfer the chops to the cooler side of the grill. Cover and cook, flipping the chops once or twice, until the internal temperature reads 145˚F, about 4-8 minutes longer depending on the thickness of the chops.