To test thick chops for doneness, touch them (they should be firm) or take their temperature (145° to 150°F). For thick pork chops (1-1/4 to 1-1/2 inches), I start with direct heat and finish with indirect heat. I set up one side of the grill the same way as for medium-thick chops, with varying levels of heat.The other half of the grill has no coals. For gas grills, keep one burner off.or medium-thick pork chops (3/4 to 1 inch), I cook with direct heat. I sear both sides of the chops briefly over high heat to get a nice crust and then move them to an area of less intense heat, cover the grill, and let them cook through.