This 1pc panel fits 67-81 Camaro, 68-79 Nova, 64-72 Chevelle, 65-70 Fullsize Chevy, 67-81 Firebird, 66-70 All Pontiac, 71-72 Tempest/GTO, 71-72 Grand Prix, 71-74 Ventura, 74 GTO, 65-70 All Oldsmobile (exc Toronado), 71-72 Cutlass, 65-71 Skylark, 65-70 Fullsize Buick, Our panel is made of .080 thick 5052 aluminum. (Same thickness as a nickel). 5052 is commonly used in aircraft and marine applications. Super light weight and strength is ideal for this application. Our heater delete panel is an exact fit. Panel mounts using original hole locations. No need to drill any holes. Panel is extended to cover both heater hose holes. Panel exceeds NHRA requirements of .050 aluminum. A bead of silicon around the perimeter of the panel will seal out any fumes from the engine compartment. I recommend Permatex Ultra Black Hi Temp RTV Silicon Gasket Maker. Comes in a black squeeze tube. You can get it at most auto parts stores. Each panel has a sanded finish. Ready for paint to match you car's color or leave it natural sanded aluminum. You will not find this panel for less. We offer a 2pc style of this panel too. We have more heater delete panels for other cars available. Please visit our ebay store http://stores.ebay.com/LRE-Fab-Shop?_rdc=1 for more products and read our feedback. Thanks for looking! LRE Fab Shop.