Can you put Firebird front fenders nosepiece and hood on a 3rd gen Camaro?

No, you cannot directly put Firebird front fenders, nosepiece, and hood onto a 3rd generation Camaro. The body structures are completely different. They share some styling cues from the same era, but the underlying chassis and body panels are not compatible. Even with extensive modifications, it would be a prohibitively difficult and costly project.