98-02 Z28 had the LS1 and looked like the regular Camaro. 98-02 SS had the LS1 and had a scoop on the hood.
98-02 Trans Ams had LS1 and front bumper was molded with circle fog lights. Formulas had the same engine (could of came was the Ram Air hood), but looked like a regular Firebird. Firehawk same engine, but different hood.