The new body style that was originally intended for the 1972 LeMans and GTO ended up being introduced for the 1973 model year. The GTO was a $368 option on the new LeMans Sport Coupe and Coupe models. GTO equipment included a unique hood with NACA-type hoodscoops, a blacked out grille, heavy duty suspension, chrome dual exhaust tips, and GTO identification decals and badges.
The standard engine for the 1973 GTO was a four-barrel carbureted 400 rated at 230 hp. A four barrel carbureted 455 was an optional engine that was rated at 250 hp and only available with an automatic transmission. GTOs with the 400 came standard with a Hurst shifted three speed transmission while a four speed or an automatic were options.
1973 GTO Production Numbers:
4,312 Sport Coupes
Total Production: 4,806