For 1993 King Racing would expand to a full-time team with Guerrero driving the No. 40 Budweiser King Lola T9300-Ilmor-Chevrolet Indy V8. Jim Crawford would drive No. 80 and Al Unser Sr. in No. 60. At the Indianapolis 500, Guerrero was involved in a crash with Jeff Andretti. Unser led early on but dropped to 13th. Crawford would spin out early on and would not recover. Guerrero would get a best finish of 4th at the New England 200 at New Hampshire Motor Speedway but was replaced by Eddie Cheever for the last few races of the season. Guerrero would finish 14th in points.