The 1992 Diehard 500 was a Winston Cup (now Nextel Cup) event that occured at Talladega Superspeedway on July 26, 1992. Ernie Irvan continued Morgan-McClure Motorsports dominance at the restrictor-place tracks by holding off pole sitter Sterling Marlin. Davey Allison (3rd) took a one-point lead over Bill Elliott (5th) in the championship battle. Stats