The 1998 Pep Boys 400K was Round 6 of the 1998 Pep Boys Indy Racing League. The event was held at Dover International Speedway in Dover, Delaware, United States on 19 July 1998. Tony Stewart started on pole position and Scott Sharp was the race winner.
PEP BOYS 400K Race Result
| Pos. | No. | Driver | Chassis | Engine | Tire | Started | Laps | Total Time | Laps Led | Status | Points | Avg. Speed | Pit Stops |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 8 | Scott Sharp | Dallara | Oldsmobile | Goodyear | 4 | 248 | - | 145 | Running | 52 | 99.318 | - |
| 2 | 91 | Buddy Lazier | Dallara | Oldsmobile | Goodyear | 14 | 248 | - | 7 | Running | 40 | - | - |
| 3 | 16 | Marco Greco | G-Force | Oldsmobile | Firestone | 21 | 246 | - | 0 | Running | 35 | - | - |
| 4 | 6 | Davey Hamilton | G-Force | Oldsmobile | Goodyear | 2 | 246 | - | 4 | Running | 34 | - | - |
| 5 | 77 | Stephan Gregoire | G-Force | Oldsmobile | Goodyear | 11 | 244 | - | 0 | Running | 30 | - | - |
| 6 | 4 | Scott Goodyear | G-Force | Oldsmobile | Goodyear | 6 | 242 | - | 0 | Running | 28 | - | - |
| 7 | 23 | Jim Guthrie | G-Force | Oldsmobile | Firestone | 20 | 229 | - | 0 | Running | 26 | - | - |
| 8 | 1 | Tony Stewart | G-Force | Oldsmobile | Firestone | 1 | 220 | - | 85 | Running | 27 | - | - |
| 9 | 5 | Arie Luyendyk | G-Force | Oldsmobile | Firestone | 10 | 203 | - | 0 | Accident | 22 | - | - |
| 10 | 14 | Kenny Brack | Dallara | Oldsmobile | Goodyear | 12 | 197 | - | 0 | Running | 20 | - | - |
| 11 | 52 | Robby Unser | G-Force | Oldsmobile | Goodyear | 16 | 183 | - | 0 | Accident | 19 | - | - |
| 12 | 81 | Brian Tyler | Dallara | Oldsmobile | Firestone | 19 | 162 | - | 0 | Running | 18 | - | - |
| 13 | 18 | Steve Knapp | G-Force | Oldsmobile | Goodyear | 5 | 146 | - | 0 | Accident | 17 | - | - |
| 14 | 30 | Raul Boesel | G-Force | Oldsmobile | Goodyear | 9 | 123 | - | 7 | Engine | 16 | - | - |
| 15 | 11 | Greg Ray | Dallara | Oldsmobile | Goodyear | 7 | 104 | - | 0 | Accident | 15 | - | - |
| 16 | 51 | Eddie Cheever Jr. | Dallara | Oldsmobile | Goodyear | 17 | 104 | - | 0 | Accident | 14 | - | - |
| 17 | 99 | Sam Schmidt | Dallara | Oldsmobile | Firestone | 18 | 85 | - | 0 | Accident | 13 | - | - |
| 18 | 28 | Mark Dismore | Dallara | Oldsmobile | Goodyear | 3 | 43 | - | 0 | Engine | 13 | - | - |
| 19 | 35 | Jeff Ward | G-Force | Oldsmobile | Goodyear | 8 | 21 | - | 0 | Accident | 11 | - | - |
| 20 | 40 | Jack Miller | Dallara | Infiniti | Firestone | 15 | 20 | - | 0 | Accident | 10 | - | - |
| 21 | 10 | John Paul Jr. | G-Force | Oldsmobile | Firestone | 13 | 6 | - | 0 | Engine | 9 | - | - |
| 22 | 15 | Scott Harrington | Riley & Scott | Oldsmobile | Goodyear | 22 | 0 | - | 0 | Handling | 8 | - | - |