IROC VIII was the eighth year of IROC competition, which took place in 1984. It saw the use of the Chevrolet Camaro in all races, and was the first incarnation of the IROC format in which twelve drivers from different series compete in all four races. Races one and four took place at Michigan International Speedway, while race two took place at Burke Lakefront Airport, and race three ran on the Talladega Superspeedway. Cale Yarborough won one race en route to the championship and $150,000.
This season was the first of three straight that television coverage was on CBS.
The roster of drivers and final points standings were as follows: IROC season statistics at racing-reference.info , Retrieved March 8, 2007
| NASCAR Winston Cup Series 1983 Daytona 500 winner 3 Time Winston Cup Champion |
| NASCAR Winston Cup Series 6th in 1983 Winston Cup Points 1981 Southern 500 winner 2 Time World 600 Winner |
| NASCAR Winston Cup Series 2nd in 1983 Winston Cup Points |
| NASCAR Winston Cup Series Former IROC Race Winner |
| Champ Car Former IROC Race Winner |
| World Endurance Championship 2nd in 1983 World Endurance points |
| Champ Car |
| Champ Car 3 Time Indianapolis 500 winner 1980 IndyCar Champion |
| NASCAR Winston Cup Series 8th in 1983 Winston Cup Points |
| Champ Car 4th in 1983 IndyCar points |
| Champ Car 2 Time FIA Formula One World Champion |
| World Endurance Championship 1983 World Endurance Group C Champion |
| 23 (5) |
| 17 |
| 16 (3) |
| 12 |
| 15 (2) |
| 9 |
| 8 |
| 7 |
| 6 |
| 5 |
| 4 |
| 3 |
Average speed:
Cautions: n/a
Margin of victory: 3 cl
Lead changes: 9
| 24 (3) |
| 17 |
| 14 |
| 12 |
| 10 |
| 9 |
| 8 |
| 7 |
| 6 |
| 5 |
| 9 (5) |
| 3 |
Average speed:
Cautions: n/a
Margin of victory: 8 sec
Lead changes: 2
| 24 (3) |
| 17 |
| 14 |
| 14 (2) |
| 15 (5) |
| 9 |
| 8 |
| 9 (2) |
| 6 |
| 5 |
| 4 |
| 3 |
Average speed:
Cautions: 1 (Lap 1, Neil Bonnett & Derek Bell accident)
Margin of victory: 8 inches
Lead changes: 4
| 24 (3) |
| 22 (5) |
| 14 |
| 12 |
| 10 |
| 9 |
| 8 |
| 7 |
| 6 |
| 5 |
| 4 |
| 3 |
Average speed:
Cautions: n/a
Margin of victory: 3 feet
Lead changes: 2
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