The 1984 James Hardie 1000 was the 25th running of the Bathurst 1000 touring car race. It was held on 30 September 1984 at the Mount Panorama Circuit just outside Bathurst in New South Wales, Australia and was Round 4 of the 1984 Australian Endurance Championship. This race was celebrated as 'The Last of the Big Bangers', in reference to the Group C touring cars, which were competing at Bathurst for the last time.
The race was won by Peter Brock and Larry Perkins driving a Holden VK Commodore for the Holden Dealer Team, the third consecutive victory for Brock, Perkins and the HDT. It was the most dominant team performance for the HDT in the history of the race as the team claimed a 1-2 finish with John Harvey and David Parsons backing up their team leaders by finishing second. Third place was taken by the Mazda RX-7 of Allan Moffat and Gregg Hansford. Moffat privately disputed the Harvey/Parsons Commodore finishing second as it had spent almost 3 laps in the pits mid-race with a gearbox problem, but saw little value in protesting as it would not win him the race so decided to settle for third.
The race also saw the first appearance of the international Group A cars at Bathurst (the category had made its Australian debut in the Castrol 500 at Sandown 3 weeks earlier). The Group A class was won by the TWR Mobil Rover Vitesse V8 of race rookies Jeff Allam from England and Armin Hahne from West Germany who finished 12th outright. Second in class and 15th outright was the JPS Team BMW 635 CSi of 1967 Formula One World Champion Denny Hulme and Bavarian Prince Leopold von Bayern. Third in Group A and 20th outright was the Barry Seton / Don Smith V8 Ford Mustang. For Seton, who had won the race outright in 1965, it would be his final start at Bathurst as he quietly retired from race driving at the end of 1984. Dick Johnson Racing, who started 4th on the grid with their Group C Ford XE Falcon, also entered a Mustang in the Group A category and although 1984 Australian Touring Car Champion Dick Johnson qualified the underpowered car in 48th, it was only there as insurance should there be a repeat of 1983 where he destroyed his Falcon in a famous Hardies Heroes crash and the Mustang, which Johnson had purchased from the German Zakspeed team, was officially withdrawn the day before the race.