1974 Australian Manufacturers' Championship

The 1974 Australian Manufacturers' Championship was an Australian motor racing competition for Group C Touring Cars. It was authorised by Confederation of Australian Motor Sport as an Australian National Title.

The championship, which was the fourth Australian Manufacturers' Championship, was won by General Motors-Holden's.

Calendar
The championship was contested over a five round series with each round being a single race staged over a minimum distance of 250 km.

Class Structure
Cars competed in four engine capacity classes.
 * Up to and including 1300 cc
 * 1301 to 2000 cc
 * 2001 to 3000 cc
 * Over 3000 cc

Points system
For all rounds except the Bathurst round, championship points were awarded on a 9-8-7-6-5-4-3-2-1 basis for the first nine positions in each class plus 4-3-2-1 for the first four positions outright. For the Bathurst round only, championship points were awarded on an 18-16-14-12-10-8-6-4-2 basis for the first nine positions in each class plus 4-3-2-1 for the first four positions outright. Only the best placed car from each manufacturer was eligible to score points.