Chevrolet AC International

The Chevrolet Series AC International is an American vehicle manufactured by Chevrolet in 1929 to replace the 1928 Series AB National. In all, 847,053 Series ACs were manufactured in a range of ten body styles. The Series AC was the first six-cylinder engine from Chevrolet since 1915, and was advertised as "A Six in the price range of the Four", and was only $10 more than the outgoing four-cylinder Series AB.[1]

Specification
The Series AC was powered by Chevrolet's new 194 cu in (3,180 cc) six-cylinder engine, producing 46 hp (34 kW) @ 2400 rpm. The engine became known as the "Stovebolt Six".