The Chevrolet Series AC International is an American vehicle manufactured by

Chevrolet Chevrolet ( ), colloquially referred to as Chevy and formally the Chevrolet Motor Division of General Motors Company, is an American automobile division of the American manufacturer General Motors (GM). Louis Chevrolet (1878–1941) and ous ...

in 1929 to replace the 1928 Series AB National. In all, 1,328,605 Series ACs were manufactured in a range of ten body styles, with 73,918 from Oshawa. The Series AC was distinguished from the AB by the introduction of a new

six-cylinder engine The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categorize ...

, the first Chevrolet with a six-cylinder since the 1915

Chevrolet Series C Classic Six The Chevrolet Series C Classic Six is the first automobile produced by American car manufacturer Chevrolet. It is one of the few Chevrolets made while record-setting Buick race car driver Louis Chevrolet was with the company. This Brass Era Che ...

. Advertised as "A Six for the price of a Four", it was only $10 more than the outgoing four-cylinder Series AB ($ in dollars ). To simplify production operations, each factory was designated one body style for national consumption and shipped by railroad to major American cities. The serial number of origin was relocated to the right body sill underneath the rubber floormat except for the roadster and phaeton, which were inscribed on the right side of seat frame. Prices listed started at US$525 for the roadster or phaeton ($ in dollars ) to US$725 for the Landau Convertible ($ in dollars ).

Specification

1929 Chevrolet LQ Series flat bed truck (1)

The Series AC was powered by Chevrolet's new overhead valve six-cylinder engine, producing @ 2400 rpm. The engine became known as the "Stovebolt Six" because single-slot screws were used to attach covers for the

pushrod A valvetrain or valve train is a mechanical system that controls the operation of the intake and exhaust valves in an internal combustion engine. The intake valves control the flow of air/fuel mixture (or air alone for direct-injected engines) ...

and overhead valves to the engine block. The

Oakland Six The Oakland Six was the first six-cylinder engine offered by the Oakland Motor Company in 1913 which became a division of General Motors in 1909. The Oakland Six was offered in many different model names that changed every year, along with severa ...

flathead was replaced by the Oakland V8 in 1929 and the companion junior brand Pontiac was introduced in 1926 with the Series 6-27 and the split-flathead

Pontiac straight-6 engine The Pontiac straight-6 engine is a family of inline-six cylinder automobile engines produced by the Pontiac Division of General Motors Corporation in numerous versions beginning in 1926. "Split Head" Six 186 In the 1920s Oakland Motor Car engin ...

, making room for Chevrolet to offer their new Chevrolet straight-6 engine. Further up the brand hierarchy

Oldsmobile Six The Oldsmobile Six, also known as the Model 53, 54 and 55 (1913-1915) then a brief cancellation until it reappeared as the Model 37, 37A and 37B (1917-1921) was a top level sedan along with the Oldsmobile Series 40 junior vehicle produced by GM's ...

continued to be offered until 1938, having been introduced in 1917. Standard items included a banjo-style rear axle, single plate dry disc clutch, four wheel mechanical brakes with pressed steel 20" disc wheels. Options offered were front and rear bumper, to be considered standard equipment in later years, rear mounted extendable trunk rack, heater for passenger compartment, cigar lighter, and the introduction of a hood ornament. In May of 1925 the Chevrolet Export Boxing plant at

Bloomfield, New Jersey Bloomfield is a township in Essex County, New Jersey, United States. As of the 2020 United States Census, the township's population was 53,105. It surrounds the Bloomfield Green Historic District. History The initial patent for the land that w ...

was repurposed from a previous owner where

Knock-down kit A knock-down kit (also knockdown kit, knocked-down kit, or simply knockdown or KD) is a collection of parts required to assemble a product. The parts are typically manufactured in one country or region, then exported to another country or region ...

s for Chevrolet, Oakland, Oldsmobile, Buick and Cadillac passenger cars, and both Chevrolet and G. M. C. truck parts are crated and shipped by railroad to the docks at

Weehawken, New Jersey Weehawken is a Township (New Jersey), township in the North Hudson, New Jersey, northern part of Hudson County, New Jersey, Hudson County, in the U.S. state of New Jersey. It is located largely on the Hudson Palisades overlooking the North River ...

for overseas GM assembly factories.

References

Series AC International Cars introduced in 1929 1920s cars {{Vintage-auto-stub

Specification

See also

References