The 1929 Chevrolet International AC Coupe was the first six-cylinder engine introduced by the company since 1915. The new six made international headlines, while Chevrolet hailed it as "A Six for the Price of a Four."
The "Stovebolt," so named because of the engine's slotted head bolts, cost only a little more to produce than any of the previous four, but offered 11 more horsepower than the 1928's four. The base price of the most popular model, the two-door Coach, increased to $595, a mere $10 over its price in 1928.
The six was simple and durable. It displaced 194 cubic inches and produced 46 bhp at 2,600 rpm. The "Cast-Iron Wonder," as it eventually became known, employed a solid overhead-valve design in a cast-iron block, inexpensive cast-iron pistons maintained by a non-pressurized lubrication system, and a Carter single-barrel carburetor. Power was transferred via a three-speed manual transmission. Fuel mileage averaged 19 mpg.
The success of the Chevy Six was such that Henry Ford initiated the hasty development of the 1932 Ford V-8 to compete with it. The original Stovebolt would last through 1936, but a continually improved six would remain as Chevrolet's only power-plant for three decades. In that time Chevrolet would become the major player in the low-price field.
Chevrolet general manager Bill Knudsen and General Motors design director Harley Earl redesigned the Chevy to give the 1929 International Series AC a lower, more modern look. Tire size was reduced from 30 inches to 20 inches. Styling changes also included a more rectangular radiator, fewer louvers on the hood sides, new one-piece crowned fenders, new bullet-shaped headlamps, and a wider single bodyside molding. The restyle rode on a 107-inch chassis, introduced a year earlier on National Series ABs. This chassis was suspiciously long for the small four-cylinder powerplant used in 1928, foreshadowing the introduction of the six.
The two-passenger Coupe received a new steel rear quarter sans ornamental landau irons. The Sport Coupe model was introduced at midyear; it replaced the Coupe's trunk with a rumble seat.
The featured 1929 Model AC Sport Coupe is owned by Lew Dark of Portage, Michigan. Its original base price was $645. But it sports the most popular option, bumpers; some rare options, wire wheels and a single sidemount spare; as well as running-board step plates, a radiator-cap hood mascot, and a spotlight. Dark purchased his Chevy in 1963 as a "basket case." He restored it himself and put it back on the road in 1971. He has shown and driven the Chevy throughout the United States.For more information on cars, see: