1960 AC Ace Bristol news, pictures, and information

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Chassis Num: BEX1072
Engine Num: 992D2

The AC: A Brief History

From its beginnings as makers of small, lightweight delivery vehicles at the turn of the 20th century, AC (the initials stand for Auto Carriers) turned to production of full-size six-cylinder cars following World War I. The engine - a 2-liter six with chain-driven single overhead camshaft, inclined valves, crossflow porting, aluminum block and crankcase, and wet cylinder sleeves - was a model of engineering sophistication for its time. Its design proves so sound that it continued with progressive refinements and horsepower boosts in AC's until 1954.

The AC Ace
Based on the Tojeiro sports car, the AC Ace Roadster debuted at the 1953 London Motor Show with 4-wheel independent suspension supplied by transverse leaf springs and powered by the trusty 2.2-liter six described above. In 1955 the Bristol built six-cylinder engine became available, and in 1956 the Ace was joined by a handsome fastback coupe called the Aceca. The Bristol-powered cars were on offer until 1961 when their engine supply ceased. By 1962 the Ace was powered by a Ford 260 V-8 at the urging of U.S. race-driver Carroll Shelby, and the Ace transmogrified into AC's and Shelby's best-known creation, the Cobra.

This Car
One of only 463 AC Bristols produced, of which 241 were earmarked for export to the US, this car was in the hands of the same U.S. owner for 40 years.

Finished in its correct shade of cream with complementing medium-brown leather seats, brown carpeting, stayfast top and tonneau cover, and left-hand-drive. A very favorable power-to-weight ratio (105 bhp/1685 lbs) - thanks to its aluminum body and tubular chassis construction - gives the Ace Bristol sparkling performance while its simple, but effective, independent suspension lends its enviable road-holding qualities. Add to the highly attractive two-seat styling reminiscent of an early Ferrari Barchetta and the result is a thoroughbred vintage sports car in the best British tradition.

Source - Gooding & Company

The Ace was debuted in 1953 at the London Motor Show and was produced beginning in 1954 and continuing through 1963. The vehicle consisted of light-weight tubular chassis with steel boxes in the front and rear which supported a transverse leaf and lower wishbone independent suspension system. The chassis was designed by John Tojeiro. Power was initially provided by a Welleter-designed engine and was mounted in the front of the vehicle but placed back far enough to take advantage of balance. The body and design of the vehicle was inspired by the 2-seater Ferrari 166MM Barchetta (little boat) made by Touring of Milan.

During the first year of production, there were fewer than 60 examples produced. These were all Aces - convertibles. The Aceca, a hard top variant was debuted in 1954.

Due to the vehicles light weight, optimal weight distribution, responsive engine and handling, and stylish appearance, it attracted much attention.

In 1956 the Bristol-engine version was introduced, replacing the Welleter-designed motor. The Bristol 1971 cc, six cylinder engine was capable of producing 125 horsepower at 5750 rpm and propelling the light-weight car to a top speed of around 180 kph. Production of the Bristol engines ceased around the end of the 1950's and AC began using a British Ford Zephyr engine. It was a heavier engine and produced less power. There were only 47 of these 2.6 liter examples produced from 1961 through 1963.

The vehicles came equipped with front disc brakes, Girling hydraulic shock absorbers, rack-and-pinion steering, and a four-speed manual transmission.

In total, there were around 735 Aces and 326 Acecas produced. The AC Ace was the basis for one of the best known sports car of all time, the Shelby Cobra.

The oldest British car manufacturer, AC has continuously produced vehicles since 1901 and the marque carries enormous prestige. The AC Aceca, a closed coupe, was unveiled in 1954 in London and only 328 prototypes were ever produced.

Production of the Aceca Coupe commenced in 1955 and Le Mans 1957 was a lucrative one for AC, with an AC Bristol finishing tenth overall. 1958 was an even better year as a special bodied AC Bristol that finished eighth and a standard car ninth. Produced from 1954 until 1963, the similar Bristol-engined Aceca-Bristol was also eventually available in the 1956 model year. Both of these models were hand-bult GT vehicles in the British tradition, both featured ash wood joining steel tubing into their construction. Following the 1953 Aston Martin DB2/4, the Aceca was only the second vehicle to incorporate the hatchback at the rear.

The differences between the Aceca and the Aceca-Briston lay in the engines. Though both were straight-6es, but the Aceca shared its 90 hp 2.0 L engine with the lighter AC Ace, and the Aceca-Bristol utilized a 125 hp 'D-Type' 2.0 L unit sourced from Bristol Cars. One was also able to purchase the Aceca-Bristol with a milder 'B-Type' Bristol engine of 105 hp. The Aceca was priced at $5,400 in the U.S. but the Bristol specification added another $1000 to the pricetag. A total of 151 Acecas were produced, while 169 Aceca-Bristols were built. Unfortunately production was halted quite unexpectedly in 1963.

Certain design specifics in the Aceca were taken from the exquisite design work by Pina Farina for the AC Company in the 1940s, these included in the front-end styling. The grille was simple, but the curves were perfectly executed along the hood and around the headlights. The Aceca had a superbly low weight due to the tubular frame, and aluminum body panels and the aluminum engine block. Other weight saving features were in the 16' spoked wheel and nearly perfect weight distribution in the fore/aft which also contributed to the exception handling on loose, dirt tracks. The Aceca exhibited its distinctive engineering with the front-wheel disc brakes, articulated rear half-axles, transverse 'de Dion' leaf rear suspension, worm-gear steering, curved windshield, electronic overdrive in 2nd, 3rd and 4th gear The bucket seats were also very well-designed and encased in leather in true 1950's vintage auto style.

Also very innovative for the time, the AC engine was considered to be ‘an engineering marvel', patterned after the powerful Bristol aircraft engine. The engine was a inline 6, aluminum block, overhead cam, double chain drive that was fueled by 3 inline SU downdraft carburetors, that each fed two cylinders. 6 straight-out header pipes were directly opposite and these allowed the combustion gases to enter the cylinder, do one rotation during combustion and exit oppositely, straight-out, without any resistance.

Enthusiasts consider the Aceca to be a great car to drive, though it rides a bit hard, due to the stiff suspension. Cornering and steering was done quite proficiently, but some complained that it tended to oversteer, but it was still ‘solid and predictable' handling. Consumers also complained about the inadequate rear mirrors, a heating system not properly suited to colder climates and inadequate soundproofing above 75 mph.

Jessica Donaldson

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