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Just 37 examples of the Ace were built with power supplied by Ford of England's 2.6-liter (2,553 cubic centimeters) pushrod overhead-valve inline-six, as used in the Zodiacs and Zephyrs. Known as the 'Ruddspeed' option, they were adapted by Ken Rudd and used three Weber or SU carburetors and delivered upwards of 170 horsepower. These engines were more compact than the Bristol or AC sixes, and the lower engine height allowed AC's designers to redesign the body from the cowl forward with a lower bonnet line. They had a smaller grille which was later used, with minor changes, for Shelby's earliest leaf-spring Cobras.
This example is fitted with the Stage 4 Ruddspeed Ford Zephyr engine with a free-breathing Raymond Mays aluminum cylinder head and three SU HD6 carburetors. It produces 170 brake horsepower at 5,500 RPM and compliments the vehicle's lightweight construction, weighing over 400 pounds less than even the Cobra.
Additionally, this vehicle has a heater, Lucas headlights, a laminated wood-rim steering wheel, dual outside mirrors, and five silver painted wire wheels with 185 R15 Avon tires.
This vehicle has been restored and finished in red with black leather. It is number 30 of the 37 Aces built with the 2.6-liter Zephyr engine. It has a known history from new, and its most recent owner used it in the California Mille, Copperstate 1000, and Colorado Grand.By Daniel Vaughan | Dec 2021
This example is fitted with the Stage 4 Ruddspeed Ford Zephyr engine with a free-breathing Raymond Mays aluminum cylinder head and three SU HD6 carburetors. It produces 170 brake horsepower at 5,500 RPM and compliments the vehicle's lightweight construction, weighing over 400 pounds less than even the Cobra.
Additionally, this vehicle has a heater, Lucas headlights, a laminated wood-rim steering wheel, dual outside mirrors, and five silver painted wire wheels with 185 R15 Avon tires.
This vehicle has been restored and finished in red with black leather. It is number 30 of the 37 Aces built with the 2.6-liter Zephyr engine. It has a known history from new, and its most recent owner used it in the California Mille, Copperstate 1000, and Colorado Grand.By Daniel Vaughan | Dec 2021
The rarest of the three different engines in the AC Ace was the 2.6-liter Ford Zephyr introduced in 1961. This is the 30th of the 37 2.6s built and is one of only a handful in the United States. This car also has the benefit of the more powerful Ken Rudd 'Ruddspeed' Raymond Mays type cylinder head. Ken Rudd was an engine tuner and was also one of the AC works drivers at Le Mans in 1957 and 1959. Ruddspeed Ace's are highly desirable and are often referred to as a crossover car between the original AC Ace and the Shelby Cobra.
2021 RM Sothebys : Monterey
Pre-Auction Estimates :
USD $300,000-USD $375,000
Sale Price :
USD $500,000
Recent Sales of the AC Ace
(Data based on Model Year 1963 sales)
1963 AC Ace 2.6 'Ruddspeed' Chassis#: RS5030 Sold for USD$500,000 2021 RM Sothebys : Monterey | |
1963 AC Ace Bristol Chassis#: BEX.1210 Sold for USD$280,500 2010 Gooding and Company : The Amelia Island Auction |
AC Aces That Failed To Sell At Auction
1963 AC Ace's that have appeared at auction but did not sell.
Vehicle | Chassis | Event | High Bid | Est. Low | Est. High |
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