1968 Gurney AAR Eagle

One of the stars of the recent Vintage Motor Racing exhibit with a special tribute to Dan Gurney at the Lyon Air Museum was Dan Gurney’s own 1968 Eagle race car.

The 1968 Eagle chassis designed by former Lola engineer Tony Southgate featured a lower flatter nose due to the use of outboard suspension assemblies. The car’s main tub was also lower in profile, with a laid-back windscreen and a body/engine cover which ended with a squared off tail section instead of the earlier rounded tail used in the 1966 and 1967 Eagle designs.

There were five 1968 Eagles built by All American Racers on Santa Ana California in the 33-car starting field for the 1968 Indianapolis 500-mile race,  First was the featured car owned by Gurney’s primary sponsor Oscar L “Ozzie” Olson of the Olsonite Corporation, manufacturer of molded one-piece plastic toilet seats. 

Gurney’s entry was powered by a 303-cubic inch stock-block Ford V-8 engine fitted with Gurney-Weslake Mark Four cylinder heads. For qualifying with the addition of nitromethane to the alcohol fuel the Gurney-Weslake engine could develop 525 horsepower.

1968 was the height of innovation at the Indianapolis Motor Speedway which was reflected in the variety of powerplants fitted to the other AAR Eagles that were entered. Roger McCluskey drove an Eagle owned by Atlanta sportsman Lindsey Hopkins that was powered by a 159-cubic inch 4-cylinder Offenhauser engine fitted with a turbocharger which was sponsored by G C Murphy stores. 

Bobby Unser drove a similar chassis and engine combination owned by Bob Wilke’s Leader Card Racers with sponsorship from Rislone oil treatment. IN 1968, a turbocharged Offehauser engine could develop 625 horsepower in qualifying trim.  

Gurney’s teammate on the Olsonite team for the ‘500” would be 1967 Formula One world champion Denis Hulme who became available after his original entry, the Shelby-Wallis turbine powered machine was withdrawn. Hulme drove the #42 Olsonite AAR Eagle which was powered a conventional 255-cubic inch DOHC (double overhead camshaft) Ford V-8 engine.   

The last Eagle entry in the Indianapolis 500-mile race field was owned by PSA airline heir Tom Friedkin powered by a 159-cubic inch turbocharged DOHC Ford engine driven by Jerry Grant with sponsorship from Bardahl oil treatment. 

While it could potentially produce the highest horsepower of the available engine, at high boost levels, the Schwitzer turbocharged Ford engine suffered both head gasket and fuel distribution issues which resulted in burned pistons.

In qualifying time trials, Unser led the Eagle contingent as he started third, on the outside of the front row, with McCluskey next in seventh place. Gurney himself started the 1968 ‘500’ in tenth place, while Grant started fifteenth, and Hulme in a late-developing program started in twentieth place.

After the leading STP Lotus turbines broke with nine laps left in the race, Bobby Unser lead the final nine laps and won by 53.81 seconds over Gurney. In a stunning debut, the 1968 AAR Eagles swept three of the top five finishing positions as Hulme finished in fourth place.

Two weeks later at the mid-June 1968 two-heat ‘Telegraph Trophy 200’ at the Mosport International Raceway in Bowmanville Ontario Canada, Gurney and his Eagle swept the program. 

A new 1968 Eagle powered by a 305-cubic inch Chevrolet V-8 stock-block engine built by Traco Engineering was entered for the event by Roger Penske for sports car ace Mark Donohue which finished in the top five of both heat races. This marked Penske’s first Indianapolis type racing car entry.

Gurney started from the pole position with a 110 MPH (mile per hour) average speed around the 2.5-mile road course. At the drop of the green flag, Dan led all forty laps of the first heat as Indianapolis ‘500’ winner Bobby Unser crashed his 1968 Eagle on the first lap. In the second Mosport heat with only 15 starters, Gurney again dominated from the pole position,as he led every lap and finished the 100-mile heat race in 55 minutes.  

Gurney did not race his Eagle Indy Car again for five and half months as he next appeared at the 1968 United States Auto Club (USAC) season finale at the Riverside International Raceway for the ‘Rex Mays 300.’ 

Gurney qualified the AAR Eagle now fitted with stubby front wings on the nose and a rudimentary wing that spanned across the rear exhaust pipes, qualified for the pole position with an average speed of 118-1/2 MPH around the historic 2.6-mile road course.

Gurney led the first four laps of the race, before Mario Andretti in a tight battle for the 1968 USAC national championship led the next four circuits. Gurney surged back into the lead on lap nine and never looked back as he led the remaining 108 laps and won by a lap over Bobby Unser’s 1968 Eagle which had been repaired from its Mosport damage and fitted with a DOHC Ford engine. 

The #48 Olsonite AAR Eagle raced five times during the 1968 USAC season and scored three victories and one second place result  was displayed at the Lyon Air Museum as it appeared at its final race as a tribute to Dan Gurney who passed away on January 14 2018.