The Lotus 34 is an open-wheel race car built by Team Lotus for the 1964 Indianapolis 500. Driven by Jim Clark, who qualified on pole, and Dan Gurney, tyre failure led to Clark retiring and Gurney being withdrawn.
The Lotus 34 was a very similar car to the 29. It differed principally in featuring a four-cam 4195 cc (255ci) DOHC Ford V8 with Hilborn fuel injection, producing 425bhp, through a ZF 2DS20 gearbox.
At Indianapolis, Jim Clark qualified on pole, with Dan Gurney qualifying sixth.[1] The Dunlop tyres failed during the race, leading to Clark crashing and Dan Gurney being withdrawn, much to Ford's displeasure.[2] Later that year Parnelli Jones won twice in a Lotus 43 at Milwaukee and Trenton.
In 1965 A.J. Foyt won three USAC races in a Lotus 34 on his way to second in that years championship, while Parnelli Jones finished second at Indianapolis behind Jim Clark's Lotus 38.[3]