Driver Ralph Hepburn at Indianapolis in 1938 with one of the early model Gulf-Miller sixes with the exposed side-mounted gasoline tanks. Photo: Indianapolis Motor Speedway

Harry Arminius Miller (1875–1943) was the greatest individual designer and builder of racing cars and engines of the 20th century, a statement I write advisedly, fully aware of the many brilliant individuals who have contributed to the sport of speed over the previous 100 years.

Harry Miller began his career as a riding mechanic with Buick’s Vanderbilt Cup team in 1906. He died in Detroit during World War II, after working on an engine for an ill-fated fighter plane being peddled to the Air Corps by Preston Tucker. In between, he built the fastest, most sophisticated and clearly the most beautiful racing cars ever to turn a wheel. One car that he built in 1928 held the one-lap record at Indianapolis for an amazing nine years. His 8-cylinder engines won at Indianapolis nine times between 1922 and 1933 and in 1930 he designed a 4-cylinder twin-cam engine that—only moderately updated and renamed “Offenhauser”—won at Indianapolis 32 times until racing politics did it in after its 1976 victory.

Members only$29 / year

Keep going. This is where it gets good.

Sports Car Digest Membership is for people who'd rather spend an hour with one chassis number than skim ten headlines. The rest of this story — and every other one like it — is a few seconds away.

  • 5,000+ members-only stories

    Concours, auctions, race history, driven classics and the full archive.

  • No ads. None.

    The whole site reads like a magazine, on every device.

  • The market, every week

    Auction results and classic-car values from the people who were there.

  • 30% off the shop

    Every Sports Car Digest shirt and piece of merch, all year.

Join Sports Car Digest — Keep Reading

$29 a year. Cancel anytime, no hoops.
Already a member? Sign in

BY CAR PEOPLE, NOT A NAMELESS MEDIA COMPANY. Your membership keeps a small independent team of historians, photojournalists and racing drivers doing this.

Join — Keep Reading $29/yr