Quickest 7.3L Through the ’660

It was a big week for Power Strokes, and especially the 7.3L. After cutting the frame rails off this OBS Ford and dropping its race day weight to 3,625 pounds, the nitroushuffing 7.3L put together by Gray’s Diesel Performance of Middleburg, Florida, went 5.21 at 137 mph through the eighth-mile over the weekend—making it the quickest 7.3L-powered truck (or rail) to do so to date.

The engine still makes use of the HEUI injection system and is graced with P.I.S. 400/400 injectors, a BTS dual HPOP system, an S480 turbo, and is backed by a Proformance Racing Transmissions Turbo 400.

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