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1967 Ford GT40 Mk.IV J8

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Description


The Ford GT40 Mk IV chassis J-8 was one of the final “J-series” cars built by Kar Kraft in 1967 as part of Ford’s ultimate evolution of the GT40 program. Unlike the earlier British-built Mk I and Mk II, the Mk IV was an all-American design constructed around a lightweight aluminum honeycomb monocoque chassis with riveted and bonded panels for exceptional rigidity and weight savings. It used Ford’s powerful 7.0-liter (427 cid) V8 engine derived from NASCAR technology, paired with a four-speed gearbox. The car featured a long, aerodynamic body developed for high-speed stability at Le Mans, capable of over 220 mph (≈ 354 km/h) down the Mulsanne Straight. Chassis J-8 was prepared by Holman & Moody for the 1967 24 Hours of Le Mans and driven by Lloyd Ruby and Denny Hulme, but retired after running off into the sand later in the race. Afterward, it was returned to Holman & Moody and preserved in unrestored condition. Only around a dozen Mk IVs were built, making J-8 extremely rare. The Mk IV represented a major engineering leap for Ford, being lighter, faster, and more refined than its predecessors. However, its racing life was short-lived due to the FIA’s 1968 rule change limiting engine displacement to 5.0 liters, effectively ending the 7.0 L GT40’s competitive career. Today, J-8 remains a historically significant example, symbolizing the peak of Ford’s Le Mans engineering program.
Source: Simeone Foundation Automotive Museum - Summarized by ChatGPT


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car might explodes at the slightest inconvenience, drive safely
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10/11/25

Spotlights

General Characteristics

  • Created On Windows
  • Wingspan 6.2ft (1.9m)
  • Length 15.1ft (4.6m)
  • Height 3.5ft (1.1m)
  • Empty Weight 2,947lbs (1,336kg)
  • Loaded Weight 3,195lbs (1,449kg)

Performance

  • Wing Loading 2,969.1lbs/ft2 (14,496.6kg/m2)
  • Wing Area 1.1ft2 (0.1m2)
  • Drag Points 306

Parts

  • Number of Parts 1162
  • Control Surfaces 0
  • Performance Cost 3,672