Considered an experimental car, the new 1967 Ford GT40 MK IV J-6 was simply known as the ‘J-car’, referring to Appendix J, on the regulations to which it was constructed. this car was devlepeoed as Ford was not satisfied with the 1966 GT-40 MK II win at LeMans and set out to develop a new lightweight chassis of honeycomb aluminum.
To leave nothing to chance, four completely new chassis were constructed for LeMans, 1967, Two (J-5 and J-6) were handed to Shelby American for drivers McLaren/Donohue (#2) and Gurney/Foyt (#1), and two (J-7 and J-8) were entered by Holman and Moody.
The qualification sessions were dominated by the McLaren/Donohue J-6 clinching the pole. Unfortunately, the J-6 lost time in the pit after the rear body panel blew off down the Mulsanne Straight. The Gurney/Foyt J-5 (#1) finished 1st with a trouble free race and the Ford MK IV J6 (#2), driven by Bruce McLaren and Mark Donohue finsished 4th overall at this 1967 LeMans.
The J-6 is the only Mk IV that finished LeMans that is still running and remains totally original as last raced.
The current owner James Glickenhaus has put over 40,000 road miles on the MK IV J-6 since 1990.
Design and Engineering
-
Engine: The GT40 MK IV J-6 was powered by a mid-mounted 7.0-liter (427 cubic inch) V8 engine. This engine, developed by Ford's racing division, was capable of producing around 485 to 500 horsepower, depending on tuning and race specifications. It featured a robust and reliable design, optimized for endurance racing.
-
Chassis and Suspension: The GT40 MK IV utilized a lightweight and rigid monocoque chassis, paired with advanced suspension systems. It incorporated independent suspension at all four corners, featuring coil springs and wishbones, providing exceptional handling characteristics crucial for high-speed endurance racing.
-
Bodywork: The aerodynamic bodywork of the GT40 MK IV J-6 was designed to maximize speed and stability on both straights and corners of endurance racing circuits. The body panels were made from lightweight materials such as fiberglass, contributing to the car's overall performance and efficiency.
-
Interior: The cockpit of the GT40 MK IV was designed with driver comfort and functionality in mind. It featured a minimalist dashboard with essential gauges and controls, a racing seat with safety harnesses, and optimal visibility for the driver during long-distance races.
Racing Achievements and Historical Significance
-
1967 Le Mans Victory: The GT40 MK IV J-6 achieved its greatest triumph by winning the 1967 24 Hours of Le Mans, marking a historic moment in Ford’s racing history. Driven by Dan Gurney and A.J. Foyt, car number J-6 secured Ford's second consecutive overall victory at Le Mans, solidifying its dominance in endurance racing.
-
Ford versus Ferrari Rivalry: The GT40 MK IV played a crucial role in Ford’s rivalry with Ferrari during the 1960s. It was part of Ford’s ambitious campaign to defeat Ferrari at Le Mans, culminating in multiple victories and establishing Ford as a dominant force in international motorsport.
Collectibility and Legacy
-
Rare and Coveted: Original GT40 MK IV cars are highly sought after by collectors and automotive enthusiasts worldwide. Their historical significance, racing pedigree, and limited production numbers contribute to their high collectibility and value in the classic car market.
-
Cultural Impact: The GT40 MK IV’s success at Le Mans and its role in the Ford-Ferrari rivalry have cemented its place in automotive history. It remains an enduring symbol of American racing achievement and technological innovation during the 1960s.
Continued Influence
-
Technological Advancements: The GT40 MK IV’s engineering innovations, including its powerful engine, advanced chassis design, and aerodynamic bodywork, influenced subsequent generations of racing cars and production vehicles. Its success at Le Mans showcased the capabilities of American automotive engineering on the global stage.
You may purchase a print of the 1967 Ford GT40 MK IV J-6 in our dElegance 2013 online gallery.