Grabber Orange The 1970 Mustang was a facelift of the 69, the headlights were moved inside the grille and imitation vents added to the outside where the 69 headlights were, the rear fender scoops were also gone and taillights revised. It was still available in Sportsroof, Hardtop or Convertible. The Boss 429 was born of Ford's need to qualify 500 examples of its new racing engine for NASCAR. But instead of putting production units in the midsize Torinos it ran in stock-car racing, Ford offered the engines in the 69 and 70 Mustangs. It was a serious mill: four-bolt mains, a forged steel crankshaft, and big-port, staggered-valve aluminum heads with crescent-shaped combustion chambers, 735-cfm Holley with ram-air, an aluminum high-riser, and header-type exhaust manifolds. Outside, simple decals, front spoiler, Magnum 500 wheels and hood scoop (black for 70 body colour in 69).