1971 Ford Mustang 428 Super Cobra Jet


1971 marked the last year of the big block mustang with the 429 Super Cobra Jet. Due to ever increasing emissions control regulations and high insurance premiums, Ford began using smaller engines in their Mustang Mach 1 models. The basic strength of the Super Cobra Jet engine is in a more durable reciprocating assembly (crank, rods, pistons, wrist pins, flywheel/flexplate, and harmonic balancer) that was designed to withstand the higher RPM requirements of drag racing coupled with 780cfm Holley 4-Barrel carburetors. The total power output of the 428 Super Cobra Jet was 375 horsepower and 450 lb-ft of torque. One of the most recognizable features of the 71 Mustang was the NACA hood with dual scoops. While they served no performance increase, a Ram Air option could be ordered to make them functional.

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