Chrysler 426 Hemi Vs. Chevrolet 454 Vs. Ford 429 Boss

Chrysler 426 Hemi Vs. Chevrolet 454 Vs. Ford 429 Boss

Like many different automotive improvements, the Chrysler 426 Hemi owes its existence to car racing's want for extra. The automaker's NASCAR crew felt it had reached the efficiency limits of the 426 Wedge engine by the top of the 1963 racing season. Within the seek for extra horsepower and velocity, Mopar engineers utilized Chrysler's hemispherical cylinder head expertise developed within the Fifties to the Wedge's 426 cubic-inch big-block, making a 426 Hemi with large potential.

Chrysler Racing launched the 426 Hemi on February 23, 1964 on the Daytona 500 NASCAR race. On the finish of the 500-mile race, 4 426 Hemi-powered Chryslers completed within the prime 5, together with a Plymouth Belvedere pushed by Richard Petty, which led 184 of the 200 laps across the 2.5-mile Daytona oval and secured victory. Along with the NASCAR championship, the 426 Hemi was additionally profitable within the prime lessons of NHRA drag racing.

Chrysler started producing 426 Hemi-equipped Plymouth Belvedere and Dodge Coronet fashions for the 1965 mannequin 12 months to adjust to NASCAR guidelines. From 1966 to 1971, the 426 Hemi automobiles powered autos such because the Barracuda (or “Cuda”), Charger and Street Runner, to call just a few.

The 426 Hemi used a 4.25-inch bore and three.75-inch stroke to realize its displacement. The key of its 425 hp output lies within the dome form of the cylinder head's combustion chamber. The dome form is sweet for burning gasoline and dissipating warmth, and the design permits for big consumption and exhaust valves to maneuver giant quantities of air via the engine.

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