Chrysler 426 Hemi Vs. Ford 427 SOHC: The Greatest Variations Defined

Chrysler 426 Hemi Vs. Ford 427 SOHC: The Greatest Variations Defined

Chrysler’s 426 Hemi is the results of years of analysis and growth that culminated in 1964 in response to Ford’s dominance of the NASCAR circuit the 12 months earlier than. Chrysler, together with Dodge and DeSoto, had developed Hemi expertise a decade earlier than the 426 Hemi was launched. Nevertheless, the hemispherical cylinder heads with combustion chamber proved too advanced and costly to fabricate, so Chrysler deserted them in favor of the 420 horsepower 413 cubic inch big-block Max Wedge engine.

The failures within the 1963 NASCAR season marked the tip of Chrysler’s 413 Max Wedge engine’s racing life and despatched the corporate again to the laboratory. Initially, engineers bored out the 413 RB’s cylinders from 4.1875 inches to 4.25 inches to create a 426 cubic inch model of the Max Wedge, however this enhance solely yielded 5 horsepower. Subsequent, they changed the wedge cylinder heads with a brand new evolution of the Hemi cylinder heads, and the 426 Hemi was born.

The magic of the 426 Hemi engine lies in its dome-shaped combustion chamber, spark plug placement and free-flowing design. Putting the Hemi spark plug close to the highest middle of the combustion chamber permits for constant ignition of the compressed fuel-air combination. As well as, the Hemi head’s giant consumption and exhaust valves and corresponding ports allowed for ample gasoline consumption into the cylinders and speedy evacuation of exhaust gases after ignition.

The 426 Hemi is particular amongst muscle automotive fans as a result of it seems in a number of Chrysler vehicles. These choices embody iconic automobiles just like the Dodge Charger Daytona and Plymouth Superbird, in addition to standard fashions just like the Plymouth Barracuda, Dodge Challenger and Dodge Dart.

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