Archive for April 26th, 2019|Daily archive page

HEMI® Day: Running the numbers on history-making engines

Performance car fans celebrate April 26 as HEMI® Day, marking the day the calendar aligns (4/26) with the displacement of the second-generation V-8 powerplant.

Join the celebration: Pull on your HEMI and Mopar gear and give the throttle of your car or truck a blip or two to let everyone know today is a special day.

The nearly 70-year history of HEMI engines at our company is filled with plenty of numbers. Here are a few of our favorites:

  • 1950: The original hemispherical combustion chamber engine design is introduced with the FirePower name for 1951 model-year Chrysler vehicles, rated at 180 hp. Dodge, DeSoto and Imperial also used versions of the engine
  • 138: Decibels of the FirePower-driven Chrysler Air Raid Siren
  • 1958: Final year of the first-generation HEMI engine
  • 1964: The Gen II 426 Race HEMI engine debuts as Richard Petty laps the field and wins the Daytona 500. Top three finishers are powered by 426 Race HEMI engines
  • Also 1964: “Big Daddy” Don Garlits breaks the 200-mph barrier with a Gen II 426 Race HEMI-powered car, covering the quarter-mile in 7.78 seconds at 201.34 mph
  • 1965: NASCAR blocks the 426 HEMI by mandating a minimum level of street car production
  • 1966: With the launch of the street version of the 426 HEMI, the engine returns to NASCAR. Petty again wins the Daytona 500
  • 11,000: The number of Gen II 426 HEMI engines produced for customers, making muscle cars with the engine sought after by collectors
  • 350: Net horsepower rating of the Gen II 426 HEMI in 1971
  • 345: Horsepower rating of the Gen III 5.7-liter HEMI when it debuted in 2003 in the Ram pickup
  • 345, 370, 376, 392: Cubic-inch displacements of the Gen III HEMI (5.7-liter, 6.1-liter, 6.2-liter, 6.4-liter)
  • 840: Horsepower rating of the supercharged 6.2-liter HEMI Demon engine in the 2018 Dodge Challenger SRT Demon.
  • 1,000: Horsepower rating of the “Hellephant” 426 Supercharged Crate HEMI engine
  • 11,000+: Horsepower of the nitro-fueled Gen II HEMI-based engines used by drag racers today in NHRA’s Top Fuel and Funny Car classes.

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