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Mar 26, 2018 · Known as the "Elephant" engine due to its massive size and cylinder heads, the 426 Hemi arrived on dealer showrooms in 1966, available in several models in the Dodge and Plymouth full-size lines....
The Chrysler 426 Hemi and all Chrysler RBs had oversquare bore and strokes, both the 426 Hemi and 426 Wedge having a bore × stroke of 4 + 1 ⁄ 4 in × 3 + 3 ⁄ 4 in (108.0 mm × 95.3 mm). The 426 Hemi, in "Street Hemi" form, was produced for consumer automobiles from 1966 through 1971.
- A Brief History of The 426 Hemi Engine
- Hemi’s Homologation Success
- Cars with The 426 Hemi Engine Under The Hood
- Street Hemi vs. Race Hemi
- 426 Hemi Engine Specs
- Dominating NASCAR with 426 Hemi Power
- The 426 Hemi Engine’S Reign in NHRA Racing
- How Fast Is A 426 Hemi?
- Conclusion
The Hemi engine designoriginated in the 1940s for airplanes and was used in Mopar production and racing vehicles from the 1950s. Hemispherical combustion chambers and opposed-angle valves were discovered to increase combustion efficiency and exhaust cooling properties. The first-generation Hemi engines were available from 1951 to 1958 in various si...
The 426 Hemi was homologated. In motorsports, homologation is a process where a vehicle or engine must be produced in a certain number of units for road use before it can be eligible for competition. Chrysler homologated the engine for both NASCAR and drag racing purposes. For NASCAR, in the 1960s, the governing body required manufacturers to produ...
In the 1960s and 1970s, the 426 Hemi big block engine was a more costly option than its small block Moparsiblings. On average, adding a Hemi during this period would increase the price by roughly $1,000, making it out of reach for most buyers. The average cost of a new car back then was around $3,000 to $4,000, representing a significant premium. H...
Chrysler created two versions of the 7.0L Hemi engine for race and street applications. The race Hemi was exclusively used in Mopar’s NASCAR performance vehicles in the 1964 season and then shelved until 1966 when the street 426 Hemi engine was produced. The race Hemi’s aggressive performance cam and high 12.5:1 compression ratio made it unsuitable...
Below are the street and race 426 Hemi engine specifications, including displacement, block/heads, configuration, bore x stroke, compression ratio, firing order, engine weight, horsepower, and torque. The 426 Hemi engine for street vehicles was equipped with twin Carter 4-barrel carburetors, each with a 4-bolt flange and 625 cubic feet per minute (...
The Mopar 426 Hemi engine significantly impacted NASCAR during the 1960s and 1970s. Here are a few notable drivers, their vehicles, and some of their accomplishments in NASCAR: 1. Richard Petty: Arguably, one of the most famous NASCAR drivers, Richard Petty, also known as “The King,” drove a Plymouth Belvedere in the 1966 and 1967 seasons. Petty wo...
The 426 Hemi-powered Dodge and Plymouth vehicles dominated the NHRA Super Stock class in the mid-1960s, winning numerous national events and three consecutive championships from 1964 to 1966. Check out some standout NHRA Super Stock drivers, their rides, and noteworthy achievements: 1. Dick Landy:Landy drove a 1964 Dodge 330, winning the 1964 U.S. ...
While the 426 Hemi may not seem overly impressive by current benchmarks, its performance during its heyday was nothing short of astonishing. The 426 Hemi’s street versions had quarter-mile elapsed timesranging from low 13s to low 14s, with speeds up to 110 miles per hour. Racing versions recorded times as low as 9 seconds elapsed, hitting speeds up...
Chrysler’s 426 Hemi engine has etched its name into the annals of automotive history as an iconic powerhouse that revolutionized the muscle car era. This legendary engine’s street and race versions showcased Chrysler’s commitment to engineering excellence, offering unrivaled performance and speed for their time. The street version delivered exhilar...
Tom Hoover, often been called the father of the 426 Hemi, started working at Chrysler in 1955; he was one of the engineers responsible for the incredible Slant Six Hyper-Pak, which helped Valiants at the first and only NASCAR compact car race to place first through seventh.
Apr 27, 2022 · How did the 426 cubic inch V8 come to acquire the hemi hardware that set it apart from the competition? Unsurprisingly, its roots ran deep in motorsport, where a number of rule changes combined with Chrysler's existing engine program to birth one of the great beasts of high performance history.
Feb 23, 2024 · The 426 Hemi made its debut in race cars, establishing its reputation as a powerhouse on the track before becoming available to the public in subsequent years. Its performance prowess was undeniable, with Hemi-equipped cars dominating NASCAR races in 1964.
Jun 15, 2016 · On January 28, 1964, the 426 Hemi (Project A-846), roared to life in the dyno cell of Chrysler, beginning tests on the engine for a debut at the 1964 Daytona 500, and we all know how that...
