 | When the 426 Hemi was introduced in 1964, it was strictly a racing engine. That year, four Hemi-powered Mopars swept the Daytona 500, finishing 1-2-3-4. It caught the racing world by surprise, and prompted NASCAR to impose stricter production rules on Chrysler. Instead of producing a few blueprinted Hemi motors each production year, they would have to produce several thousand and sell them in street-legal cars. Four bolt mains were standard on every 426 Hemi, street or race.
The motor was essentially ruled out of NASCAR in the 1970s, and emissions laws, production costs, and insurance surcharges ended the street version after 1971. | |
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