Revealed in 1964, the Chrysler 426 Hemi V8 engine was a force to be reckoned with. Initially a race only monster dominating the NASCAR circuit with the Plymouth Belvedere, its dominance was short-lived due to homologation rules requiring production availability. In 1966, Chrysler addressed this by introducing a slightly detuned “Street Hemi” for public consumption.
This new iteration, while retaining the spirit of the race engine, featured adjustments for everyday driving. It sported dual four barrel carburetors for power, but with a lower compression ratio and camshaft for better streetability.
Iron exhaust manifolds replaced lighter racing headers, and the engine found a home exclusively in Dodge and Plymouth intermediate cars like the Coronet, Charger, Belvedere, and Satellite.
Often overshadowed by its flashier siblings, the Plymouth Belvedere wasn’t known for grabbing headlines. This particular 1966 model takes things a step further it’s a bare bones Belvedere I, the most basic trim level.
But don’t let the two door sedan body fool you. This unassuming dark blue sleeper packs a hidden punch: a powerful 426 HEMI engine. Here’s where it gets interesting. With its lightweight and rigid design, this Belvedere I outperforms the fancier Belvederes and Chargers when equipped with the HEMI. It’s also incredibly rare.
Only 134 base model Belvederes received the HEMI and four speed gearbox in 1966, with estimates ranging from 22 to 79 surviving examples. This particular car, showcased at the Merits Monster Mopar car show, is likely a testament to a meticulous restoration, boasting a pristine condition inside and out.