Dodge GSS Supercharged Demon

The car is light, responsive and unbelievably quick!

The “world headquarters” for great deals

Grand-Spaulding Dodge, located in Chicago, Illinois, became known as the “world headquarters” for great deals on brand-new Dodge high-performance cars.

Grand-Spaulding Dodge newspaper Ad
Norm Kraus and his brother Lenny sold these Dodges in very high volume, said to be always at $200.00 over dealer invoice.

Factory high-performance Mopar components

Besides all the new car action, their parts department was unique in that, in addition to selling replacement parts and factory high-performance Mopar components, it was like an in-house “speed shop.” The back room of Grand-Spaulding was stocked with all kinds of aftermarket racing equipment:

  • Edelbrock manifolds
  • Holley carbs
  • a line of “Mr. Norm” equal-tube-length headers
  • Crower cams
  • Milodon oil pans
  • a variety of custom wheels and wide tires

When the factory released information in late 1971 that the next generation of 340-cid engines were going to receive some “performance killing” changes. The horsepower rating went down from 275 to 240 and some said this was the end of true high-performance.

 The supercharged 1972 Demon GSS

Dodge Supercharged Demon

This belt-driven supercharger device turned out to be the perfect response to the lower factory compression ratio for the 340-cid engine, as the new 8.5:1 pistons were ideal for blower applicati

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Dodge GSS Supercharged Demon