Ultrastreet High Performance Street Engines

SuperCharged / PowerAdder Chevrolet Engines

We've Developed Our "Power Adder" Short Blocks For Supercharged or Turbocharged Applications. Three Different Stages Offer The Power Handling Capability That You Need!


Our "Power Adder" Long Blocks Feature The Same 3 Stage Concept But Are Dyno Tested With Our Carburetor and Intake Ready For You To Bolt On Your Blower Or Turbocharger!


For "Turnkey Simplicity" We Offer Complete Dyno Tested Supercharged Engines With Your Choice Of Either The Blower Shop® Roots Style Blower Or A ProCharger® Blowthru System!