* Bolt-on 9-12 Horsepower
* All New CNC Machined BBK Casting and Components
Since the early nineties, BBK Performance Throttle Bodies have been a top bolt on performance choice for owners of GM models equipped with the popular Tuned-Portand LT-1 models. Whether you're the owner of a Corvette, Camaro/Firebird, or Impala SS, these twin 52mm & twin 58mm throttle bodies will add 9-12 horsepower to your stock application and even more with other power adders. Starting with a custom BBK356 aluminum casting which is then fully computer machined and assembled with dozens of aircraft quality components, each throttle body is built to last as well as it will perform. Unlike carburetors which deliver air and fuel to a motor, throttle bodies are air valves and can be sized to eliminate restrictions and deliver the needed airflow for maximum power without sacrificing drivability or mileage.