There's a considerable list of parts ... blown LS motor underperform at a high-altitude Colorado drag strip. Even after paying $1,500 to $3,000 for your (potentially stolen) Hellcat blower and ...

If your blower runs but is noisy, buy just the motor/fan assembly. However, if the motor doesn't run at all, chances are it has a bad temp sensor or speed switch. In that case, buy a complete kit.