Pulley and belt
The 2.75 inch pulley uses 994K6. The 2.85 inch pulley uses K061005 / 1005K6. Measure the belt for other sizes and verify the routing and tensioner position on your build.
BUILD NOTES
Guides and fitment
Use these notes while selecting parts, then verify the configuration against your vehicle and hardware.
Cooling choices
Select the car or SUV reservoir where offered. The pump package contains a supercharger pump, bracket and pigtail. Other choices add a heat exchanger and reservoir. Hoses and plumbing are separate.
Supercharged Build List
The Crash N Bern 2011–2025 5.7L and 6.4L supercharged build list, including the supporting parts, wiring and installation supplies used to complete the conversion.
View build list →2020+ Sierra and Silverado MultiPro Tailgate Wiring
Bernie’s wiring guide for operating a newer Sierra or Silverado MultiPro tailgate after a bed conversion, including the endgate and auxiliary-tailgate wiring references.
View tailgate guide →Conversion videos
Five most viewed videos from our popular 5.7 build.
Hellcat Supercharger on a 5.7 HEMI With E85 - Part 1
Hellcat Supercharger on a 5.7 HEMI With E85 - Part 2
The REAL Cost to Supercharge Your Hemi!
Hellcat Supercharger on a 5.7 HEMI with E85 - Part 3
Hellcat Supercharged 5.7 Dyno Day Results!