Replacement black oxide steel 2300AXO Whipple JB Performance supercharger pulley. Made to the sizing specifications as the original for proper centering and less vibration. We use the correct cutting tools for proper belt grip. We also choose steel as it will wear less and cause less belt slip. This will be the last pulley you will ever need!

The pulley sizes below are in stock. If you require a size not shown below, please email us. There will be a $80 up-charge to have it produced in your specific size.

2.75" (This is the smallest size possible)

3.00"

3.25"

3.5"

3.625" in aluminum

3.75"- in aluminum

3.875" in aluminum

4" in aluminum

4.125" in aluminum

4.25" in aluminum

4.375" in aluminum

4.5" in aluminum

4.625" in aluminum

4.75" in aluminum


This Whipple supercharger pulley is commonly used on 99-03 Chevy LS truck engines.

Please note that modified engines will see different results as well as if the crank pulley has been swapped to a different size. For every decrease in diameter of 1/8", boost increases by about 1 pound.


PLEASE SPECIFY SIZE IN THE NOTES SECTION AFTER PURCHASE, OR SEND AN EMAIL WITH YOUR EBAY NAME AND DESIRED SIZE.