Small Parts Ship 1-3 Business Days - Full Drive kits ship 10-15 Business days - (844) 579-7927

12 Rib Supercharger Crank Pulley - 8.950 12.5% OD - LSA/ZL1/Magnuson 2650

DSX Tuning

SKU: LSX895012R

Regular price $279.00 Sale

Compatible with LSA/ZL1/Magnuson 2650 Superchargers

12-rib crank pulley stock Dia. 7.950 designed for the Magnuson TVS2650 with 12 Rib.

Bolt's to aftermarket harmonic damper's supporting both 3 bolt pulleys using the classic SBC/BBC bolt pattern such as the ATI 918854 and 918859 LSA Damper.


Looking for Overdrive Options for the Magnuson 2650?
The Magnuson 2650 has interchangeable rear cog belt system allowing for drive ratio optimization. The supercharger comes standard with a 32 and 34 tooth cogs for up to 6% overdrive of front pulley. Additional 30-38 cog tooth pulleys available in two tooth increments to overdrive the 2650 supercharger with a standard size crank pulley and 80MM supercharger pulley

Using our 12.5% - 8.950 12 Rib Lower Crank Pulley

  • 30T - 38T * 12.5 = 42% OD
  • 30T - 36T * 12.5 = 34% OD
  • 32T - 36T * 12.5 = 26% OD
  • 32T - 34T * 12.5 = 19% OD