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

Compatible with LSA/ZL1/Magnuson 2650 Superchargers

12-rib crank pulley stock Dia. 7.950 designed for the Magnuson TVS2650 with 10 Rib.

Bolt's to aftermarket harmonic damper's supporting both 3 and 6 bolt pulleys using the classic SBC/BBC bolt pattern such as the ATI 918854 LSA Damper.

2.281 center hole compatible with SBC/BBC drive mandrels for external accessories

Custom Machined in house on our HAAS CNC Mill and Lathe from Billet 6061-T6 Aluminum.

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