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Magnuson 2650 Heavy Duty 8 Rib MagDrive

Magnuson 2650 Heavy Duty 8 Rib MagDrive

LSX Concepts


Regular price $885.00 $752.25 Sale

The Magnuson 2650 Heavy Duty 8 Rib MagDrive design is specifically for the LSA 10 Rib pulley configuration of the Magnuson LS3/LSA TVS2650 Hot Rod kit and is based on our original LSA Race Drive Kit for the LSA/Zl1

The Magnuson TVS2650 MagDrive kit supports High Mount A/C for muscle cars wanting to run A/C without chassis modifications using the LSX Concepts High Mount A/C kit with Corvette spacing.

The unique MagDrive pulley positions are optimized to provide extreme belt wrap to avoid slippage under heavy loads during racing and extreme usage.


Installation Requirements:

  • Magnuson GM LS3/LSA TVS2650 Supercharger Hot Rod Kit part Number 05-00-26-153-BL with the 'LSA Drive - 8 Rib Pulley' configuration
  • Magnuson 8 Rib Upper Supercharger Pulley
  • LSA/ZL1 Water Pump (80MM)
  • On engines not running LSX Concepts high mount A/C a C5 Corvette belt tension ACDelco Part Number 38328 or equivalent is required for the main 6 rib drive belt


  • Triple redundant mounting greatly reducing drive system flexing under high boost loads. 
  • LSX Concepts newly developed Billet Double Bearing 73MM Idler Pulleys. 
  • Provides maximum belt wrap with a 8 ribbed belt. 
  • Rigid Belt Tension Design proven on our “RaceDrive” with our own unique tension setter. 
  • Supports standard deck, tall deck and blocks with manifold spacers. 
  • Compatible with GM’s Corvette pulley spacing that use our High Mount A/C and Alternator and Power Steering Bracket Kits. 
  • Also Compatible with GM Factory and Aftermarket Corvette Spaced Accessory drive kits with or without low mount A/C. 

What's Included:

  • 4ea.  73MM Billet Aluminum Double Bearing Pulleys (2 - 8 rib, and 2 - smooth idler pulleys) 
  • Front and rear Magdrive mounting plates with all required hardware
  • Belt Tension adjustment tool
  • Dayco Belt Tension Measuring Gauge 

Optional Items:

  • ATI Damper with Steel Hub - 918854

Additional Info:

Overdrive Info:

The Magnuson 2650 Hot Rod supercharger can easily be over driven using different Gilmer drive pulleys at the back of the supercharger. Superchargers from Magnuson come standard with a 32/34 pulley set that provide a 6% Under or Overdrive combination, pulleys in sizes of 30-38 are available in 2 tooth increments and we have listed the most common OD ratios below

Using our Stock 7.950 10 Rib Lower Crank Pulley

  • 30T - 38T = 27% OD
  • 30T - 36T = 20% OD
  • 32T - 36T = 13% OD
  • 32T - 34T = 6% OD
  • 34T - 32T = 6% UD (default)

Using our 12.5% - 8.950 10 Rib Lower Crank Pulley (call for availability)

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