The LSA /ZL1 Supercharger Heavy Duty Race Drive design is specifically for the LSA/ZL1 supercharged engines used in extreme applications. The unique Race Drive pulley positions are optimized to provide extreme belt wrap to avoid slippage under heavy loads during racing and extreme usage. Available in 8 rib, 10 rib combinations

The LSA Race Drive will make 5% to 10% more boost that the factory spring loaded tensioner when properly tensioned to the recommended belt tension

Recommended Power levels

• 8 Rib Up to 700HP-800HP
• 10 Rib 800HP-900HP
• Need to make more horsepower? Click Here for our all new 2650 Flex Drive

Installation Requirements:

• On engines not running high mount A/C or running Low Mount A/C
  • GM 12628025 LSA tensioner with a 68MM pulley (CLICK HERE)
    
    
  • If you already have a GM LSA Tensioner part number 12628025 ,You will need to purchase the 68MM Pulley Part Number LSX-419604 to clear the back plate on the race drive

Features:

• Double shear pulley mounting greatly reducing axle flexing.
• Provides maximum belt wrap that won't slip at sustained high engine speeds.
• Supports virtually any know upper and lower overdrive pulley used individually or in combination. It allows up to a 10 inch lower crank pulley and any overdrive upper pulley (stock 3", 2.85", 2.55", 2.38", etc...)
• Rigid belt tension with unique tension setter.
• Supports both standard deck and tall deck applications including blocks with manifold spacers.
• Direct bolt on.
• Want a spring loaded tensioner thats compatible with high mount AC? (LSA Flex Drive kit)
• Compatible with our Corvette Spacing 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:

• Mounting bracket and all attachment hardware required for race drive
• 3 Pulleys (1 - 8 rib and 2 - smooth idler pulleys shown in picture)
• Front and rear mounting plates
• Belt adjustment tool
• Dayco Belt Tension Gauge
• Tailors tape measure for determining proper belt length

NOT INCLUDED

• Crank Pulley
  
• Upper Supercharger Pulley
  
• Water Pump

Additional Info:

• Black Anodized kits ship 1-2 weeks
• How to use your Dayco Belt tension Gauge (Link)
• Installation Instructions (Download)
• Custom 10 Rib crank and upper supercharger pulleys available by special order

Why don't you make a Truck or GTO kit for the LSA?

What do I need to do for an LSA/ZL1 supercharger swap - Part 1

ZL1/CTS-V LSA superchargers Calculating Boost on your ZL1 / LSA swap