Magnum Powers 10 Rib 15% SC & JS Pulleys, Belt & Tensioner Springs

The ULTIMATE throttle body for your 3.8L SC engine. This unit is designed to work best with the Magnum Powers Supercharger Inlet Plenum/MPx blower. It will will fit a standard inlet plenum but substantial porting will be required to port match the 85mm inside diameter to the plenum inlet.

The original!  No other SC top throat is bigger! The only enlarged throat supercharger top available with a thin, stock looking lower flange. Our BRAND NEW aluminum castings provide superior flow capability with a larger throat opening than ANY welded top that uses a spacer.

This billet aluminum crank pulley is significantly lighter than the stock steel crank pulley and best of all...it allows for another 10% of overdrive on the supercharger without worrying about belt slippage. Typically adds 3 to 4 psi of boost.

The MPx 90 cubic inch displacement Supercharger case is cast from 356-T6 aluminum. This material is significantly stronger than the factory Eaton material. It has longer intake and exit port duration then the factory Eaton design allowing the supercharger to easily be spun much faster without loosing volumetric efficiency, which results in the generation of excessive heat.

This Performance Package with a stock long block is capable of huge power gains for stock or modified engines when combined with other supporting air flow and fuel upgrades.

This Performance Package with a stock long block is capable of huge power gains for stock or modified engines when combined with other supporting air flow and fuel upgrades.