SpeedFactory has been a top notch tuner of the latest Hemi cars from Chrysler and this latest iteration should solidify them as one of the best.

SpeedFactory replaces the factory iron 6.1L Hemi block with an aluminum piece from Mopar Performance and punches it out to 7.2L, or 440 cubic inches.  The stock 6.1L heads are then put aside in favor of CNC ported aluminum offerings from Mopar Performance.

The short block is filled with forged internals and the fuel system is upgraded to supply adequate fuel to withstand the air/water intercooled boost from the Vortech V3 centrifugal supercharger system.  The results are 700 horsepower and over 250 lbs shaved off the front end.

SpeedFactory will be offering this upgrade to customer cars.

• New 3G Aluminum Hemi blocks from Mopar
• Hurst adds another color scheme to their supercharged Challenger line
• 2011 Chrysler 300C spy shot