RE: Mopar, Speedfactory combine to beef up the 2009 Challenger.
Stage 3 Naturally Aspirated:
-“Big Block Conversaion”, which includes having the motor bored and stroked to either 426 or 440 cubic inches
-Higher Compression Pistons
-Forged Crankshaft and Connecting Rods
-CNC Matched Intake Manifold and Cylinder Heads
-High Flow Exhaust Headers
-90mm Throttle Body
-Speedfactory Cold Air Intake
-Performance Exhaust from the catalytic converter back (cat-back exhaust)
-Speedfactory Stage 2 PCM Tuning
-Unique 20” Forged Wheels
-Speedfactory interior and exterior upgrades
- 3 year, 36,000 mile warranty applied to the motor depending on the exact application chosen
-Results: The Big Block Conversion information is only given for the 6.1L at the present time, but Speedfactory has stated that results of the Stage 3 conversion (cubic inches unknown) are typically around 600 crank horsepower – a an increase of 175hp (41% !!) There is currently no information on possible displacement options for the 5.7L Hemi.
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1972 Dodge Demon 340-1983 Dodge Mirada 340-1992 Plymouth Laser RST-2002 Dodge Stratus R/T Coupe-2006 Dodge Ram 1500 Laramie
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