g-Force Hemi
Indy's Windjammer cylinder head porting is also done via an automated CNC program and the results are impressive. Intake port flow pegs the scale at 510 cfm, with an intake port volume of 295 cc. Intake port volume is critical to power production and keeping up with demand as rpm rises. A combination of high-flow and sufficient port volume is what it takes to extend torque production up the rev range, and really making use of the power output a large displacement engine can develop.
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