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Ls1 Heads Intake Runners

The intake runners also have the telltale marks of CNC-porting; however, they are also kept near stock at 202cc for smaller-displacement motors. Similarly, the exhaust ports are also kept small at 83cc.
Edelbrock LS1 Heads And Exhaust System - Gen III Recipe

 The intake runners also have the telltale marks of CNC-porting; however, they are also kept near stock at 202cc for smaller-displacement motors. Similarly, the exhaust ports are also kept small at 83cc.  View Related Article

 

 

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