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Cathedral Vs Rectagular Port Cylinders Head To Head 014

 
Ghtp 1205 Cathedral Vs Rectagular Port Cylinders Head To Head 014
Cathedral Vs Rectagular Port Cylinders Head To Head 014
11 Now it was time to find out how well the cam designed for the rectangular-port heads (289LRRHR14) would work with the cathedral-port heads. The rec-port cam shared lift, intake duration, and LSA with the previous cathedral-port cam, but differed by offering 255 degrees of exhaust duration. The extra exhaust duration improved peak power numbers to 639 hp and 578 lb-ft, but the penalty was a drop in power below 4,500 rpm. View Related Article
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