BangShift.com WHICH LS HEADS MAKES MORE HP? PORTED REC PORT OR CATHEDRAL PORT? TFS 245 VS TFS 255 ON 427 STROKER

The Rectangle Port vs Cathedral Port argument within the LS engine world is as fierce because the Rectangle Port vs Oval Port argument that has been happening for many years within the Massive Block Chevrolet world. However the fact is that they each are nice and it is dependent upon what you’re doing and what they’re going on. Or does it?

The reality will unfold proper right here on this check engine at Brian Tooley Racing. Or will it?

Watch.

Video Description:

FULL DYNO RESULTS, REC PORT VS CATHEDRAL PORT LS HEAD TEST. WHICH HEAD MAKES THE MOST POWER? CNC-PORTED TFS 245 CATHEDRAL PORT HEADS VS CNC-PORTED TFS 255 REC-PORT HEADS-WHO WINS? RUN WITH THE SAME (BIG) CAM, SAME COMPRESSION, SAME PAIR OF INTAKES (TWIN INTAKES TESTED ON EACH HEAD CONFIGURATION). HOW MUCH POWER ARE PORTED CATHEDRAL PORT HEADS WORTH? HOW MUCH POWER ARE PORTED REC-PORT HEADS WORTH? CHECK OUT THIS VIDEO WHERE I COMPARED TFS 245 CATH-PORT HEADS TO TFS 255 REC-PORT HEADS ON A BIG CAM, HIGH COMPRESSION 427 TEST MOTOR. CHAMBER VOLUMES WERE EVEN MATCHED FOR COMPRESSION.