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Racing Valve Seats Detail Illustration

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Here is a Newen CNC-machine-generated seat form that proved effective on a production-style head. The top cut (green) is at 37 degrees by 0.020 inch wide. The seat (red) is 45 degrees and 0.060 inch wide. The form below this (yellow) is a radius that joins the seat at 50 degrees and ends at 80 degrees. The blue section is an 80-degree cut that blends into the port.
Valve Seat Power

 Here is a Newen CNC-machine-generated seat form that proved effective on a production-style head. The top cut (green) is at 37 degrees by 0.020 inch wide. The seat (red) is 45 degrees and 0.060 inch wide. The form below this (yellow) is a radius that joins the seat at 50 degrees and ends at 80 degrees. The blue section is an 80-degree cut that blends into the port.  View Related Article

 

 

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