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Racing Valve Seats AFR Head Combustion Chamber

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AFR's heads are noted for their good seat science, whether it be on as-cast heads or CNC heads (shown). The radius on the exhaust is an important part of the equation toward allowing this production-style exhaust port to flow an outstanding 240 cfm at 0.700-inch lift.
Valve Seat Power

 AFR's heads are noted for their good seat science, whether it be on as-cast heads or CNC heads (shown). The radius on the exhaust is an important part of the equation toward allowing this production-style exhaust port to flow an outstanding 240 cfm at 0.700-inch lift.  View Related Article

 

 

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