Technician A says surfacing the head increases combustion chamber CCs. Technician B says the volume is increased by grinding metal from the surface of the combustion chamber or by excessive grinding on valve seats. Who is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because grinding metal from the surface of the combustion chamber or excessive grinding on valve seats actually decreases the volume of the combustion chamber, not increases it. Surfacing the head (as mentioned by Technician A) would decrease the combustion chamber volume, making the statement incorrect.

Technician a Says Surfacing the Head Increases Combustion Chamber CCs