Cylinder Head Angle Milling
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After angle-milling the deck, Butch Roberts of Leagon's Racing Heads double-checks the valve angle against his calculations. He does this by inserting a pilot into the valveguide, then checking the angle of the pilot against the deck of the head with a machinist's protractor. This is a tool that's worth its weight in gold when angle-milling heads. View Related Article
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