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11 12 Cylinder head with valve seat cover

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CYLINDER HEAD WITH VALVE SEAT COVER SPECIFICATION

Valve seat angle ° 45
Correction angle: outer ° 35
Correction angle: inner ° 55
Valve seat width: Intake mm 0.9 +0.1
Valve seat width: Exhaust mm 1.15 +0.1
Ø Valve seat    
Valve seat surface: Outside dia. inlet mm 31.6+0.1
Valve seat surface: Outside dia. exhaust mm 27.6+0.1