Here’s some before and after pics of an aluminum cylinder head that came in for repair. The cylinder head is for a 450 KTM four stroke motorcycle. The valve seats were slightly pitted so we machined the intake and exhaust seats with our three angle valve seat cutters on our Tobin Arp seat-and-guide machine for a high performance valve job. We then surfaced it square and flat with the proper RA (roughness average) for use with an MLS (multi layer steel) head gasket.
Motor Mission Machine & Radiator 5435 Desert Point Dr. Las Vegas, Nv. 89118 Phone: (702) 649-2366 or (702) 649-0648 Fax: (702) 649-4133 www.MotorMission.com Facebook.com/MotorMission