Using our own CNC Milling machine we helical interpolate a new thread into the exhaust port to accept one of our CNC MACHINED bronze inserts. The new thread is then CNC milled inside to fit the new rose nut exactly. Because of the nature of CNC machining the external and internal threads are machined coincidentaly(both thread starting in the same position with one thread inside the other) giving a very strong insert. These bronze inserts are threaded and locked in and WILL NOT jack out. We have instock the bronze repair inserts to cope with previous repairs but in the last resort we can weld the port to fill in any poor attempts at previous repairs. Also any remedial welding where poor attempts have been made to secure the exhausts nuts will be included. The head will be also cleaned and AQUA BLASTED prior to machining. We are offering this as a guarenteed repair and the pictures are of actual repairs done in our workshop. Please note we also stock valves and guides offer a complete cylinder head repair service including fin repairs and alloy welding all to a very high standard. Or check out us on facebook. We are here to try and resolve any problems that may arrise. Thank you from the Seager Engineering Team. Patrick Seager, Unit A3, Holywells Road Ind Estate, Ipswich, Suffolk, IP3 0DL UK. We post our products on a daily basis so please allow plenty of time for items to arrive if you live outside the United Kingdom. Offer only open to mainland UK. Not including islands and certain parts of Scotland. We are here to help and appreciate your custom. About us: We offer traditional engine reconditioning with innovative repairs for old and new engines, transmission and suspension components. We also carry out in-house CAD/CAM designs and CNC machined components, prototypes, one off and small batches, from replacements to spare components. This item is in the category “Vehicle Parts & Accessories\Motorcycle & Scooter Parts & Accessories\Engines & Engine Parts\Cylinder Heads”. The seller is “seager-engineering” and is located in this country: GB. This item can be shipped to United Kingdom, Antigua and Barbuda, Austria, Belgium, Bulgaria, Croatia, Republic of, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, Canada, Japan, New Zealand, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, Korea, South, Switzerland, Taiwan, Bangladesh, Belize, Bermuda, Barbados, Cayman Islands, Dominica, Guernsey, Gibraltar, Guadeloupe, Grenada, French Guiana, Iceland, Jersey, Jordan, Cambodia, Saint Kitts-Nevis, Saint Lucia, Liechtenstein, Sri Lanka, Macau, Monaco, Montserrat, Martinique, Oman, Pakistan, Paraguay, Reunion, Turks and Caicos Islands, Aruba, Saudi Arabia, South Africa, United Arab Emirates, Bahamas, Colombia, Kuwait, Philippines, Qatar, Uruguay, United States, Bahrain, Israel, Chile, Costa Rica, Guatemala, Honduras, Jamaica, Panama, Trinidad and Tobago.

• Brand: Unbranded