This is a machine shop service on your cylinder heads. We are offering many optional performance packages. These include the standard 107 port package. This option includes new guides, isotropic valve springs, head ported and flow tested. Here are some flow test results. Test pressure is 28in of water. Intake stock intake ported exhaust stock exhaust ported. 100 96 118 88 100. 200 189 211 169 181. 300 255 275 177 207. 400 288 323 185 220. 500 303 355 188 247. Valve seats are CNC machine. Intake port has diamond type finish, exhaust is sand-rolled finish. In March 2017 we will have guides, oversize valves, spring kits available. We will offer the Q-4 conversion kits which include 4 different size valves and guides with spring kits. We have a u tube video being posted showing a flow test on these cylinder heads. In near future we will be offering complete Short-Block Charlie Signature Series STREET GLIDE motorcycle complete. For more information call the future looks great on the M8 we have video on U-tube. Harley Davidson M8 107/114 cylinder head Flow Testing – YouTube. This item is in the category “eBay Motors\Parts & Accessories\Motorcycle & Scooter Parts & Accessories\Engines & Engine Parts\Cylinder Heads”. The seller is “az-motorcycle-man” and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, Korea, South, Indonesia, Taiwan, South Africa, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Croatia, Republic of, Malaysia, Colombia, Barbados, Bangladesh, Bermuda, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Oman, Pakistan, Paraguay, Reunion, Uruguay, Israel, Bahrain, Chile, Panama, Jamaica.
- Manufacturer Warranty: Yes