Edelbrock 60057 Ford 390 FE Performer Aluminum Cylinder Head 170cc Intake Ports. Performer RPM Heads are direct bolt-on components for 1961-76 390-427-428 Ford engines. These are an NHRA accepted head for Stock and Super Stock Classes. They feature 72cc combustion chambers, are not port matched or bowl blended, and are designed for stock replacement valves.It eliminates wearing of the threads and the possibility of bottoming the rocker shaft bolts in the head. They are 0.230'' shorter than a conventional spark plug and have a 5/8'' hex for easier access. JEGS High Performance 101 Jeg's Place Delaware, Ohio 43015. The item "Edelbrock 60057 Ford 390 FE Performer Aluminum Cylinder Head 170cc Intake Ports" is in sale since Thursday, May 31, 2012. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts". The seller is "jegsperformance" and is located in Delaware, Ohio. 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, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Russian federation, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica.