The VFactor 23° cylinder heads start with a premium Aerospace Specification A356 (Primary Virgin Ingot) aluminum casting which is both light weight and extremely corrosion resistant that is semi-finished by Pro-Filer Performance. This casting also features a solid rocker pad for improved valvetrain stability and a revised spark plug location to improve flame travel. We then complete the machining process on one of our in house 5 axis CNC machining centers. This includes CNC machining of the intake and exhaust ports as well the combustion chambers. Heads are finished with a Custom Multi-Angle Valve Job, valve guides honed to size and deck surface finished for MLS Head Gaskets. "I will be the first to say they are bad ass and will make serious power on any combination matched to them. I was very happy to see someone take the heads I designed and do with them exactly what they where meant for. I designed the head so head porters could take them to extreme levels of efficiency. I truly didn't expect it so soon but here it is! Chad was instrumental in the "Head porter" version of the Pro-Filer 23º head. He told me what he wanted and needed and Pro-Filer made them. It's now a standard number." - Darin Morgan on the VFactor Pro-Filer line
VFactor Heads can be purchased bare or fully assembled.
