Fully Assembled. Leak tested prior to assembly, each Ford Racing Boss Head comes fully assembled with factory steel guides, production springs, valves, retainers, locks, and seals. Does not include camshafts, rocker arms and lash adjusters.
Improved Air Flow. These ported Ford Racing Boss heads have an intake port volume of 193cc allowing for an intake flow of approximately 4% more than the stock 5.0L head.
Additional Features. Extra features include 37mm hollow stem intake valves and 31.8mm sodium-filled exhaust valves for improved heat dissipation.
Required Upgrade. It is required to use the Ford Racing head changing kit part# M-6067-M50BR when installing these Boss 302 heads on your DOHC 5.0L Coyote engine (see drop down option above).
Application. This Ford Racing BOSS 302R CNC Ported Driver Side Cylinder Head is specifically designed to be a direct bolt-on performance upgrade for the 2011 to 2012 GT Mustangs with the 5.0L 4-valve V8 Coyote engine. Includes left hand driver side Ford Racing BOSS 302R Cylinder Head only.
Mustang Fitment: 2011, 2012 Details >>