Roush Performance
2011-2012 BOSS 302R LH Cylinder Head Assembly – Ford Racing

Fits 2011-2012 Ford Mustang GT, Boss 302, Boss 302S and Boss 302R Production cylinder head used on the Ford Mustang BOSS 302 and 302R race car Head assembly is fully CNC'd ports and chambers Loaded LH cylinder head assembly minus camshafts, rocker arms and lash adjusters 37mm hollow stem intake valve 31.8mm sodium filled exhaust valve (31mm on base 5.0L) Incresed rate valve springs can support 12 mm intake and 13 mm exhaust max lift (base head is 12mm/12mm) Intake side flows approximately 4% more than base 5.0L head 193cc intake port volume Chamber volume nominally 55.6cm Use head changing kit M-6067-M50BR Special Order, Please allow for longer than normal lead times.