The 2V 4.6/5.4 SBF Modular CNC ported heads feature a unique NEW casting that fits both the Windsor and Romeo platforms. This new casting is CNC Ported 185cc to make up to 50 Hp over stock heads, and compatible with PI camshafts. 1.78" VALVE Combustion
~ 1.84" Valve requires a 0.020 Overbore
Chamber............................46cc
Weight ..............................72.00 lbs.
Intake Runner ..................180cc
Exhaust Runner ................67cc
Intake Valve Size ..............1.78/1.84
Exhaust Valve Size ............1.45
Spring Pressure
Hydraulic Roller .600 max lift
Closed.................................115 lbs. @ 1.740
Open ...................................285 lbs. @ 1.140
Valve Guide ........................Manganese Bronze
Valve Seal Material .............Viton
Retainer Material ................Titanium
Valve Job ............................5-angle
Valve Spacing .....................OEM
Rocker Type.........................OEM
Valve Seats .........................Hardened Steel
Spark Plug...........................OEM
