The Outfront Motorsports 575 Cylinder Heads are the perfect entry level replacement heads if you had a failure requiring you to completely replace heads or if you just want brand new heads outright. These heads are a great option for you basic bolt on engines up to 575 BHP.
The Outfront 575 Heads start with new OEM Genuine Subaru head castings. A multi-angle valve job is performed as well as a fresh resurface. The heads go through multiple cleaning processes throughout the build/machining processes. All oil plugs are removed for cleaning and reinstalled at the final step of the process.
The heads come fully assembled and bench lash set. Final lash should always be confirmed once heads are installed
These heads come with the following components
New OEM Head Castings B25 Single AVCS
GSC 36mm Intake Valves Part Number 2012
GSC 32mm Exhaust Valves Part Number 2011
GSC Single Spring Kit W/ Titanium Retainers Part Number 5743
Tomei Pon Cams Part Number TA301A-SB02A 254-10.3
Viton Valve Seals
OEM Valve Keepers
OEM Valve Lifter Buckets
Optional Upgrade to GSC Stage 1 or New OEM camshafts available
The B25 Single AVCS Castings are for 2004-2006 STI / 2004-2005 FXT / 2005-2006 LGT
