Ferrea Valve Locks | Subaru EJ25 STi 04+ K10074

• 2004-2007 Subaru | WRX STI

Ferrea designed and developed as a solution for the Top Fuel & Funny Car engine builders experiencing problems of premature wear in the lock and tip area of the valve. So when premature failure started happening in the sport compact ranks, Ferrea was ready with plenty of solutions. Ferrea's new lock assembly replaces the need for hard tips, by incorporating a special lash cap which is surrounded by a shouldered valve lock which "locks" the valve stem above and below the keeper groove and secures the lash cap to prevent any unwanted movement. The innovative new lock design is the choice of many Drag Racing and Winston Cup engine builders.6 mm. Radial Groove. Use with Ferrea Titanium Retainer E11064 or E11065.Sold per valve. Please order the correct amount for your application (normally 16).

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