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STI EJ207 MY11-21
These short blocks feature 14mm head stud machining and are optionally machined to accept Fire Lock head gaskets for serious combustion pressure sealing capabilities
EJ206/EJ208/EJ20H/EJ20R
1st/2nd Sleeve & Hub
GSC Dual Conical Valve Spring and Ti Retainer Set EJ No.2 Gasket STI EJ207 MY11-21KEEP YOUR VALVES UNDER CONTROL GSC's dual conical valve springs. Using a varying coil diameter as well as coil spacing offers a superior damping of valve spring harmonics even compared to beehive springs. Dampening the transfer of valvetrain shock reduces stress and increases the life of components. Dual springs provide increased valve opening range before coil bind, increased heat dissipation, and extended life vs. an equivalent single spring.
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