Supertech SPRK-1002 valve spring set fits Toyota GT86 & Subaru BRZ FA20 Supertech sprk-1002-brz - сервиз

Sport valve spring set from Supertech made of high quality tempered steel with titanium spring plates for all FA20 Boxer engines.These valve springs have an extra adjusted spring rate. - Better and faster response - Higher engine speed possible - Lighter valve train due to titanium plates - Absolutely stable for high rpm Outer spring outer diameter: 29,05mmOuter spring inner diameter: 21,85mmInner spring outer diameter: 20,50mmInner spring inner diameter: 15,50mmValve seat pressure: 33,57kg/33,5mmPressure open: 78,93kg/10mmMax. Stroke: 14.00mmMin. spring height (when compressed): 19.50mmSpring rate in lbs./mm: 10.00 Included in kit: 16 valve springs Spring retainer made of titanium top Spring retainer from steel below