Tomei - SOLID PIVOT SET with TEST SHIM/GUIDE SET SR20DE(T) (TA308A-NS08A)In order to make cam clearance maintenance free and quieter operation sound, the hydraulic lash adjuster was adopted for the SR20 engine. However when aiming at higher RPM ranges and for higher horsepower output from engine modifications, it is important to improve the reliability of head system parts and to make valve drive train set correctly for the suited cam profile. So it is necessary to eliminate the use of the hydraulic lash adjusters. We have