Valve Spring Set Ultimate Performance and Race High RPM Lift Up to 13mm NORD and TS Engines
INSTALLED HEIGHT SHOULD BE CHECKED AND ADJUSTED AS NECESSARY FOR DESIRED SEAT PRESSURE AND COIL BIND.
These high rev performance silicone chrome valve springs help prevent valve float and improve power in race and street high-performance engines to 8000 rpm and beyond.
Our shop has used these custom manufactured ultimate springs in our own race cars all these years. These VSS12-1 springs work well at high RPM with both performance and race cams up to 13mm lift.
For full race, these chrome silicon alloy springs will increase performance and reliability.
I just installed your valve springs. I’m actually very impressed by the quality. I checked them with a Rimac spring tester and managed to pair them into 8 sets with less than 1 lbs. in difference between the sets. Regards–PT (Denmark)