GM88958689 - GM PERFORMANCE RACING VALVE LIFTERS OEM FITS GM LS SERIES 16-SET

As developed by GM Racing and GM Powertrain. For use in Gen III and Gen IV engines where sustained high rpms are typical. Special reduced-mass internal components allow for hgiher limiting speeds with aggressive camshafts designs. Improved valvetrain dynamics and stability will imporve horsepower,and high rpms. Tested to 8000 rpm in GM Racing applications. Set of 16.