COMP Cams engineered the #26124 valve spring to have increased spring rate, as well as higher seat load for much better dynamic stability than factory springs. Unique ovate spring wire was selected to better manage operation stresses, create additional dynamic control and help valve train reliability at elevated RPM and boost pressures. Springs are also available in sets of 32 (Part #26124-32) or as a kit with the valve Seals and shims (Part #26124-Kit)