Upgraded 200lb dual valve spring set for modified engines. Performance camshafts require stronger valve springs to prevent valve float at higher rpms, and these springs are a perfect fit for mild to moderate camshafts. These springs are made out of high quality silicone spring wire and can be used with standard or upgraded top caps.
 
Advisable for engines using cams up to .515" of lift and capable of up to 8000rpm. We have a 280lb selection for serious competition engines availible as well.