These are good for up to. 700" lift cam. The retainers are in great shape too. The largest single source of waste paper collected for recycling is corrugated boxes. Recycling one ton of cardboard saves over 9 cubic yards of landfill space.
16 PSI Endurance Polished Maxi Life 1.310" Valve Springs Manley PAC Comp
16 PSI POLISHED 1.460" O.D. Valve Springs & 16 Manley ICD Titanium Retainers
16 PSI Polished Roller Cam Valve Springs #506@ 1.220" with 300M Steel Retainers
16 PSI JH-3C Polished 1.300" Valve Springs & Mini TopLock Titanium Retainers
16 PSI RCR-10CR Polished 1.315" Valve Springs & Mini TopLock Titanium Retainers
16 PSI Polished Maxi Life 1.310" O.D. Valve Springs & Xceldyne 300M Retainers