Valve Spring Intake Exhaust Viper 03-06 8.3L

New valve spring for Dodge Viper 8.3L 2003-2006.  This spring will work on intake or exhaust valves.  Sold individually, 20 required for a complete engine.   Choose from OEM or aftermarket PAC spring.  The PAC spring will handle a little more lift than the OEM spring, but otherwise similar specs to OEM.  Both springs are stock replacement.   PAC spring specs: DescriptionV-10 Viper Ovate Beehive Valve Spring OD Large End 1.250 ID Large End 0.845 ID Small End 0.680 Install Height 1.750 Load at Installed Height 110 Spring Open Height 1.150 Spring Open Load 328 Recommended Valve Lift 0.600 Spring Rate (lbs/in)363.000 Mass (grams)73.80 Coil Bind (max)1.080 * OEM springs look to be discontinued.