PAC Racing Springs 500 Series 10 Degree Titanium Valve Spring Retainer - 0.721 in OD Step - Beehive Spring (Set of 16) 2070117 rigid and work hardened to

rigid and work hardened to over 80

tube design provides excellent exhaust flow to let your F-Series Ford truck's factory Big Block engine breathe easy

3/8" and 1/2" NPT adapters

12 AN Male to 12 AN Male O-Ring Seal

PAC Racing Springs 500 Series 10 Degree Titanium Valve Spring Retainer - 0.721 in OD Step - Beehive Spring (Set of 16) 2070117 rigid and work hardened toProduct Description: Valve Spring Retainer 500 Series 10 Degree 0. 721 in OD Step Beehive Spring Titanium Set of 16 Traditional Springs are made from the same size (Diameter) wire throughout the helix of the spring. PAC Racing Springs has partnered with technology leaders in order to provide this advanced new tapered wire product. Tapered wire allows for a true progressive and dual rate without reducing spring travel and increasing weight from