PAC Racing Springs 400 Series Titanium Valve Spring Retainer - 0.795 in / 0.517 in OD Steps - Single Spring - Ford Modular (Set of 16) QA1TK11 It has been redesigned with

It has been redesigned with internal fluid ports that eliminate the external fluid cross-over tubes

a We feature Milodon Oil Pans

Thick 1-piece 1/4" billet aluminum gasket flange for excellent sealing

create downforce

PAC Racing Springs 400 Series Titanium Valve Spring Retainer - 0.795 in / 0.517 in OD Steps - Single Spring - Ford Modular (Set of 16) QA1TK11 It has been redesigned withProduct Description: Valve Spring Retainer 400 Series 0. 795 in 0. 517 in OD Steps Single Spring Titanium Ford Modular 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