Upgrading to COMP Cams titanium valve spring retainers will often allow you to gain speed and power because titanium retainers are lighter and as strong as than most steel ones. Additionally, our Super Lock titanium design gives you confidence; no longer will you be preoccupied with splitting a retainer and tearing up an engine when turning 10,000 RPM. COMP Cams titanium retainers are made from the finest 6AL4V alloy for maximum stiffness and minimal warpage. The 6AL4V alloy is heat-treated and processed to a stringent tolerance that makes it extremely strong. Other manufacturers purchase titanium from metal brokers and produce “cheap” retainers, but COMP Cams titanium retainers will not deform. From a standing idle to the most extreme RPM, our titanium retainers perform flawlessly and without compromise. PartNumber : cca785-16 Description : Titanium Valve Spring Retainer; 16 Pieces Title : 785-16 Titanium Retainers, 10deg (260 95 Spring) California Proposition 65 : WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov Compatible Lock : 638-16 Diameter 1 : 1.15 Diameter 2 : 0.725 Lock Angle : 10 Retainer Material : Titanium Valve Spring Diameter : 1.185 Valve Stem Size : All Angle : 10° Diameter 4 : N/A Diameter 1 : 1.150" Diameter 2 : .725" Diameter 3 : N/A Spring Diameter : 1.185" Stem Size : All Engine Components::Valve Springs, Retainers