CONICAL W STEEL COLLARS TC -04
Source: Custom Chrome
Increase the amount of valve travel without binding for use with high-performance camshafts with higher-than-stock lift. Kits are packaged with reverse wound springs to reduce harmonics and control spring surge. Most kits are available with titanium collars for ultimate performance, or with steel collars as a lower cost alternative. Kits requiring special machining operations include complete instructions. Valve keepers are not included.