S&S KN hi-lift valve spring kit BT36-47

These valve spring tins are originally designed by Flathead Power and standard on S&S KN-series engines. Features and benefits are:
•Improved design for better oil scavenging and less leaking
•Die-cast lower covers can be removed without pressing out valve guides
•Improved oil return lines are easy to replace and service
•Relatively stock appearance
•Work with S&S rocker arms and shafts ZPN782399, S&S high lift valve springs ZPN782746 and S&S stainless steel oil line kit ZPN782740

Stock rocker arms and shafts require modification to be used. S&S high lift valve springs have a smaller than stock inner diameter, thus must be used with S&S valve guides or stock valve guides must be turned down.