The Supertech Dual Valve Spring Kit for Toyota 3SGTE engines. This kit supplies matched dual valve springs for the 3SGTE application and includes a specific installation note: flatten the valve guide boss for the inner spring to .0160in as indicated. It provides the spring hardware specified for that turbocharged Toyota engine application.
Supertech Toyota 3SGTE Dual Valve Spring Kit (Flatten Valve Guide Boss for Inner Spring to 0160in)