Brian Tooley Racing LS Valve Seal Kit, 8 Black Intake and 8 Black Exhaust Seals Includes Valve Seal Installation Tool LS Valve Stem Seal Kit For Stock Powdered Metal and Bronze Guides Separate Spring Locator is Required Valve Stem Seals Keep Unwanted Oil From Entering the Combustion Chamber Kit Includes 8 Black Intake and 8 Black Exhaust Seals