Thorsten Pieper Valve Adjusting Screw - Swivel Foot Style - For 10mm Rocker Arms - Bus/Vanagon/914

911 style valve adjuster, made by Thorsten Pieper Germany. These adjusters fit the late Type 4 engine rocker arms with 10mm threads. 911 style adjusters have been used in performance engines since the days of Gene Berg. A must for performance engines, and an excellent upgrade for stock engines. These valve adjusters allow more precise adjustments and are especially needed when running high lift camshafts or ratio rockers. 10mm x 1.0 thread. NOTE: These adjusting screws may require a modification to the rocker arms. Do not use these on an engine with hydraulic cam followers. Detailed image shows 911 adjuster for reference. Available only in a kit of 8.