The Supertech valve guide conversion kit for VW converts valve stem fitment from 8mm to 7mm for intake and exhaust valves, enabling use of smaller-stem valve options during repairs or engine builds. It provides a practical solution for shops adapting different valve inventories, restoring correct clearance and alignment where the conversion is required.
Supertech VW Intake/Exhaust Valve Guide Conversion From 8mm to 7mm Stem (Drop Ship Only)