The Supertech valve guide conversion set adapts VW intake and exhaust valve guides from an 8 mm stem to a 7 mm stem and is supplied as a set of ten. Intended for valve train conversion work, these guides let technicians replace or convert existing guides to accept 7 mm stem valves where that dimensional change is required.
Supertech VW Intake/Exhaust Valve Guide Conversion From 8mm to 7mm Stem - Set of 10