616-104-321-00 Intake Valve Guide, Standard

For valves with 10 mm stem --   All 356 and 912 three-piece case engines – This guide is Std Size:  14,07 OD  x  73,00 length.  Guide is US-produced, made from superior phosphorus-bronze with provision for valve seal. You need 8 per engine. 

For installation lengths and tolerances, follow the Porsche Specifications Book, pages 42 – 47.

616-104-321-00