NLA-104-322-56 Exhaust Valve Guide. .559-inch OD. Oversize. Fits 356 912

For valves with 10 mm stem --  All 356 and 912 three-piece case engines – This guide is 14,20 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.

NLA-104-322-56