34mm Oversize Ex. Valve Solid lifter 8V (Audi 10v) (7mm stem)

Description

Oversize stainless exhaust valve 34mm, 7mm stem necked down to 6.5mm for Solid lifter 1.8L 8v head. 10 grams lighter than stock. Higher flow than std. valve. Black nitride treatment reduces friction, improves heat dissipation and Valve guide wear. (To convert 8mm head to 7mm. Parts needed 109 222 exhaust valve guide, 109 290 7mm keepers, 109 085 (5 cyl 109 855)(109 136 (5 cyl 109 1365) Titanium) upper retainers, 109 322 exhaust seals)