Race Head V2 Upgrade Kit - GPX/YX150/160 Import Chinese KLX110 - TBW9034

TB Parts Performance 170cc/184cc Race Head V2 Upgrade Kit - GPX/YX150/160 Part Number: TBW9034 Description: 170/184cc Race Head V2 Upgrade Kit:- Race Head V2 - Roller rockers, 30mm intake valve, 24.5mm exhaust valve, 27mm intake port, 23mm exhaust port (valves installed).- Race Camshaft V2-2 for Race Head V2- 64mm head gasket kit - includes the cylinder head o-ring set and an exhaust gasket.This kit is for YX/GPX150/160 engines with our 170cc or 184cc bore kit already installed. While the bore kit provides a nice power gain over stock, wait until you try this head!! This kit includes our new Race Head V2 and while the new head may appear to be the same on the outside as our other KLX110 type race head, internally it has gone through numerous changes. The addition of roller rocker arms and a new camshaft are the biggest changes followed by bigger valves and ports. The exhaust valve is now stainless as well (21-4N material). This all adds up to a cylinder head that puts out a professiona