V2 Race Head – 143cc, 165cc, & 178cc V2 Upgrade Kit - GPX/YX150/160

TB Parts V2 Race Head w/ CamTBW901702-09 KLX & DRZ 110'sAll models of the 2010-Current KLX110 (Requires TBW0645 Cam Sprocket)Pitster Pro 155Z & ZS155YX/Piranha/GPX 150cc & 160cc 143cc, 165cc, & 178cc Race Head V2 Upgrade Kit Details: – Race Head V2 – Roller rockers, 30mm intake valve, 24.5mm exhaust valve, 27mm intake port, 23mm exhaust port (valves installed).– Race Camshaft V2-1 for Race Head V2 (we can switch to our V2-2 if preferred, just email reply to your order confirmation and request the change) This kit only includes our new Race Head V2 and camshaft (see Important Notes below). While the new head may appear to be the same on the outside as our older KLX110 type race head, internally it has gone through numerous changes. The addition of forged aluminum roller rocker arms and a new camshaft are the biggest changes followed by bigger valves and ports. Both valves are now stainless as well (21-4N material).  This all adds up to a cylinder head that puts out a pr