TB Parts Replacement V2 Race Head Kit - TBW9017
02-09 KLX & DRZ 110's
10-Current KLX110 & 110L (Requires TBW0645 Cam Sprocket)
Pitster Pro 155 Z & ZS155
YX/Piranha/GPX 150cc & 160cc
- 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 a higher lift V2-2 Cam if preferred, just email after your order is placed and request the change)
This kit only includes our new Race Head V2 and camshaft (see Important Note below). 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 professional level of performance yet is still affordable for the privateer rider. These are high quality parts and require no machining to the cases or other modifications - bolt on and go!
Important Note: This kit does not contain a piston. You will need to either use one of Trail Bikes newly modified pistons or check your your clearances very carefully and modify your piston's reliefs to clear the bigger valves, if need be. This head will not work with any of Trail Bikes KLX big bore pistons sold prior to 3/18/08.
For proper valve clearance you MUST run TB Parts 60mm, 64mm, 67mm or other pistons with proper valve reliefs.
Stock piston NOT recommended unless machined and clearances checked by a professional.