Complete Big Valve Race Head V1 for Kawasaki Z125.

 

Other than a big bore the 2nd biggest power gain is replacing the stock head with a head with bigger valves. Will fit with 143cc-165cc cylinders only, it will not fit with stock OEM bore cylinder.

 

Upgrading to the 143cc or 165cc Big bore kit (HTB-1004) or (HTB-1005) produces good power however to get the most out of your 143 or 165cc kit you will need to add the V1 Race Head. 

  • V1 Race Head
  • 28mm intake valve
  • 23mm exhaust valve
  • 25mm intake port
  • 21mm exhaust port (valves installed).
  • Race Camshaft for Race Head V1 with cam gear
  • Head Gasket Set
  • Billet TB Covers in black

 

You will need a new manifold to run this head on your Z125Pro

  • CHIMERA INTAKE MANIFOLD/ADAPTER WITH INJECTOR FOR KAWASAKI Z125 BIG BORE ENGINE (CH-1111) OR
  • TB PERFORMANCE INTAKE KIT FOR V2 RACE HEAD - KAWASAKI Z125 (HTB-1022)

Additional recommended operational parts:

  • Oil Cooler
  • Aftermarket Fuel Controller: Bazzaz Z-Fi or Dynojet Powercommander V w/Autotune (for those who don't have access to a dynameter)
  • Upgraded clutch parts: performance clutch springs and/or clutch disc
  • Big Bore Cylinder 143cc - 165cc

Optional parts for higher performance:

  • Bored out throttle bodies
  • Aftermarket exhaust system
  • Chimera Short Ram Intake System

Professional installation is highly recommended!

Engine break-in, aftermarket fuel controller and special tune/autotune is required! Likewise with any major engine modification or bore up kits, it's now considered a high-performance race engine, extra attention and steps are needed to maintain a high-performance engine.

TB RACE HEAD V1 FOR 143CC BORE KIT - KAWASAKI Z125 PRO

$269.99Price
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