Products | Pro Circuit Engine Performance | Pro Circuit Engine Performance Mods | 2-Stroke
Ref: 2-STR CYL HEAD MOD
This listing is for 1 x modification to your 2-stroke cylinder & head by Pro Circuit USA (for either pump fuel or race fuel)If you have a new or like new 2-stroke cylinder and head that you would like modifying by Pro Circuit USA this is for you!Engine Modifications Information:There is a fine line to building an engine. If the limits are pushed too far (like many engine builders do) there are reliability issues. Pro Circuit's goal is to give you the very best in high-performance service without any loss of reliability. Pro Circuit engine modifications will give you increased power from bottom to top!Pro Circuit has specialized in motor modifications since the early two-stroke Husky days. Pro Circuit's expertise in building the world's most advanced engines is a direct result of working with the fastest and most talented racers. Riders like James Stewart, Ricky Carmichael, Ryan Villopoto, Chad Reed and more have been a great help in our engine development process. In addition, every motor we build is thoroughly tested using our flow bench and race shop dynos. From two-strokes to four-strokes, race bikes to ATV's, almost any machine can benefit from Pro Circuit motor modifications.Please note if you cylinder & head is worn/damaged etc... Pro Circuit USA will not carry out any modifications and your cylinder & head will be returned back to us unmodified (and you will be charged just the shipping cost of the cylinder & head to the USA and return back to your home address).* You will need to send us your cylinder & head that you intend on having the modifications made too (please include name, address, contact number).* We will then send your cylinder & head to Pro Circuit USA for modification.* Your cylinder & head will then be returned back to us in our next delivery from the Pro Circuit USA, or if you require your cylinder & head and would not like to wait for one of our deliveries an additional £69.99 can be paid and we can arrange return shipment as soon as the parts are modified by Pro Circuit USA**All Pro Circuit cylinder & head modifications are sent to Pro Circuit USA so turn around time will be between 2-4 weeks.**If you require any further information or would like any questions answering please send us a message.
OUT OF STOCK
Ref: 2-STR CYL HEAD MD KT
KX85 short carburetor modification - increase throttle response, power top & bottom with more over rev, and choke removal.Carburetor boring - improves mid-to-top power, available for KX85/100 and CRF150R models only.KX85/100 governor spring - improves bottom end power.KX85/100 power valve (2-piece) - lowers exhaust port for huge gains in bottom end while maintaining peak horsepower.