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Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head

Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head
Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head
Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head
Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head
Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head
Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head
Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head
Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head

Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head    Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head
Port 86-89 TRX250R Ported Cylinder Porting 66mm - 68mm Top End Rebuild Cool Head. Used OEM Honda cylinder with new sleeve installed and honed to piston (66mm up to 68mm). Full race port and polish. Pro Design billet cool head. Runs on pump or race gas. Drop in kit no machining required. Works on all'85-86 ATC250R and TRX250R models. PLEASE NOT THAT DEPENDING ON AVAILABILITY THE BORE SIZE MAY BE MOVED UP TO 68m IN 0.5mm INCREMENTS. Two-stroke engines get more power from porting than they do from increased size, and this kit combines both. Our porting is the best in the industry, guaranteed. When you have that AND the larger bore, plus increased compression from the Cool Head, you have a top end that will stomp the competition, and because it is a stock cylinder they will never know it's coming!

You can get 20+ hp more, depending on what else is done to the engine. DO YOU NEED TO HAVE THIS ITEM INSTALLED ON YOUR VEHICLE?

We are BPRATV, offering you the best in parts and service for over 20 years. PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE. Interchangeable part: We stock the same parts from different manufacturers so that when back orders occur, we have a part that is equal in quality and cost to send, preventing what can sometimes be long waits. This would be the only reason your order might vary slightly from the description, and the part that is subbed will always be comparable quality. If you only want a specific brand, just ask and we will let you know if it is out of stock and for how long.

Once a part has been installed or prepped for installation it is no longer eligible for return. Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person assembling and tuning the engine to make sure all the parts are correct and work properly. We ALWAYS STRONGLY recommend work be done by a qualified, experienced mechanic.

Please work with us and we will ALWAYS work with you. No other parts nor any labor are included.

We are BPRATV, and we offer a huge selection of Titanium fasteners. Once an item has been used or prepped for use with lubricants, sealant, etc. It is not eligible for return.


Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head    Port 86-89 TRX250R Ported Cylinder Porting 66mm 68mm Top End Rebuild Cool Head