100% ATV bolt-on kit requiring no additional machining. This kit can be installed with the engine still in the frame and uses your stock heads. Head work and cams are available. This kit is a perfect option for top end rebuilds or a low cost performance upgrade. These do not have tensioner holes in the cylinders. So if using to replace an 850 you will need to have tensioner holes machined in your stock heads or buy our g2 800 maverick heads. Our 860cc kits can be installed on Can-am ATV 650cc thru 850cc Outlanders and Renegades. Fuel/Air tuning may be required after kit install. ⚠️**This kit uses cast pistons and is not recommended for nitrous or other power adders. For 850 you need to have tensioner holes machine in your stock head or switch to g2 800 mav heads. **⚠️ This kit can also go on a 570 just make sure you do your measurements to find out how thick of base gaskets you need (most of the time double stack 2 stock base gaskets). You can double stack stock base gaskets. This is not an "upgrade" for the 850. It is essentially a replacement. Comes with head and base gaskets! PLEASE SPECIFY WHETHER YOUR MACHINE HAS MAVERICK HEADS! FOR VALVE RELIEF OR STANDARD KIT WILL BE SENT!
