How many HP does a Polaris 660 big bore kit make?
The 660 kit makes 145-149 hp when paired with our pipe mod, v force reeds, and a power commander. We bore the cylinders out, port them, re-nikasil the plating, modify the exhaust valves, and machine the head. This kit is extremely reliable, powerful, and fun! Warning: Last items in stock!
What causes a Polaris snowmobile engine to fail?
The MTNTK fix kit addresses piston failure that is common with some Polaris engines. The failure is caused by the piston clearance in the cylinder being ill-fitting and loose, allowing the pistons to rock in the cylinder bore.
What are the gaskets on a Polaris piston?
NOTE: ALL pistons come with Rings, Wrist Pin, and Circlips! NOTE: RKT Top end gasket kit is comprised of the Base Gasket, Y -Pipe Gasket, Exhaust Valve Gaskets (Non-HO ONLY), and Inner Compression O-rings. These gaskets are not part of the piston ONLY kit but are available in the options.
Why is the piston on my Polaris engine not working?
FINDINGS: We find that the OEM Polaris Piston will NOT hold its form after a very short time of running. We have found it common to see the piston to cylinder wall clearance DOUBLE in less than 1000 miles.. THIS is the #1 reason behind these cylinder failures associated with the Polaris Engine!!
The 660 kit makes 145-149 hp when paired with our pipe mod, v force reeds, and a power commander. We bore the cylinders out, port them, re-nikasil the plating, modify the exhaust valves, and machine the head. This kit is extremely reliable, powerful, and fun! Warning: Last items in stock!
Is the lower cylinder skirt of Polaris prone to cracking?
2) The 2008-2009 CFI-4 engines had a VERY thin lower cylinder skirt that was prone to cracking especially once the OEM piston gets lose in the bore. In 2010 Polaris thickened up this skirt. Polaris thickened up the skirt, again, for 2011-12 CFI-2 Engines. ALL of the 2008-2012 800 Engines were prone to lower cylinder skirt cracking!
NOTE: ALL pistons come with Rings, Wrist Pin, and Circlips! NOTE: RKT Top end gasket kit is comprised of the Base Gasket, Y -Pipe Gasket, Exhaust Valve Gaskets (Non-HO ONLY), and Inner Compression O-rings. These gaskets are not part of the piston ONLY kit but are available in the options.
How much horsepower does a Polaris 600 have?
The Polaris 600 is a heck of a motor, and it has a ton of potential! The 660 kit makes 145-149 hp when paired with our pipe mod, v force reeds, and a power commander. We bore the cylinders out, port them, re-nikasil the plating, modify the exhaust valves, and machine the head. This kit is extremely reliable, powerful, and fun!