Namura Technologies NA-20040-6 Piston Kit - 83.46mm - Oversized 1.50 engine-crankcase-components-crankshaft-assemblies 1974-1977 Yamaha YZ250

1974-1977 Yamaha YZ250

End Rise: 12in

2010-2011 Harley Davidson VRSCDX Night Rod Special

1978-1979 Yamaha XS400

1992-1993 Sea-Doo GTX

Namura Technologies NA-20040-6 Piston Kit - 83.46mm - Oversized 1.50 engine-crankcase-components-crankshaft-assemblies 1974-1977 Yamaha YZ250Bore: 83. 46mm Sizing: 1. 50mm Oversize MOS2 (Teflon Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures. Machined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and