Parts Unlimited Piston Kit 77.00 Mm 171R Hirth Engine For Arctic Cat Snowmobiles 1969-1971 | Polaris Charger / Colt / Mustang 1969-1970 Brand_Dk Custom Products high-viscosity index maintains film strength

high-viscosity index maintains film strength

Does not fit helmets with older SAL or SAI shield type

Made from CNC-machined billet aluminum

Length 2' Units Pair Riding Style ATV Type Whip Product Name Light Rod Riding Style UTV

Parts Unlimited Piston Kit 77.00 Mm 171R Hirth Engine For Arctic Cat Snowmobiles 1969-1971 | Polaris Charger / Colt / Mustang 1969-1970 Brand_Dk Custom Products high-viscosity index maintains film strengthFeatures High performance, cast pistons closely match original equipment Engineered for the best possible heat transfer from combustion chamber to cylinder walls Rings are replacement for one piston All pistons are priced with ring(s), wrist pins and circlips Specs Bore Size 77. 00 mm Bore Oversize Standard Units Each Piston Material Aluminum Bore Oversize Standard Product Name Piston Kit Stroke Length 68. 00 mm Displacement 634 cc Riding Style Snow