Wiseco Forged Series Piston Kit - 394M08650 Yamaha Dirt Bikes 1977-1978 Brand Type Organic Base Units Set

Type Organic Base Units Set of 2

Style P-85 Clutch Type Primary Clutch Cover Units Each Product Name Clutch Bushing Riding Style Snow

Units Kit Type Wheel Mounting Position Front Left Riding Style ATV Product Name Bearing Mounting Position Front Right

stainless steel housing

Wiseco Forged Series Piston Kit - 394M08650 Yamaha Dirt Bikes 1977-1978 Brand Type Organic Base Units SetFeatures Forged from high silicon alloy for maximum strength and dependability Wiseco offers a complete range of popular piston models and years for both trail and racing applications Kit includes piston, rings, circlips and wrist pin Specs Displacement 397 cc Bore Size 86. 50 mm Bore Oversize +1,50 mm Bore Oversize +1. 50 mm Riding Style Off Road Units Kit Piston Material 4032 Aluminum Alloy Engine Type 2 Stroke Piston Diameter 86. 42 mm Stroke