Bore: 83.00mm (stock 82.50mm) Stroke: 92.80mm Compression height: 29.6mm Compression ratio: 9.6 Pin: 23mm Rings: 1.20x1.50x2.00mm Hard Anodized Top Ring Groove For Extreme Duty Applications Crown volume: -7.1cc Weight: 318g Alloy: M142P Clearance guide: Measuring point .250 Min .0010 Max .0018 Package: 4 pistons with rings and pins Warning: check for...

Cyl.Bore: 82.50mm is STD Compression Height: 29.8mm Length: 56.0mm Recess Depth: +5.6/-4.7mm Recess Diameter: 60.0mm Bolt d.: 21.0mm Bolt Length: 53.0mm Info: Alfin and with oil gallery, skirt MoS2 treated, fits tapered connecting rod Piston rings: 1.20x1.50x2.00mm

Cyl.Bore: 82.50mm is STD Compression Height: 29.56mm Length: 53.8mm Recess Depth: +3.7/-3.8mm Bolt d.: 23.0mm Bolt Length: 51.0mm Info: Alfin, skirt MOS2 treated, fits tapered connecting rod Piston rings: 1.20x1.20x2.00mm

Cyl.Bore: 82.50mm is STD Compression Height: 29.56mm Length: 53.8mm Recess Depth: +3.7/-3.8mm Bolt d.: 23.0mm Bolt Length: 51.0mm Info: Alfin, skirt MOS2 treated, fits tapered connecting rod Piston rings: 1.20x1.20x2.00mm

Cyl.Bore: 77.00mm is STD Compression Height: 28.6mm Length: 50.2mm Recess Depth: +1.7/-3.5mm Bolt d.: 20.0mm Bolt Length: 48.0mm Info: Top and 2nd ring lands anodized, skirt MoS2 treated, fits tapered connecting rod Piston rings: 1.20x1.50x2.00mm

Cyl.Bore: 77.00mm is STD Compression Height: 28.5mm Length: 51.2mm Recess Depth: +2.7/-3.5mm Bolt d.: 20.0mm Bolt Length: 48.0mm Info: top and 2nd ring lands anodized, skirt MoS2 treated, fits tapered connecting rod Piston rings: 1.20x1.50x2.00mm

Cyl.Bore: 77.00mm is STD Compression Height: 28.5mm Length: 51.2mm Recess Depth: +2.7/-3.5mm Bolt d.: 20.0mm Bolt Length: 48.0mm Info: top and 2nd ring lands anodized, skirt MoS2 treated, fits tapered connecting rod Piston rings: 1.20x1.50x2.00mm

Cyl.Bore: 84.00mm is STD Compression Height: 47.0mm Length: 73.0mm Recess Depth: -4.6/-15.2mm Recess Diameter: 47.5mm Bolt d.: 32.0mm Bolt Length: 64.0mm Info: Alfin and with oil gallery, skirt MoS2 treated, fits tapered connecting rod Piston rings: 1.75x1.75x2.00mm

Cyl.Bore: 84.00mm is STD Compression Height: 45.0mm Length: 71.0mm Recess Depth: -4.7/-14.5mm Bolt d.: 30.0mm Bolt Length: 68.0mm Info: Alfin and with oil gallery, skirt MoS2 treated, fits tapered connecting rod Piston rings: 2.50x2.00x2.00mm

Cyl.Bore: 84.00mm is STD Compression Height: 47.0mm Length: 73.0mm Recess Depth: -4.7/-14.5mm Recess Diameter: 47.5mm Bolt d.: 32.0mm Bolt Length: 64.0mm Info: Alfin and with oil gallery, skirt MoS2 treated, fits tapered connecting rod Piston rings: 1.75x1.75x2.00mm

Cyl.Bore: 84.00mm is STD Compression Height: 33.15mm Length: 52.15mm Recess Depth: +0.75mm Bolt d.: 22.0mm Bolt Length: 54.0mm Info: top and 2nd ring lands anodized, skirt MoS2 treated, fits tapered connecting rod Piston rings: 1.20x1.50x2.00mm

Cyl.Bore: 83.00mm is STD Compression Height: 45.7mm Length: 71.7mm Recess Depth: -4.0/-14.7mm Bolt d.: 30.0mm Bolt Length: 66.0mm Info: alfin and with oil gallery, skirt MoS2 treated, for cyl 1/2/3 only Piston rings: 2.00x2.00x2.00mm