Part Number: K651M865 Pro Tru Pistons / Sport Compact Series Set of 4 Pistons Rings & Pins Included Comp Height: 30 Comp Ratio: 9.25:1 Rod: 146 Dome Volume: -4 Bore: 86.5mm Stroke: 86 Wiseco Pistons - Pro Tru Sport Compact Series: World renowned for more info

Part Number: K651M86 Notes: Pro Tru Pistons / Sport Compact Series Set of 4 Pistons Rings & Pins Included Dome Volume: -4 Rod: 146 Comp Height: 30 Bore: 86mm Comp Ratio: 9.25:1 Stroke: 86 Wiseco Pistons - Pro Tru Sport Compact Series: World renowned more info