Wossner Porsche 996 & 911 Carrera 4 Forged Piston Kit Bore Size:96mm – K9472DA 84mm – K9431D100Stroke: 83

84mm – K9431D100Stroke: 83

87mm – K9291D100                                                      Stroke: 71

This Wossner Nissan Skyline GTR 2

5mm – K9439D100

75mm – K9480DA                                                            Stroke: 73

Wossner Porsche 996 & 911 Carrera 4 Forged Piston Kit Bore Size:96mm – K9472DA 84mm – K9431D100Stroke: 83This Wossner Porsche 996 & 911 Carrera 4 Forged Piston Kit includes the following components: 6x Wossner Forged Pistons Piston Rings Pins and Clips Specs: Build years: 1997 2001 Engine Code: M96. 01 04Bore Size: 96. 5mm K9472D050, 96mm K9472DA, 97mm K9472D100 Stroke: 78mmCompression Height: 32. 3mmOEM Comp Ratio: 11. 3: 1Number of Rings: 3Clip Part Number: 6, C22x1 Pin Part Number: WP098 Cylinders: 6 Valves Per Cylinder: 4 These pistons will fit both