£1,337.74
Wössner forged piston and PEC H-beam steel connecting rod package for Cosworth YB 17cc.
The current catalogue kit includes ARP 2000 series bolts and ARP assembly lubricant.
Bore size: Please confirm the required bore size before ordering. The kit reference does not identify an individual piston size.
| Engine Code | YBB , YBD , YBG , YBJ , YBP , YBT |
|---|---|
| Model years from | 1985 |
| Model years to | 1996 |
| Bore Size | 91.25mm – K9027D045 , 91.5mm – K9027D070 , 91.75mm – K9027D095 , 91mm – K9027D020 , 92.5mm – K9027D170 , 92mm – K9027D120 |
| Stroke | 77mm |
| Compression Height | 40.75mm |
| Number of Rings | 3 |
| Piston pin diameter | 24mm |
| Number of cylinders | 4 |
| Valves Per Cylinder | 4 |
| Connecting rod length (centre to centre) | 128.5mm |
| Engine Code | YBB , YBD , YBG , YBJ , YBP , YBT |
|---|---|
| Model years from | 1985 |
| Model years to | 1996 |
| Connecting rod length (centre to centre) | 128.5mm |
| Big end diameter | 55mm |
| Big end width | 25.80mm |
| Small end diameter | 24mm |
| Small end width | 25.80mm |
| Bolt thread | 3/8" |
| Piston reference | Piston diameter | Compression ratio |
|---|---|---|
| K9027D020 | 90.9mm | 8:1 |
| K9027D045 | 91.15mm | 8.04:1 |
| K9027D070 | 91.4mm | 8.08:1 |
| K9027D095 | 91.65mm | 8.12:1 |
| K9027D120 | 91.9mm | 8.15:1 |
| K9027D170 | 92.4mm | 8.23:1 |
Piston diameter and cylinder bore are different measurements. Confirm the correct size and engine specification before ordering.