£1,337.74
Wössner forged piston and PEC H-beam steel connecting rod package for Cosworth YB High Comp.
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 | 1995 |
| Bore Size | 91.25mm , 91.5mm , 91mm , 92mm , 93mm |
| Stroke | 77mm |
| Compression Height | 40.5mm |
| 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 |
|---|---|---|
| K9217D020 | 90.9mm | 12.5:1 |
| K9217D045 | 91.15mm | 12.56:1 |
| K9217D070 | 91.4mm | 12.62:1 |
| K9217D120 | 91.9mm | 12.75:1 |
| K9217D220 | 92.9mm | 13.01:1 |
Piston diameter and cylinder bore are different measurements. Confirm the correct size and engine specification before ordering.