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Technical data — YB TURBO
| Displacement | 1993cc |
| Production Years | 1985–1992 |
| Block Material | Cast Iron |
| Cylinder Coating | None |
| Block Height (mm) | — |
| Bore Spacing (mm) | — |
| Bore (mm) | 90.8 (OEM); DP overbores to 92 |
| Stroke (mm) | 77.00 (OEM) / 82 / 84 (stroker options) |
| Rod Length (mm) | 128.5 (OEM) / 133.5 / 136 / 138 (stroker rods) |
| Wrist Pin Diameter (mm) | 22–24 |
| Rod Big End Bore (mm) | 55mm |
| Rod Big End Thickness (mm) | 25.75mm |
| Rod Small End Thickness (mm) | — |
| Cylinders | 4 |
| CH (mm) | varies 29.8–40.8 by config — see list |
| Compression Ratio | 8.0–8.2 (OEM factory, Sierra/Escort RS Cosworth) |
| Combustion Chamber (cc) | — |
| Skirt Coating Required (all Series) | — |
| Crown Coating Required (all Series) | — |
| Engine Code(s) | — |
| Engine Type(s) | — |