ZRP 1400HD forged pistons by Wiseco are intended for Subaru EJ20 engines in the WRX-STi model. The specified compression ratio is 8.5:1.
The pistons are made from 2618 alloy with low silicon content and high thermal expansion. Supplier data lists versions with diameters of 92.00 mm and 92.50 mm.
- Engine: 2.0L EJ20; the 2.0L EJ205 designation is also listed
- Compression ratio: 8.5:1
- Alloy: 2618 Low-Silicon / High-Expansion
- Piston diameter: 92.00 mm or 92.50 mm
- Product code: 23301-920-P
Suitable for: Subaru Impreza I (GC/GF) / II (GD/GG) / III (GH/GR).
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