Nitto Forged Stroker Pistons Subaru EJ20 WRX / STI (GC / GD) / Forester (SF / SG) / Liberty GT (BE / BH)

Nitto Forged Stroker Pistons - Subaru EJ20 - WRX / STI (GC / GD) / Forester (SF / SG) / Liberty GT (BE / BH)

A set of four forged pistons for building an EJ20 out to 2.2 litres with a 79 mm stroker crank. They suit turbo EJ20 engines from the Impreza WRX and STI, Forester GT and Liberty GT, and are aimed at street, drag and circuit builds that need more capacity and response.

One size is listed: a 92.5 mm bore (+0.020") with an 11.5 cc dish, designed for a 130.5 mm connecting rod. Check that your block will clean up at this oversize before ordering.

Nitto pistons are produced by CP Carrillo in California to Nitto's own specification. They are machined from CP's low-silicon 2618 aluminium alloy, and each set comes with a PVD ring set and CP's 9310 steel wrist pins, which are case hardened, cryogenically treated and Rockwell tested.

Note: Installation by a professional is recommended. Engine internals must be measured and set up by a qualified engine builder.

Features

• 2.2L stroker design for the EJ20, 92.5 mm (+0.020") bore
• -11.5 cc dish, suits a 130.5 mm rod
• PVD coated ring set for strong bore sealing under boost
• 9310 wrist pins: case hardened, cryogenically treated and 100% Rockwell tested
• Forced double pin oiling to keep the wrist pin lubricated
• Anti-detonation grooves to protect the top ring under high load
• Accumulator grooves to reduce top ring flutter and improve ring seal

Kit Contents

• 4 x Nitto/CP forged pistons
• PVD coated ring set
• 9310 wrist pins

Warranty

Nitto parts are built for racing and off-road use. Inspect every part during assembly and blueprinting, and contact us before fitting if anything measures outside tolerance. Nitto will repair or replace a faulty part at its option, and any modification to a part voids the warranty. Full terms: Nitto limited warranty (PDF).

Pairs Well With

• Nitto Billet Crankshaft - Subaru EJ20 / EJ25 - WRX / STI (GC / GD / GE / GH / GR / GV / VA) / Forester (SF / SG / SH) / Liberty GT (BE / BH / BL / BP)
• Nitto I-Beam Connecting Rods - Subaru EJ20 / EJ25 - WRX / STI (GC / GD / GE / GH / GR / GV / VA) / Forester (SF / SG / SH) / Liberty GT (BE / BH / BL / BP)
• Nitto H-Beam Connecting Rods - Subaru EJ20 / EJ25 - WRX / STI (GC / GD / GE / GH / GR / GV / VA) / Forester (SF / SG / SH) / Liberty GT (BE / BH / BL / BP)

Shop more: Nitto

Need help choosing parts? Contact our team at sales@chicaneaustralia.com.au.