Nitto Forged Pistons Mitsubishi 4G63 Lancer Evolution IV–IX (CN9A / CP9A / CT9A)

Nitto Forged Pistons - Mitsubishi 4G63 - Lancer Evolution IV–IX (CN9A / CP9A / CT9A)

These Nitto forged pistons replace the factory pistons in the 4G63T used in the Lancer Evolution IV to IX. They suit a 2.0L engine on the original 88 mm stroke and are built for boosted street, drag and circuit engines that need more strength than the stock parts.

Choose the bore size your engine builder will hone to: 85.5 mm (+0.020") or 86.0 mm (+0.040"). Both run a 22 mm (0.866") pin and a dished crown, -9 cc on the 85.5 mm piston and -10 cc on the 86.0 mm piston.

Nitto sets the specification and CP Carrillo in California forges and machines each piston from low-silicon 2618 aluminium using its Turbo HD forging. Every set includes a PVD-coated ring set that seals the bore well under boost while reducing friction against the cylinder wall, along with CP's 9310 wrist pins, which are hardness tested, case hardened and cryogenically treated. Forced double pin oiling, anti-detonation grooves and accumulator grooves are standard.

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

Features

• Designed by Nitto and manufactured by CP Carrillo
• Low-silicon 2618 aluminium, Turbo HD forging
• PVD-coated ring set for strong bore sealing under boost with less friction
• 9310 wrist pins: Rockwell tested, case hardened and cryogenically treated
• Forced double pin oiling to keep the wrist pin lubricated
• Anti-detonation and accumulator grooves to protect the top ring and improve ring seal

Kit Contents

• 4 x Nitto forged pistons (one set)
• PVD-coated ring set
• 9310 wrist pins

Warranty

Nitto parts are made for racing and off-road use. Inspect every part during assembly and blueprinting, and contact us before fitting if anything measures out of tolerance. Under Nitto's limited warranty a defective part will be repaired or replaced at Nitto's option, and any modification voids the warranty. Full terms: Nitto limited warranty (PDF).

Pairs Well With

• Nitto H-Beam Connecting Rods - Mitsubishi 4G63 - Lancer Evolution IV–IX (CN9A / CP9A / CT9A)
• Nitto I-Beam Connecting Rods - Mitsubishi 4G63 - Lancer Evolution IV–IX (CN9A / CP9A / CT9A)
• Nitto DBS Metal Head Gasket - Mitsubishi 4G63 - Lancer Evolution IV–IX (CN9A / CP9A / CT9A)
• Nitto Full Gasket Kit - Mitsubishi 4G63 - Lancer Evolution IV–IX (CN9A / CP9A / CT9A)
• Nitto Billet Crankshaft - Mitsubishi 4G63 - Lancer Evolution IV–IX (CN9A / CP9A / CT9A)

Shop more: Nitto

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