Nitto Forged Pistons Nissan RB25DET Skyline (R33) / Stagea (WC34)

Nitto Forged Pistons - Nissan RB25DET - Skyline (R33) / Stagea (WC34)

A set of six forged pistons for the Nissan RB25DET as fitted to the R33 Skyline GTS-T and early (pre-NEO) Stagea. They suit a rebuilt standard-stroke bottom end, from a strong street car through to a drag or circuit build running serious boost.

Choose the bore size to suit your block. 86.5 mm is a 0.020" oversize with a +19 cc dome; 87.0 mm is a 0.040" oversize with a +18 cc dome. Have your engine builder measure the bores before ordering.

Every Nitto piston is produced by CP Carrillo in the USA to Nitto's own specification. They are forged from CP's low-silicon 2618 alloy in the Turbo HD forging, paired with a PVD-coated ring set for tight bore sealing under boost, and fitted with CP's 9310 wrist pins, which are Rockwell tested, case hardened and cryogenically treated.

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

Features

• Forged from low-silicon 2618 aluminium, Turbo HD forging
• Made by CP Carrillo to Nitto's specification
• PVD-coated ring set for strong bore sealing and low friction
• 9310 wrist pins (0.827" diameter, 2.500" long), 100% Rockwell tested, case hardened and cryo treated
• Forced double pin oiling to keep the wrist pin lubricated
• Anti-detonation grooves to help protect the top ring
• Accumulator grooves to reduce top ring flutter and improve ring seal

Kit Contents

• 6 x Nitto / CP Carrillo forged pistons
• 6 x PVD-coated ring sets
• 6 x 9310 wrist pins

Warranty

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

Pairs Well With

• Nitto H-Beam Connecting Rods - Nissan RB25DET / RB26DETT - Skyline / Skyline GT-R (R32 / R33 / R34) / Stagea (WC34)
• Nitto I-Beam Connecting Rods - Nissan RB25DET / RB26DETT - Skyline / Skyline GT-R (R32 / R33 / R34) / Stagea (WC34)
• Nitto DBS Metal Head Gasket - Nissan RB25DET - Skyline (R33) / Stagea (WC34)
• Nitto Full Gasket Kit - Nissan RB25DET - Skyline (R33) / Stagea (WC34)
• Nitto Oil Pump - Nissan RB25DET / RB26DETT / RB30 - Skyline / Skyline GT-R (R31–R34) / Stagea (WC34) / Commodore (VL)

Shop more: Nitto

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