Manley Performance Pistons for the Nissan GT‑R R35 VR38DETT are engineered for high‑performance and high‑boost engine builds where strength, precision, and reliability are critical. Designed specifically for the factory 95.5mm bore, these pistons are graded to match the OEM cylinder bore sizing used by Nissan, ensuring optimal piston‑to‑wall clearance and quiet, reliable operation.

Manufactured from high‑strength forged aluminum and paired with premium wrist pin options, Manley pistons are trusted worldwide in street, track, and competition GT‑R builds ranging from lightly modified engines to extreme horsepower applications.

Key Features

• Designed specifically for Nissan GT‑R R35 VR38DETT engines
• Standard 95.5mm bore size
• Factory bore graded to suit OEM cylinder sizing
• Forged aluminum piston construction
• Optimized for high boost and high cylinder pressures
• Precision-machined for consistent weight and balance
• Ideal for performance street, track, and race builds

Available Bore Grades

To match Nissan’s factory bore grading system, Manley pistons are available in three grades. Selecting the correct grade ensures proper piston‑to‑wall clearance when used in standard bore blocks.

• Grade 1 (GR1) – Smallest factory bore tolerance
• Grade 2 (GR2) – Mid factory bore tolerance
• Grade 3 (GR3) – Largest factory bore tolerance

Wrist Pin Options

Manley offers two wrist pin material options to suit different power levels and intended use:

• Premium Chrome Moly Wrist Pins
  A high-quality, lightweight option suitable for most performance street and track builds. Provides excellent durability and reliability for moderate to high horsepower applications.
• Extreme 9310 Alloy Steel Wrist Pins
  Designed for extreme horsepower and competition engines, these pins offer superior strength and fatigue resistance under high boost and high RPM conditions.

Available Part Numbers

• 633GR1-1 – Grade 1, Chrome Moly Wrist Pins
• 633EGR1-1 – Grade 1, Extreme 9310 Alloy Steel Wrist Pins
• 633GR2-1 – Grade 2, Chrome Moly Wrist Pins
• 633EGR2-1 – Grade 2, Extreme 9310 Alloy Steel Wrist Pins
• 633GR3-1 – Grade 3, Chrome Moly Wrist Pins
• 633EGR3-1 – Grade 3, Extreme 9310 Alloy Steel Wrist Pins

When Are Manley Pistons the Right Choice?

• Rebuilding a standard bore VR38DETT engine
• High-boost street or track GT‑R builds
• Engines requiring factory bore grading compatibility
• Builders seeking proven reliability at elevated power levels
• Competition engines requiring stronger wrist pin options

Application

• Nissan GT‑R R35
• Engine: VR38DETT
• Bore Size: 95.5mm (Standard)

Manley Performance Pistons provide a reliable, precision‑engineered solution for VR38DETT engine builds, offering the flexibility to choose the correct bore grade and wrist pin strength to match your power goals.