Wiseco K643M96 Forged Dish Pistons for 2008-14 Nissan / Infiniti VQ37 3.7L V6

Vehicle Fitment

• 2009-2014 Nissan 370Z / 2009-2013 Infiniti G37 (VQ37VHR 3.7 L V6)

Features

• Forged from 2618 aluminum alloy for maximum strength
• ArmorGlide® skirt coating to reduce friction and improve durability
• Dished crown (-15.5 cc) for a balanced 9.0:1 compression ratio
• Strutted forging structure for high rigidity under load
• Precision machined ring grooves for optimal ring sealing
• Forced-pin oiling for improved lubrication of the wrist pin area
• Includes high-performance nitrided / Napier steel ring set
• Designed for heavy-duty, high-revving naturally aspirated V6 engines

Specifications

• Bore: 96.00 mm / 3.780 in
• Stroke: 86.00 mm / 3.385 in
• Compression Height: ~29.95 mm / 1.198 in
• Dome / Dish Volume: -15.5 cc
• Compression Ratio: ~9.0:1
• Wrist Pin Diameter: 22 mm
• Ring Set: 9600XX steel
• Approximate Weight per Piston: 372 g

Included Components

• 6x Forged pistons
• 6x Wrist pins
• 6x Retaining clips
• 1x Ring set (9600XX)

Product Description

The Wiseco K643M96 is a high-performance, professional-series piston set designed for the VQ37VHR 3.7 L V6 engine found in the Nissan 370Z and Infiniti G37. Forged from aerospace-grade 2618 aluminum and featuring a strutted design, these pistons deliver outstanding strength and durability under high RPM and high-load racing conditions. The ArmorGlide® skirt coating helps reduce friction, minimize wear, and provide smoother operation.

With a dished crown of -15.5 cc and a 9.0:1 compression ratio, these pistons are well-suited to high-rev, naturally aspirated V6 builds. The precision machined ring grooves and forced-pin oiling system ensure optimal sealing and lubrication, while the included 9600XX steel ring set enhances performance and longevity.

Installation requires standard practices: check piston-to-wall clearance and verify deck height. These pistons are ideal for performance builds, track engines, or any high-stress VQ37 build where strength, reliability, and consistent power delivery are critical.