Engines and Components› Pistons and Piston Rings

Manley Performance

Manley Nissan GT-R 3.8 95.5mm Grade 1 Bore -1.5cc 9.8:1 Comp Piston 6.500in Rod L (Single Piston)

$291.57

SKU: M004 633GR1-1

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Description

The Manley Performance 633GR1-1 is a flat top piston designed for the Nissan GT-R VR38DETT 4.06L engine. It features a 95.5mm bore size, 94.4mm stroke, and a compression ratio of 9.8:1. The piston is constructed from 2618 forged material and includes a pressure balance groove for quiet startups. A premium .180" wall Chrome Moly pin, steel top ring set, and round wire locks are also included.

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Specifications

BrandManley Performance
Part NumberM004 633GR1-1

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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