Nickies Cylinders 105.029 mm with 12.5:1 JE Piston Set, 911 3.6

The largest bore in the range at 105.029 mm, paired with 12.5:1 forged pistons — a race compression ratio, not a road one.

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Published fitment
964 · See fitment notes
993 · See fitment notes
Recorded availability
In production. Confirm with the supplier.
Recorded price
No published price recorded

View supplier page ↗

Reported by a secondary source. Sources last accessed ; fitment is not independently verified.

Engine InternalsIn productionReported by a secondary source

Manufacturing

ManufacturerLN Engineering
Origin🇺🇸 United States
Manufactured here
LN Engineering, USA.
ProcessCNC Machined
Additively manufacturedNo
Material6061-T6 Aluminium, Nickel Silicon Carbide plating
Notes964 and 993 cylinders use the late-style sealing configuration and have no o-ring provision in the case, so sealant is required. Early 964 heads must be updated per the factory bulletin before fitting.

Published figures

BasisPublished by the manufacturer; not independently verified.
Notes12.5:1 compression — requires appropriate fuel and calibration, and is not a bolt-on for a road car.

Fitment

964All models
993All models

Sources

  1. Porsche 911 3.6 105.029mm Nickies inc. 12.5:1 JE Piston set — LN Engineering, accessed 2026-08-17