BUILT TO YOUR SPECIFICATIONS
A custom piston starts with understanding the application. Share an engine model, a sample, or a design brief. We work through the geometry and requirements with you.
You don’t need a complete drawing to begin the conversation.
Discover custom pistonsTHE PRODUCT, UP CLOSE
®PRECISION CUSTOM
Precision Custom: a dedicated brand for demanding piston development projects, with its own design and project space.
DESIGN MEETS MANUFACTURING
See the work behind the piston: machining, production and dimensional inspection. A closer look at how a design takes shape.
Explore our capabilitiesINSIDE JND
A closer look at machining, production and inspection.
ENGINEERING, MADE VISIBLE
Crown geometry, pin location and ring layout are considered together with the application.
Explore this detail ↗2618 forged aluminium and selected 4032 options. FEA-supported designs balance wall thickness, mass and stress distribution.
Explore this detail ↗Skirt coating examples and machined finishes, selected against the project brief.
Explore this detail ↗MATERIALS & ENGINEERING
A dense forged structure designed for higher combustion pressures, temperatures and engine speeds. Selected products use 4032 or 2618 aluminium, with the alloy chosen for the application.
Selected designs use finite element analysis to optimise stress distribution. Forging supports thinner-wall, weight-conscious designs while retaining the strength required by the application.
From raw-material forging to CNC finishing, process control and inspection focus on ring-groove quality, dimensional tolerances and consistency.
Specialist projects can specify high-strength aluminium, steel or titanium-alloy solutions for the relevant piston or component. Material and component scope are defined for the application.
PRECISION & VALIDATION
Piston weight matching is controlled within ±1 g for specified matched sets. Precision tolerances and dimensional consistency are part of the agreed inspection requirements.
JND brings OEM experience and OEM-level validation practices into performance piston development, supported by extensive R&D and motorsport resources.
YOUR NEXT PROJECT
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