JE PISTONS 1260cc FORGED PISTON KIT fits GS1100 / GSX1100S KATANA

Massive displacement. Proven racing technology.

The JE Pistons 1260cc Forged Piston Kit is built for serious air-cooled Suzuki performance builds, transforming the GS1100 platform into a high-performance 1260cc machine using race-proven forged piston technology trusted across NASCAR, NHRA drag racing, IndyCar, and AMA competition.

Designed for exceptional strength, durability, and high-load performance under demanding riding and racing conditions.

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🔧 PRODUCT DETAILS

Brand: JE Pistons
Type: Forged Big Bore Piston Kit

Specifications:
✔️ Bore Size: 78mm
✔️ Oversize: +6mm over standard bore
✔️ Standard Bore Size: 72mm
✔️ Displacement: 1260cc
✔️ Compression Ratio: 10.5:1

Includes:
✔️ Forged Pistons
✔️ Piston Rings
✔️ Piston Pins
✔️ Head Gasket (except HD models)

✔️ High-strength forged construction
✔️ Lightweight race-inspired design
✔️ Precision-machined piston profile
✔️ Optimised combustion chamber design
✔️ Built for high-performance air-cooled engines

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🔥 WHY JE PISTONS?

JE Pistons has over 60 years of forged piston engineering experience and is trusted in some of the world’s most demanding racing categories.

Benefits include:
✔️ Exceptional high-temperature strength
✔️ Proven reliability under extreme load
✔️ Improved engine response and durability
✔️ Lightweight forged construction
✔️ Precision-machined combustion design
✔️ Suitable for high-performance street and drag engines

Nearly 100% of NASCAR teams and many NHRA Top Fuel teams rely on JE piston technology.

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⚙️ ADVANCED FORGED TECHNOLOGY

JE forged pistons are manufactured using A2618 aluminum alloy — an advanced material known for outstanding high-temperature strength.

Each piston is:
✔️ Hot forged
✔️ Heat treated
✔️ Precision-machined using specialised elliptical CNC technology

This allows tighter piston clearances, improved reliability, and better engine performance under operating temperatures.

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🏍️ FITS MODELS

SUZUKI GS1100 (1981–1983)
SUZUKI GSX1100S KATANA (1981–1983)

(Always confirm compatibility before purchase)

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⚠️ IMPORTANT NOTES

Professional engine machining and installation strongly recommended
Images are for reference only and may differ from actual product
Instruction manual, if included, will be in Japanese
Specifications may change from manufacturer without notice

Performance engine tuning may require additional supporting modifications.

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⚔️ FINAL WORD

1260cc • FORGED • RACE-PROVEN

Built for riders pushing the limits of classic air-cooled Suzuki performance.