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- Porsche 356A 1955-59
- Porsche 356B 1959-63
Forged 86mm Piston Set
Upgrade or rebuild your Porsche 356 engine with this OE Match JE Forged 86mm Piston Set, designed for Porsche 356A and 356B applications.
Manufactured from JE 2618 forged aluminium, these
performance pistons offer excellent strength and durability for demanding
engine builds. They feature a 22° piston angle, zero offset and additional
material beneath the piston crown to accommodate the valve pocket.
Fits:
- Porsche 356A 1955-59
- Porsche 356B 1959-63
Designed for a 1600cc engine with a 74mm stroke, the pistons feature a .155 dome height and 9.5:1 compression ratio, making them an excellent choice for compatible Porsche 356 performance and engine rebuild applications.
Why Choose JE 2618 Forged Pistons?
JE forged pistons are manufactured from 2618 aluminium alloy, a material widely used for high-performance piston applications due to its strength and resistance to demanding operating conditions.
Benefits include:
- JE 2618 forged aluminium construction
- High strength and durability
- 22° piston angle
- Zero piston offset
- Extra material beneath the crown for the valve pocket
- Suitable for performance and engine rebuild applications
When Should Pistons Be Replaced?
Piston replacement should be considered when:
- Compression is below specification
- Pistons or ring grooves are worn
- Piston crowns or skirts are damaged
- Increased engine performance is required
- The engine is undergoing a complete rebuild
Correctly specified forged pistons provide a strong foundation for a reliable performance engine build.
Key Specifications
- Piston diameter: 86mm
- Suitable for Porsche 356A / 356B
- Engine size: 1600cc
- Stroke: 74mm
- Pistons: JE 2618 forged
- Dome height: .155
- Compression ratio: 9.5:1
- Piston angle: 22°
- Zero offset
- Extra material under piston top for valve pocket
Kit Includes
- 4 JE forged pistons
- Complete set of piston rings
- 4 wrist pins
- Wrist pin clips
Porsche 356A / 356B Forged Pistons & Engine Rebuild Components
Choosing the correct pistons is essential when rebuilding or upgrading a Porsche 356 engine. Forged construction provides additional strength for demanding applications, while piston diameter, stroke, crown profile and compression ratio must be correctly matched to the engine specification.
The OE Match 0081186JEAP combines an 86mm bore with JE 2618 forged construction, a 22° piston angle, zero offset and 9.5:1 compression ratio, providing a high-quality solution for compatible Porsche 356A and 356B engine builds.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0081186JEAP
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