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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
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
It fits 356 Pre A Porsches 1948-55 with the early 2 piece Case.
The Cylinders are cast iron with Graphite Coated Hypereutectic pistons with valve pockets, and the 22mm Pin. This kit requires no machine work, when installing in a factory Porsche case & heads
It is also commonly used as a big bore supplement for the early 36 Horse VW Engine, but requires a lot of machine work.
Engine size: 1500cc
Stroke: 74mm
Cylinders: Cast Iron.
Pistons: Hypereutectic
Dome CC: 0
Piston Angle: Flat top
Kit includes:4 Cylinders, 4 Pistons, A set of Piston Rings, and 4 wrist pins and clips.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0081180S
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
Restore engine performance and reliability with this OE Match Cylinder Kit, VW 80mm. Produced to OE-style specifications, this complete cylinder kit is designed for compatible classic Volkswagen air-cooled engines and is suitable for Porsche applications using the same engine platform where applicable. Manufactured from high-quality cast materials with precision-machined cylinder bores, the kit is engineered to deliver excellent durability, efficient heat dissipation, and consistent sealing. It is ideal for engine rebuilds, maintenance, performance restoration, and classic vehicle refurbishment projects.
Fits:
- Porsche 356 1950-55
The cylinder kit forms the combustion chamber walls in conjunction with the pistons and piston rings, providing the sealed environment required for efficient compression and combustion. Over time, continuous piston movement, heat cycles, and normal engine wear can cause the cylinder bores to become worn, tapered, scored, or out of round. Replacing worn cylinders restores engine compression, improves oil control, and helps return the engine to smooth, efficient operation.
What This Product Does:
- Provides precision-machined cylinder bores for the pistons.
- Restores engine compression and combustion efficiency.
- Supports correct piston and piston ring operation.
- Improves oil control and reduces blow-by.
- Dissipates engine heat effectively.
- Replaces worn, scored, or damaged cylinders.
- Provides an OE-style fit for straightforward engine rebuilding.
Symptoms Of Wear Or Failure:
- Low engine compression.
- Excessive oil consumption.
- Blue exhaust smoke caused by oil burning.
- Loss of engine power or performance.
- Excessive crankcase blow-by.
- Scored, worn, or tapered cylinder bores.
- Piston slap or excessive engine noise.
- Damage identified during engine overhaul.
Why Replacement Matters:
- The cylinders are fundamental to engine performance, providing the precision sealing surfaces required for efficient combustion and reliable piston movement. As cylinder bores wear, compression is reduced, oil consumption increases, and engine performance deteriorates. Continued operation with worn cylinders can accelerate wear of pistons, rings, and other internal engine components.
- Replacing worn cylinders with this OE Match 80mm Cylinder Kit restores compression, improves engine efficiency, reduces oil consumption, and supports long-term engine reliability. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Cylinder Kit provides reliable fit, performance, and durability for classic Volkswagen and compatible Porsche engine maintenance, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0081180L
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Restore or upgrade your engine with this OE Match Biral VW 82.5mm Cylinder Kit. Produced to OE-style specifications, this premium Biral cylinder kit is designed for compatible classic Volkswagen air-cooled engines and Porsche applications using the same engine platform where applicable. Featuring cast iron cylinder liners bonded to aluminium cooling fins, Biral cylinders combine the excellent wear resistance of cast iron with the superior heat dissipation of aluminium. Manufactured to precise tolerances, the kit delivers outstanding durability, efficient cooling, and consistent engine performance, making it ideal for engine rebuilds, performance upgrades, and concours-quality restoration projects.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
The cylinder kit forms the combustion chamber walls in conjunction with the pistons and piston rings, providing the precision sealing surfaces required for efficient compression and combustion. The Biral construction offers improved thermal management compared with conventional cast iron cylinders, helping to maintain stable operating temperatures under demanding conditions. Over time, cylinder bores can become worn, tapered, scored, or distorted due to heat and continual piston movement, resulting in reduced compression and increased oil consumption. Replacing worn cylinders restores engine efficiency and long-term reliability.
What This Product Does:
- Provides precision-machined cylinder bores for the pistons.
- Restores engine compression and combustion efficiency.
- Combines cast iron wear resistance with aluminium cooling.
- Improves heat dissipation for stable engine temperatures.
- Supports correct piston and piston ring operation.
- Replaces worn, scored, or damaged cylinders.
- Provides an OE-style fit for straightforward engine rebuilding.
Symptoms Of Wear Or Failure:
- Low engine compression.
- Excessive oil consumption.
- Blue exhaust smoke caused by oil burning.
- Loss of engine power or performance.
- Excessive crankcase blow-by.
- Scored, worn, or tapered cylinder bores.
- Piston slap or abnormal engine noise.
- Damage identified during engine overhaul.
Why Replacement Matters:
- The cylinders are fundamental to engine performance, providing the precision-machined surfaces required for effective piston sealing and efficient combustion. As cylinder bores wear, engine compression decreases, oil consumption increases, and overall performance suffers. Biral cylinders offer the additional benefit of superior cooling performance, helping to reduce operating temperatures while maintaining excellent wear characteristics.
- Replacing worn cylinders with this OE Match Biral 82.5mm Cylinder Kit restores engine compression, improves cooling efficiency, reduces oil consumption, and supports long-term engine reliability. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Biral Cylinder Kit provides reliable fit, performance, and durability for classic Volkswagen and compatible Porsche engine maintenance, performance upgrades, repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0081182BL
The product you are viewing cross references to these numbers