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Cylinder kit, Biral big bore VW 83.5mm. Porsche 356/912 ❭ 0081183BL
- 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 engine performance while increasing displacement with this OE Match Biral Big Bore VW 83.5mm Cylinder Kit. Produced to OE-style specifications, this premium Big Bore Biral cylinder kit is designed for compatible Porsche applications using the same engine platform where applicable. Featuring cast iron cylinder liners bonded to aluminium cooling fins, the Biral construction combines exceptional wear resistance with superior heat dissipation. The 83.5mm big bore design increases engine capacity while maintaining excellent thermal stability, making this kit ideal for performance engine builds, engine rebuilds, 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, providing the precision-machined surfaces required for the pistons and piston rings to create efficient compression and combustion. Compared with conventional cast iron cylinders, Biral cylinders offer significantly improved cooling characteristics, while the larger 83.5mm bore increases engine displacement for enhanced torque and power potential. Over time, cylinder bores can become worn, scored, tapered, or distorted through continual piston movement and repeated heat cycles, leading to reduced compression, increased oil consumption, and declining engine performance. Replacing worn cylinders restores engine efficiency while benefiting from the enhanced cooling and increased capacity of the Big Bore design.
What This Product Does:
- Provides precision-machined cylinder bores for the pistons.
- Increases engine displacement with an 83.5mm bore.
- Restores engine compression and combustion efficiency.
- Combines cast iron wear resistance with aluminium cooling.
- Improves heat dissipation for stable operating 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 essential for maintaining engine compression, efficient combustion, and reliable piston movement. As cylinder bores wear, engine performance declines, oil consumption increases, and internal engine wear accelerates. The Biral construction provides excellent heat dissipation while maintaining durable cast iron running surfaces, and the Big Bore 83.5mm design increases engine capacity to deliver improved torque and performance.
- Replacing worn cylinders with this OE Match Biral Big Bore 83.5mm Cylinder Kit restores compression, improves cooling efficiency, increases engine displacement, and supports long-term engine reliability. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Biral Big Bore 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.
0081183BL
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
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