Piston set, Flat top 94x71mm. Porsche 914  ❭  VW9400T4EP

Piston Set, Flat Top 94x71mm.
Restore engine performance or support a high-performance engine rebuild with this OE Match Flat Top Piston Set, 94 x 71mm. Produced to OE-style specifications, this precision-engineered piston set is designed for compatible classic Porsche applications using the same engine platform where applicable. Manufactured from high-strength aluminium alloy, these flat top pistons provide exceptional durability, excellent heat dissipation, and precise dimensional accuracy for reliable long-term performance. The larger 94mm piston diameter is ideal for increased-capacity engine builds, performance upgrades, complete engine rebuilds, and concours-quality restoration projects.
This is a new set of Type 4 2.0 liter 94mm flat top slipper skirt performance pistons. These are high compression European style pistons. Perfect for adding some compression to your performance rebuild, or for those in the European market.

Fits:

Engine size: 2000cc
Stroke: 71 to 78
Pistons: Hypereutectic aluminum alloy
Compression Height: 35.2mm

Set includes: 4 pistons, 4 cylinders, 4 pins and a set of rings

The piston set converts combustion pressure into mechanical force by transferring energy through the connecting rods to the crankshaft. The flat top piston design promotes efficient combustion while maintaining the intended compression characteristics for compatible engine configurations. Over time, pistons can become worn, scuffed, cracked, or damaged by excessive heat, detonation, or lubrication failure, leading to reduced compression, increased oil consumption, piston noise, and poor engine performance. Replacing worn pistons restores engine efficiency, smooth operation, and dependable reliability.  

What This Product Does:

• Converts combustion pressure into crankshaft rotation.
• Restores engine compression and combustion efficiency.
• Supports smooth piston movement within the cylinders.
• Provides reliable sealing when used with new piston rings.
• Improves engine performance and reduces oil consumption.
• Replaces worn, damaged, or heat-affected pistons.
• 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.
• Piston slap or knocking noises.
• Loss of engine power or performance.
• Damaged piston crowns or cracked ring lands.
• Excessive cylinder blow-by.
• Damage identified during engine overhaul.

Why Replacement Matters:

• The pistons are among the most highly stressed components within the engine, converting combustion energy into mechanical power while maintaining compression and efficient combustion. Worn or damaged pistons can reduce engine performance, increase oil consumption, create excessive blow-by, and accelerate wear throughout the engine. Replacing pistons during a rebuild also helps ensure correct clearances and reliable long-term operation.
• Replacing worn pistons with this OE Match Flat Top Piston Set restores engine compression, improves combustion efficiency, reduces oil consumption, and supports dependable engine performance. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Flat Top Piston Set, 94 x 71mm provides reliable fit, performance, and durability for classic Porsche engine maintenance, performance upgrades, repairs, and restoration projects.