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- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Aluminium Engine Baffle Kit – 8 Piece
Restore the efficiency of your air-cooled engine with this Aluminium Engine Baffle Kit, comprising 8 precision-manufactured
aluminium baffle plates. This complete kit helps ensure cooling air is directed exactly
where Porsche intended, protecting your engine from excessive operating
temperatures.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Unlike a water-cooled engine, the classic Porsche flat-six relies entirely on carefully managed airflow generated by the engine cooling fan. The aluminium baffle plates fit between the cylinders and cylinder heads, sealing critical gaps and directing cooling air through the cooling fins rather than allowing it to escape around the engine.
Without these baffles in place, cooling efficiency is significantly reduced, allowing hot spots to develop around the cylinders and heads. This can lead to increased engine temperatures, reduced reliability and accelerated engine wear.
Manufactured to OE Match standards from lightweight, corrosion-resistant aluminium, this 8-piece kit offers factory-style fitment and is an essential component during engine rebuilds, restorations or whenever the engine is stripped for maintenance.
What Do Engine Baffle Plates Do?
Engine baffle plates are a critical part of the Porsche air-cooled engine's cooling system. Installed between the cylinders and beneath the cylinder heads, they ensure the airflow produced by the cooling fan is forced through the cylinder and head cooling fins.
Their primary functions include:
- Directing cooling air through the cylinders and heads
- Preventing cooling air from escaping through unwanted gaps
- Promoting even engine temperatures
- Reducing the risk of localised overheating
- Improving cooling efficiency throughout the engine
Although hidden once the engine is assembled, these small aluminium panels play a vital role in maintaining the longevity and performance of the flat-six engine.
Why Do Engine Baffles Fail?
Over many decades of service, engine baffles are exposed to continual heat cycles, vibration, corrosion and repeated engine dismantling.
Common causes of failure include:
- Corrosion caused by moisture and oxidation
- Distortion from excessive heat
- Cracking due to vibration or incorrect handling
- Damage during engine disassembly
- Missing panels following previous engine repairs
- Incorrectly fitted replacements
Bent or damaged baffles may no longer seal correctly against the cylinders, allowing valuable cooling air to bypass the cooling fins. Even small gaps can reduce the effectiveness of the air-cooling system.
When Should Engine Baffles Be Replaced?
Because these components are only accessible during engine disassembly, replacement is highly recommended whenever the engine is apart.
Replacement should be considered if:
- The engine is being rebuilt
- Cylinder heads or barrels are removed
- Baffles show corrosion or oxidation
- Panels are bent or distorted
- Cracks are visible
- One or more baffles are missing
- Previous repairs have used damaged or incorrect parts
Installing new OE Match aluminium baffles during an engine rebuild helps restore the original cooling efficiency and contributes to the long-term reliability of the engine.
Porsche 911 Engine Cooling & Air-Cooled Engine Components
Efficient cooling is fundamental to the performance and longevity of every classic air-cooled Porsche engine. Unlike water-cooled engines, the Porsche flat-six depends entirely on carefully controlled airflow to dissipate heat from the cylinders and cylinder heads.
Every component within the cooling system—including the engine fan, fan housing, engine tinware and internal aluminium baffles—works together to ensure cooling air is distributed evenly throughout the engine.
Replacing worn or missing baffles during an engine rebuild helps restore the factory cooling system to its original efficiency, reducing the risk of overheating and contributing to longer engine life.
Whether you're completing a concours restoration or a high-quality engine rebuild, correctly fitted aluminium baffles are an essential part of achieving reliable performance.
Benefits of Replacing the Engine Baffle Kit
- Restores correct cooling airflow
- Improves cylinder and cylinder head cooling
- Reduces the risk of overheating
- Replaces corroded or damaged original baffles
- Helps maximise engine reliability and longevity
- Provides factory-style fitment
- Essential for professional engine rebuilds and restorations
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110603501
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