A used Subaru EZ30 engine with low mileage in good condition would be a naturally aspirated, 3.0L, 6-cylinder, flat-six boxer engine, often imported from Japan (JDM), featuring DOHC valvetrain and a split aluminum block. While specific full specifications vary slightly between EZ30 models, they generally provide balanced performance for mid-sized vehicles. Buyers should confirm the included components and compatibility with their specific vehicle, as JDM engines may require replacement of some US-spec external components.
Key Specifications & Features
- Engine Type: Boxer H6 (horizontally opposed 6-cylinder).
- Displacement: 3.0 Liters.
- Valvetrain: DOHC (Double Overhead Camshafts).
- Power Output: Approximately 207-250 horsepower (varies by specific EZ30 model).
- Torque: Approximately 254 lb-ft (varies by specific EZ30 model).
- Block: Split aluminum block.
- Intake: Aluminum intake manifold with variable-length design.
- Timing: Uses a timing chain for both the engine and water pump.
- Fueling: Uses port injection.
- Bore: 89.2 mm.
- Stroke: 79.0 mm.
- Compression Ratio: Around 10.6:1.
What to Expect When Purchasing
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JDM Engines:Many EZ30 engines are JDM (Japanese Domestic Market) imports, meaning they come from vehicles in Japan and are often sold as used, low-mileage units.
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Components Included:Expect a complete engine long block, but always verify with the seller what specific components are included, such as the oil pan, oil pump, valve covers, and water pump.
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Compatibility:Be prepared to use your vehicle’s existing US-spec electronic and external components for installation, as JDM engines may require modifications for compatibility.
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Condition:Look for sellers who provide detailed condition information and proof of passing compression tests, as this indicates the engine is in good operational shape.
Where to Find Them
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Marketplaces:Online marketplaces like eBay are common places to find used EZ30 engines for sale.
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Specialized Importers:Some vendors specialize in JDM imports and can be a good source for these engines.



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