fits model: E34, 525i, M50. year: 1991–1992.

| Brand | BMW |
|---|---|
| Manufacturer Part Number | 1735733 |
| Type | ENGINE BLOCK |
The BMW E34 525i M50 6-cylinder engine, specifically the cylinder block part number 1735733, was produced for BMW vehicles from 1991 to 1992. This engine is a non-Vanos iteration of the M50B25 engine series, which is known for its exceptional power and efficiency.
The cylinder block is the fundamental component of the engine, housing the pistons, cylinders, and crankshaft. In this M50 engine, the cylinder block is made of aluminum alloy, which contributes to the engine's lightweight construction and enhanced thermal efficiency. The block also features a closed-deck design, which provides increased cylinder pressure and improved sealing between the cylinder walls and the engine block.
The cylinder bore measurement for this engine is 84.0 mm, and the engine has a total displacement of 2,494 cc (151.6 ci). The cylinder block is equipped with six cylinders arranged in a straight-six configuration, providing a smooth and balanced power delivery.
Additionally, the cylinder block includes the crankshaft and main bearings, as well as the connecting rods and pistons. The pistons are made of aluminum alloy, which keeps the engine's weight low, and they have a compression height of 36.2 mm. The engine's crankshaft is forged from high-strength steel, ensuring durability and reliability.
The M50 engine's cylinder block is designed with excellent cooling capabilities, which is crucial for maintaining optimal engine performance. The engine features a water jackets system that ensures efficient cooling of the cylinders, pistons, and other critical engine components.
Overall, the BMW E34 525i M50 6-cylinder engine cylinder block, part number 1735733, is a robust and efficient component that plays a vital role in the overall performance of the vehicle. Its lightweight construction, balanced power delivery, and cooling capabilities make it a desirable choice for BMW enthusiasts and mechanics looking for a high-performance engine component.
The BMW E34 525i M50 6-cyl engine, specifically the cylinder block non-Vanos LM77 model produced between 1991 and 1992, is known for its unique characteristics and performance. Here are some pros and cons that might help you decide whether this engine is a good fit for your needs.
Pros:1. Smooth and powerful: The M50 engine is renowned for its smooth power delivery and refined engine noise. It produces around 211 horsepower, which is impressive for a vehicle of its age.
2. Reliability: This engine is known to be quite reliable, especially when well-maintained. It has a robust design and high-quality components, which contribute to its longevity.
3. Fuel efficiency: Compared to some other high-performance engines, the M50 is relatively fuel-efficient. This can save you money on fuel costs in the long run.
4. Aftermarket support: There is a large and active community of BMW enthusiasts, which means that there is a wealth of information and aftermarket parts available for this engine.
Cons:1. Cost: The M50 engine can be quite expensive to purchase, especially if you're looking for a high-quality used one. Additionally, the cost of maintenance and repairs can be higher than for some other engines.
2. Complexity: The M50 engine is a complex piece of machinery, with many intricate components. This can make repairs more difficult and time-consuming.
3. Emissions: This engine does not meet modern emissions standards, which can make it difficult to register and insure in some areas.
4. Availability: It may be challenging to find a BMW E34 with the M50 engine in good condition, especially if you're looking for a specific model or year.
Conclusion:The BMW E34 525i M50 6-cyl engine, specifically the non-Vanos LM77 model, is an impressive piece of machinery that offers smooth power delivery, reliability, and fuel efficiency. However, it comes with some drawbacks, such as high cost, complexity, emissions issues, and availability. Ultimately, whether this engine is a good fit for you depends on your budget, maintenance skills, and driving preferences.
If you're willing to invest in a high-performance engine and are prepared to deal with the complexities and costs that come with it, then the M50 could be an excellent choice. However, if you're looking for a more affordable and low-maintenance engine, you may want to consider other options. Ultimately, it's essential to weigh the pros and cons carefully and make an informed decision based on your specific needs and circumstances.
Crosshatching visible on cylinder walls. 1991 - 1992 Bmw E34 525I M50 6-cyl engine cylinder short block non-vanos LM77, this engine block is in good condition with minor cosmetic flaws. Larsen motors. This part was pulled from a 1992 Bmw 525I vain-wbahd5316nbf98020mileage-unknown engine-m50transmission-manual body style-sedan body code-e34exterior color granite-silver l0237 interior black p0406stock # LM77, removed from: with 121,325 miles, please review all pictures to assess the condition of item.
Mounts in good condition.
