1. Car & Truck Engines Used/New Products
  2. sku: 4471104379988652
  3. BMW 7841454

BMW 7841454 Engine Block Rotating 4.0L V8

fits model: E90, E92, E93, M3, S65. make: Bmw. year: 2008–2013.

7841454 Bmw 08-13 E90 E92 E93 M3 S65 Engine 4.0l V8 Block Rotating Assembly Oem

( Manufacturer Part Number: 7841454 ), ( Part Type: Engine Block ), ( Oe/oem Part Number: S65b40a ), ( Engine Size: 4 L )

Review BMW Engine 4.0l V8 Block Rotating Assembly Oem fits E90 E92 E93 M3 S65 2008–2013

The BMW 7841454 08-13 E90, E92, E93 M3 S65 Engine is a high-performance powertrain that graces the iconic BMW M3 models produced between 2008 and 2013. This engine, with the specific part number 7841454, is a 4.0-liter V8 unit, boasting an unparalleled balance of power, efficiency, and refinement.

At its core, the S65 engine is characterized by its double-V design, with four banks of cylinders arranged in two sets of three cylinders each. This layout not only results in a compact and lightweight design but also provides an optimal balance between power and weight distribution.

The engine block is made of aluminum, which significantly reduces its weight and enhances its heat dissipation capabilities. The cylinder bore is lined with a Nikasil coating, ensuring a durable and wear-resistant surface. The cylinder walls feature a closed-deck design, which increases the engine's rigidity and improves its overall performance.

The crankshaft is a forged steel unit, which ensures superior strength and durability. The connecting rods are also made of forged steel, ensuring a robust power transfer from the crankshaft to the pistons. The pistons themselves are made of lightweight aluminum alloy, further contributing to the engine's weight reduction.

The cylinder heads feature a sophisticated valvetrain system, with four valves per cylinder operated by double-overhead camshafts. This design optimizes the intake and exhaust flows, leading to improved power output and efficiency. The heads also feature variable valve timing (VANOS) and variable valve lift (VVC), which allow for optimal engine performance across the entire rev range.

The S65 engine is renowned for its impressive power output. In its stock configuration, it delivers around 414 horsepower and 295 lb-ft of torque. However, the engine's potential for power gains is immense, making it a popular choice among BMW enthusiasts and tuners.

The engine block's rotating assembly is completed by a lightweight, balanced flywheel and a multi-plate clutch system. This setup ensures smooth and efficient power delivery to the transmission.

In summary, the BMW 7841454 08-13 E90, E92, E93 M3 S65 Engine is a masterpiece of automotive engineering. Its compact, lightweight, and powerful design sets the benchmark for high-performance engines, making it a must-have for any BMW enthusiast or collector.

Buying a BMW M3 (E90, E92, E93) S65 4.0L V8 engine block can be an intriguing prospect for BMW enthusiasts or those seeking high-performance engine upgrades. This engine, which was used in various BMW M3 models between 2008 and 2013, boasts impressive power and torque outputs. Here are some potential pros and cons of purchasing this engine block.

Pros:

1. Power and Performance: The S65 engine block delivers substantial power and torque, making it an alluring choice for those seeking significant upgrades.

2. Durability: Known for its robustness, the S65 engine block is considered a reliable and durable option for high-performance applications.

3. Wide Availability: The S65 engine block is relatively common, ensuring that parts and resources are readily accessible.

4. Versatility: This engine can be used in various applications, making it a versatile option for those looking to build custom BMW projects.

Cons:

1. Complexity: The S65 engine block is a complex piece of machinery, and installation, maintenance, and repair can be challenging and time-consuming.

2. Cost: The S65 engine block is a premium engine, and the cost of purchasing, installing, and maintaining it can be substantial.

3. Compatibility: Ensuring compatibility with other components, such as the transmission and wiring harness, can be a challenge.

Ending Conclusion:

The S65 engine block offers impressive power, durability, and versatility for BMW enthusiasts or those seeking high-performance engine upgrades. However, the complexity and cost associated with this engine may not be suitable for everyone. Prospective buyers should carefully consider their goals, resources, and expertise before deciding to purchase a BMW M3 S65 4.0L V8 engine block.

Recommendation:

If you are confident in your mechanical abilities and have the necessary resources, the S65 engine block can be a rewarding and thrilling addition to your BMW project. However, for those who lack experience or resources, it may be wise to consider alternative, more accessible engine upgrades. Always ensure that you source the engine block from a reputable dealer or seller to guarantee authenticity and quality.

Details:

Has a tiny nick in the 8th cylinder see last pic. Spins over freely, no resistance. Cylinder walls have some marks but no scoring, all 8 are smooth and nothing can be felt. Comes as you see, no oil pan or heads, just rotating assembly.

Selling a used 2008 2013 BMW E9x M3 rotating assembly, with crankshaft and pistons. Rear flywheel has stripped bolts, will need to be drilled out or removed somehow.

part #: 7841454 prices

  • $1595.00-$2299.99

specifications grokengines:

  • for models: E90, E92, E93, M3, S65
  • for makes: Bmw
  • for years: 2008-2013
  • mpn: 7841454
  • part type: Engine Block
  • oe/oem part number: S65b40a
  • engine size: 4 L

shipping grokengines:

  • service: Flat Rate Freight
  • cost: $300.00
  • type: Fixed
  • class: Freight

payments grokengines:

  • credit card: Discover
  • wallet: Paypal
  • other

returns grokengines:

  • policy: No Returns

seller grokengines:

  • # reviews: 498
  • rating: 100.0%
  • city: Lyman, South Carolina

offer grokengines:

  • started: April 11, 2025
  • sold: 0
  • options: Ship-to-home
  • quantity: 1
  • availability: In Stock

general grokengines:

  • condition: Used
  • Car Truck Parts Accessories > Engines Engine Parts > Engines
for models: e90, e92, e93, m3, s65, for makes: bmw, for years: 2008-2013, part type: engine block, oe/oem part number: s65b40a, engine size: 4 l,
category: auto parts > car truck parts accessories > engines engine parts > engines, sku: 4471104379988652,

Bmw 7841454 Is Similar To:

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2 offers $1595.00–$2299.99 USD
  • Offer #1: $1595.00 price + $195.95 shipping estimate = $1790.95* total. MODEL: BMW M3 ENGINE S65.+$195.95 shipping
  • Offer #2: $2299.99 price + $300.00 shipping estimate = $2599.99* total. Has a tiny nick in the 8th cylinder (see last pic), can be felt with fingernail. Spins over freely, no resistance.+$300.00 shipping

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