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S85 Engine

The S85 engine is renowned as one of the most impressive mechanically minded naturally aspirated engines in the history of automobiles which is the screaming 5.0L V10 engine that is the core of the E60 M5 and E63/E64 M6. Being the only BMW with a V10, it was designed with direct experience given by the company Formula 1 experience, heavily inspired by the P84/5 racing engine. It has a huge 92mm bore and a short 75.2mm stroke enabling it to rev to a stratospheric 8,250 RPM redline and generate 500 hp (373 kW) and 384 lb-ft of torque with no forced induction.

39 in stock

Price range: $8,000.00 through $16,000.00

The prices are exclusive of taxes and shipping. The price may vary depending upon the miles and year of manufacturing.

Additional Information

Brand

BMW

Conditions

Remanufactured, Used

Miles

70000-130000

Year Compatibility

2005–2010

Verified

Tried & Tested

Warranty

Up to 3 Months

What we offer

Specifications

The BMW S85 engine is a naturally aspirated 5.0-liter V10 powerhouse, famously used in the E60 M5 and E63/E64 M6 models. It produces an impressive 500 horsepower at 7,750 rpm and 520 Nm (384 lb-ft) of torque at 6,100 rpm, featuring a high-revving design with a redline of 8,250 rpm. The engine employs advanced technologies such as double-VANOS variable valve timing, individual throttle bodies for each cylinder, and a lightweight aluminum construction to maximize performance and responsiveness. Renowned for its racing-inspired engineering, the S85 delivers a thrilling driving experience with a perfect blend of power, precision, and smoothness. Feel the rush of 500 horsepower and race-inspired engineering with the BMW S85 V10 engine, delivering unmatched power, precision, and high-revving excitement.


Engine Variants

S85B50

The S85B50 is a 4,999 cc naturally aspirated 90-degree V10 developed by BMW M for high-performance applications. Producing 507 hp at 7,750 rpm and revving to approximately 8,250 rpm, it was designed with a strong focus on high-RPM power and motorsport-inspired technology. The engine features Double-VANOS variable valve timing, individual throttle bodies, a high compression ratio, and a lightweight construction to deliver sharp throttle response and strong top-end performance. The S85B50 was used in the BMW M5 E60 and BMW M6 E63/E64, where it became famous for its distinctive V10 sound and exceptionally high-revving character.

S65B40

The S65B40 is a 4.0-liter naturally aspirated V8 developed from the technology and architecture of the S85 V10, essentially adapting the high-revving concept into a lighter eight-cylinder package. It produces approximately 414 hp at 8,300 rpm and can rev to around 8,400 rpm, making it one of BMW M’s highest-revving production V8 engines. The S65 uses Double-VANOS, individual throttle bodies, a high compression ratio, and lightweight components to provide immediate throttle response and strong performance throughout the rev range. It was used exclusively in the BMW M3 E90, E92, and E93, and is particularly known for its linear power delivery, sharp response, and distinctive high-RPM V8 character.


Frequently Asked Questions

  1. What vehicles use the S85 engine?

    The BMW S85 engine was used exclusively in the E60 M5 and E63/E64 M6 models from 2005–2010.

  2. Are your S85 motors tested?

    Yes. Every used S85 motors undergoes compression, leak, and performance testing before shipment.

  3. Do you offer a warranty?

    Absolutely — all S85 engines include a standard limited warranty for customer peace of mind.

  4. Is the S85 engine reliable?

    When properly maintained, the S85 offers outstanding longevity. We recommend replacing rod bearings and VANOS components during installation for optimal performance.

  5. Are these engines ready to install?

    Yes. All units are cleaned, inspected, and prepped for direct installation into compatible BMW M5 or M6 chassis.

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Price range: $8,000.00 through $16,000.00Select options