ACL Race Series Connecting Rod Bearing Set BMW N63 S63

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429.99

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The ACL Race Series Connecting Rod Bearing Set for BMW N63 and S63 engines is built for powerplants that live under relentless pressure. When twin turbos push deep into boost and the crank spins hard through heat and load, factory bearings can fall short. ACL Race bearings are made for that breaking point—the moment when strength, precision, and oil control decide if your engine holds or gives in.

Each bearing is crafted with ACL’s tri-metal construction: a hardened steel backing for stability, a copper-lead layer for superior load handling, and a precision overlay that maintains a consistent oil film under intense heat. This design minimizes friction and wear while keeping oil pressure steady across every crank revolution. It’s a setup proven to protect against the extreme stress that tuned and high-performance BMW V8 engines experience.

The ACL Race Series material is trusted across motorsport builds for a reason—it offers exceptional fatigue resistance, stability under load, and predictable oil control at high RPM. These bearings maintain tight clearances, helping your N63 or S63 deliver smooth power and consistent performance during extended pulls, track sessions, or daily street abuse.

Designed as a direct-fit replacement for BMW’s twin-turbo V8 engines—including models such as the 550i, 650i, 750i, M5, M6, X5 M, and X6 M—installation is straightforward and precise. No machining, no modification—just the perfect match for OEM geometry with the durability of motorsport engineering.

For anyone running a tuned, boosted, or track-focused N63 or S63, ACL Race Series bearings are an essential safeguard. They reinforce the bottom end, keep oil control consistent, and deliver peace of mind under pressure. Built for engines that don’t take it easy, they’re the quiet strength behind every hard pull and every redline hit.

ADDITIONAL INFORMATION:

Brand

Half Type

Identical halves

Material

F781

Min. Std Shaft Size

53,971 mm / 2.1248 in

Max. Std Shaft Size

53,99 mm / 2.1256 in

Min. Std Tunnel Size

57,6 mm / 2.2677 in

Max. Std Tunnel Size

57,616 mm / 2.2683 in

Max Wall at Crown

1,794 mm / 0.0706 in

Max Overall Length

15 mm / 0.5906 in

PREPREG is a common term for a reinforcing fabric such carbon which has been pre-impregnated with a resin system. This resin system (typically epoxy) already includes the proper curing agent. As a result, the prepreg is ready to be laid into the mold without the addition of any more resin. In order for the laminate to cure, an autoclave production process is used, a combination of high pressure and heat.

  • Maximum strength and performance characterictics. In a hand layup production process, it is difficult to achieve 50% fabric and 50% resin content.  Typical hand laminates, even when vacuum bagged, end up with a significant amount of excess resin. Excess resin increases brittleness and reduces overall strength properties. On the other hand, most prepregs contain around 35% resin. This is ideal for maximum cured properties and generally impossible to achieve in normal hand lamination.
  • Uniformity and repeatability. The prepreg is of uniform thickness and each part coming out of the mold may theoretically be the same. Vacuum bagging technology may have some errors in processing, but prepreg ensures production consistency.
  • Reduce curing time. After the thermal curing cycle, no need to wait for the standard 48 hours can be fully cured.
  • Aesthetics. Although prepreg processing still requires mold preparation and demoulding, prepreg processing eliminates air bubbles, makes it easier to obtain a smooth, glossy surface as well as eliminates any seaming lines.

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We offer free tracked shipping on all orders within mainland EU. Orders to remote areas such as Malta, Cyprus, and Iceland may incur a surcharge. Worldwide shipping is also available—please contact us for a quote.

Most orders dispatch within one business day (Monday to Friday). EU delivery takes 3–5 working days from dispatch, and tracking details will be provided via email once your order has shipped.

Please note that import taxes may apply outside the EU, and these are the responsibility of the buyer. Some items may ship directly from our suppliers and may have varying delivery times. If an item is out of stock, we will contact you to discuss the available options.

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RETURNS

Changed your mind? You can return unused, uninstalled items in original packaging within 30 days of delivery. Return shipping is the customer’s responsibility unless the item is faulty.

Custom, used, or built-to-order items are non-returnable.

Once we receive and inspect your return, refunds are typically processed within 10 business days.

If your item is damaged or incorrect, contact us within 48 hours with photos and order details.

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WARRANTY

All VA and VA Motorsports products come with a 1-year limited warranty covering manufacturing defects and fitment issues. For third-party items, warranty terms vary by brand—please check the product listing or contact us for details.

This warranty does not cover wear and tear, incorrect installation, cosmetic damage, labor, or third-party costs.

To start a claim, email us with your order number, issue description, and photos. If the claim is approved, we’ll offer a replacement, store credit, or a refund.

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ACL Race Series Connecting Rod Bearing Set BMW N63 S63
ACL Race Series Connecting Rod Bearing Set BMW N63 S63
429.99