ZRP BMW N63 S63 V8 HD Series Connecting Rods
1,299.99€
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The ZRP HD Series Connecting Rods for the BMW N63 and S63 V8 engines are built for drivers who expect their engine to handle serious power without flinching. These rods start with 4340 high-tensile steel and carry an I-beam shape that stays stable when boost rises and cylinder pressure climbs. It’s the kind of strength these twin-turbo V8s appreciate once bigger turbos, hard launches, and long high-RPM pulls enter the mix.
ZRP uses a straight-cut pin end that pairs only with aftermarket pistons, a setup many builders already prefer when they’re chasing reliability with added power. Inside the small end sits an AMPCO 18 bushing known for its resistance to wear and its ability to hold a steady oil film. The radial groove carved into the bushing works like a built-in oil reservoir, feeding the pin even when conditions get tough.
Each rod is shot peened to clear out internal stress, then goes through a multi-stage heat-treating cycle to lock in rigidity. During machining, bend and twist are held tight, which helps the rods stay true through thousands of hard pulls. The tolerances also keep oil clearances consistent, something engine builders notice as soon as they check measurements at the bench.
Every set includes ARP 2000 fasteners rated at 220,000 psi, with ARP L19 bolts offered for builds that call for even more clamping force. ZRP supplies ARP moly and fitting instructions, though most builders will appreciate how straightforward these rods are to work with once the block is open.
For anyone building an N63 or S63 with real power goals, these HD Series rods give the bottom end the backbone it needs. Strong, precise, and built with the kind of details engine builders trust, they turn a boosted V8 into something that holds steady under pressure and feels ready for more.
FEATURES
- I-Beam Shape for extra rigidity
- Two-Piece forging for great strength
- Shot Peening for improved fatigue life
- Magnaflux Inspection guarantees that the consistency of the forged material meets our high-quality standard
- Double ribbed caps for added support
- Multi Stage Heat Treatment for maximum strength, dimensional stability, and fatigue life.
- CNC machining for superior tolerances, precise as much as 0.0002″
- Center to center is maintained under .001″ tolerance
- Finite Element Analysis (FEA) Computer generated stress analysis of con rods
- Optimal balancing for weight matched sets of ± 1gram
EXTENDED MACHINING CHARACTERISTICS
- “Straight Cut” Pin End – Suitable for aftermarket pistons
- Dowel sleeves for perfect fit and accurate re-assembling
- Lipped Cap Relief for improved big-end integrity at extreme application
- Grooves in Thrust Face for weight reduction
APPLICATIONS
- 2011–2017 BMW N63B44 F07/F10 550i 550i xDrive
- 2011–2016 BMW S63B44 F10 M5
- 2011–2015 BMW N63B44 F06/F12/F13 650i 650i xDrive Alpina B6 xDrive
- 2011–2018 BMW S63B44 F06/F12/F13 M6 M6 Gran Coupe
- 2011–2015 BMW N63B44 F01/F02 750i 750i xDrive 750Li 750Li xDrive Alpina B7 B7 xDrive
- 2014–2018 BMW N63B44 F15/F16 X5 xDrive50i X6 xDrive50i
- 2015–2018 BMW S63B44 F85/F86 X5 M X6 M
- 2018–present BMW N63B44 G30 M550i xDrive
- 2018–present BMW N63B44 G05/G06 X5 M50i X6 M50i X5 xDrive50i
- 2019–present BMW N63B44 G07 X7 M50i X7 xDrive50i
- 2019–present BMW N63B44 G11/G12 750i 750i xDrive Alpina B7 xDrive
- 2019–present BMW N63B44 G14/G15/G16 M850i xDrive
- 2017–present BMW N63B44 F90 M5
- 2019–present BMW S63B44 F91/F92/F93 M8 M8 Competition
- 2019–present BMW S63B44 F95/F96 X5 M X6 M
NOTES
Horsepower range for these rods is 155HP. per cylinder with ARP 2000 fasteners and 175HP with ARP L19 Fasteners.
ADDITIONAL INFORMATION:
| Brand | |
|---|---|
| Shape | I-Beam |
| Material | High Tensile Steel 4340 |
| Length | 138.50mm |
| Small End | 22.00mm |
| Bolt Size | 3/8" |
| Application | 4.4L S63 / 4.4L N63 |
| Big End | 57.60mm |
| B.E Width | 17.91mm |
| Set Of | 8 |
| Discplacement | 4.4L |
| Pin Size | 22.00mm |
| Series | Standard |
| Engine | 4.4L N63B44, 4.4L – S63B44 |
| Note | Non-Tapered Pin End / Straight PE |
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.
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.
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.
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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