ZRP BMW 3.0L B58 I-Beam Connecting Rods
999.99€
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The ZRP I-Beam Connecting Rods for BMW’s 3.0L B58 engine bring the kind of strength builders look for when they push these engines past factory limits. Each rod starts with 4340 high-tensile steel, shaped to stay rigid under load while still keeping weight in check. It’s a combination that works well on street builds and track-focused setups, since the B58 tends to reward strong bottom-end support once turbo upgrades and harder use enter the picture.
The tapered pin end gives you compatibility with OEM pistons, which makes life easier for anyone building a motor that blends stock parts with forged hardware. Inside the small end, ZRP uses AMPCO 18 bushings. They hold up against wear, they hold oil thanks to a radial groove cut into the surface, and they stay stable through long heat cycles.
Each rod goes through shot peening to remove internal stress, followed by a multi-stage heat-treating process that tightens the grain structure. The result is a rod that stays straight under pressure. Bend and twist are controlled carefully, and the machining tolerances help the oil clearances line up exactly where an engine builder expects them to be.
Every set includes ARP 2000 fasteners rated at 220,000 psi, with ARP L19 bolts available if you want even more clamping force for high-boost setups. ZRP also includes ARP moly and clear installation instructions, though most builders already know their routine once a B58 comes apart on the bench.
For anyone chasing more power from a B58, these rods give the foundation the engine needs to hold strong. It’s a simple idea – build it once, build it right — and these rods fit that mindset.
FEATURES
- 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
- “Tapered” Pin End – Suitable for O.E.M. 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
- 2016–2021 BMW B58B30 F20/F21 M140i
- 2016–2021 BMW B58B30 F22/F23 M240i
- 2016–2019 BMW B58B30 F30/F31/F34 340i
- 2016–2019 BMW B58B30 F32/F33/F36 440i
- 2019–present BMW B58B30 G20/G21 M340i
- 2020–present BMW B58B30 G22/G23/G26 M440i
- 2021–present BMW B58B30 G42 M240i
- 2017–2023 BMW B58B30 G30/G31 540i
- 2016–2022 BMW B58B30 G11 740i 745e
- 2018–present BMW B58B30 G14/G15/G16 840i
- 2017–present BMW B58B30 G01 X3 M40i
- 2018–present BMW B58B30 G02 X4 M40i
- 2018–present BMW B58B30 G05 X5 40i 45e
- 2019–present BMW B58B30 G06 X6 40i
- 2019–present BMW B58B30 G07 X7 40i
- 2018–present BMW B58B30 G29 Z4 M40i
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 | 148.17mm |
| Small End | 22.00mm |
| Bolt Size | 3/8" |
| Application | 3.0L N54 |
| Big End | 53.60mm |
| B.E Width | 23.90mm |
| Set Of | 6 |
| Discplacement | 3.0L |
| Pin Size | 22.00mm |
| Series | Standard |
| Engine | 3.0L B58B30, 3.0L B58 |
| Note | Tapered Pin End |
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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