New
ZRP BMW M3 V8 S65B40 HD Series Connecting Rods
1,299.99€
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In Stock - Available from Supplier
Dispatch between 16 December - 23 December.
The ZRP BMW M3 V8 S65B40 HD Series Connecting Rods give the high-spinning S65 the kind of strength that settles the whole engine. The V8 loves to live near its redline, and once you raise the load or ask for more power, the stock rods start to feel a bit uneasy. You know what? That’s usually the point when builders reach for something that won’t back down when the revs rise.
ZRP machines each rod from 4340 high-tensile steel and shapes it so it handles real power without turning it into something heavy. Inside, AMPCO 18 bushings hold their form under heat and stress, and the small radial groove works like a tiny oil pocket that keeps everything moving smoothly as the S65 sweeps through its RPM range. It seems like a minor detail at first, but anyone who’s spent hours around performance engines knows these touches matter more than they appear.
After machining, each rod goes through shot peening to ease stress through the surface, followed by a multi-stage heat treatment that settles the structure and keeps it steady. Oil clearances stay predictable. Bend and twist stay controlled. And once the rods sit in the block, the whole setup feels clean and confident—exactly what you want when the S65 is singing at high revs.
Every rod comes with ARP 2000 bolts rated at 220,000 psi, and you can move to ARP L19 bolts when your build asks for extra strength. ZRP includes ARP moly and clear fitting instructions, so the install feels natural for anyone familiar with engine assembly.
For M3 owners planning a stronger, more responsive S65, these HD Series rods give the bottom end the firm foundation it needs. They bring stability, ease your worries, and help the V8 deliver that crisp, eager character that makes the S65 so memorable.
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
- 2007–2013 BMW S65B40 E90 M3 4.0L
- 2007–2013 BMW S65B40 E92 M3 4.0L
- 2008–2013 BMW S65B40 E93 M3 4.0L
ADDITIONAL INFORMATION:
| Brand | |
|---|---|
| Shape | I-Beam |
| Material | High Tensile Steel 4340 |
| Length | 140.72mm |
| Small End | 21.00mm |
| Bolt Size | 3/8" |
| Application | 4.0L M3 S65 |
| Big End | 56.00mm |
| B.E Width | 18.45mm |
| Set Of | 8 |
| Discplacement | 4.0L |
| Pin Size | 21.00mm |
| Series | – |
| Engine | 4.0L – S65B40 |
| 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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