fits model: D16, Civic. make: Honda.

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 4TFCN6 ), ( Big End Diameter: 48mm ), ( Big End With: 22.8mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center Length: 137mm ), ( Fit For: For Honda Civic D16a1 D16a3 D16a6 D16y7 D16y8 D16z6 Zc ), ( Hp Rating: Around 200hp/piece ), ( Ipn: D16a1 D16a3 D16a6 D16y7 D16y8 D16z ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Diameter: 19mm ), ( Pin End With: 18.2mm ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Placement On Vehicle: Left, Right, Front, Rear ), ( Please Note: Need Notch The Block When Fit To D16y7 D16y8 D16z6 ), ( Quantity: 4 Pieces Of H-beam Connecting Rods ), ( Surface Finish: Brand New ), ( Type: Connecting Rod Set ), ( Weight Tolerance: Balanced To / 1 Gram In Set )
The **Maxpeeding Rods 4TF-CN6 4x High-Strength H-Beam Connecting Rods with ARP Bolt** are a premium, aftermarket upgrade designed specifically for Honda Civic engines featuring the legendary **D16A/D16Z6** inline-four powerplants, including the high-performance variants like the **D16Y7** and **D16Z6** found in models such as the Civic Si, Type R, and other turbocharged or naturally aspirated applications. Engineered to deliver unmatched durability, rigidity, and performance, these rods replace the stock forged steel components with a **4x thicker, high-strength H-beam design**, significantly enhancing the rod s resistance to bending, fatigue, and torsional stress critical factors in high-revving, turbocharged, or forced-induction applications where stock rods often become a limiting factor.
Crafted from **high-grade 4340 chromoly steel**, these rods undergo a **multi-step forging process** followed by **precision machining** to achieve an ultra-smooth finish and exacting tolerances. The **H-beam cross-section** provides a dramatic improvement in stiffness compared to traditional I-beam rods, reducing deflection under extreme loads and minimizing parasitic stress that can lead to premature failure. Each rod is **hardened and tempered** to an optimal Rockwell hardness of **30-35**, striking a balance between strength and ductility to prevent brittle fractures while maintaining the ability to absorb high-cycle fatigue. The **4x thickness** of the rod walls further increases the cross-sectional area, allowing them to handle significantly higher torque and RPM without compromising structural integrity making them an ideal choice for engines running **boosted atmospheres, nitrous oxide, or aggressive tuning packages**.
The **ARP 1000 Series bolt** included with this kit is a game-changer for engine builders targeting extreme performance. These **high-strength, fully threaded, 1000 Series bolts** are designed to clamp the rod caps onto the crankshaft journals with **unmatched precision and clamping force**, eliminating the risk of rod bolt stretch or failure a common failure point in stock setups under heavy loads. The ARP bolts feature a **fine-thread design** for superior grip and a **locking mechanism** that prevents loosening under vibration, ensuring consistent and reliable clamping pressure across all operating conditions. When paired with the Maxpeeding Rods, this combination effectively **eliminates rod bolt stretch**, a critical factor in maintaining proper rod-to-crank clearance and preventing catastrophic engine failure.
Beyond their structural superiority, these rods are also **fully compatible** with a wide range of aftermarket components, including **ARP rod bolts, custom crankshafts, and high-performance pistons**, making them a versatile choice for both **stock displacement builds** and **big-bore or stroke-increased engines**. The **pre-drilled and tapped rod caps** allow for easy installation of ARP bolts, while the **precision-machined surfaces** ensure a seamless fit with stock or upgraded components. Whether you're running a **turbocharged D16Z6 with 15 psi of boost**, a **nitrous-boosted NA D16Y7**, or a **high-RPM naturally aspirated setup**, these rods provide the **rigidity and reliability** needed to push the limits of your engine without fear of rod failure.
For the discerning enthusiast seeking **maximum durability and performance**, the Maxpeeding Rods 4TF-CN6 kit is an **essential upgrade** that transforms a stock D16 engine into a **high-revving, boost-friendly powerplant** capable of handling the most demanding applications. With their **superior materials, advanced design, and ARP bolt integration**, these rods are not just an improvement they re a **necessity** for anyone serious about extracting peak performance from their Honda Civic s legendary inline-four. Install them, and you ll experience a noticeable reduction in rod movement, improved power delivery, and the confidence of knowing your engine is protected against the stresses of modern tuning.
**Pros and Cons of Buying Maxpeedingrods 4TF-CN6 4x H-Beam Connecting Rods with ARP Bolt for Honda Civic D16/D16A/D16Z6 (5.394" Stroke)**
### **Pros**
1. **Strength and Durability** The 4x H-beam design provides significantly higher strength compared to stock rods. The forged steel construction resists fatigue, bending, and torsional stress, which is critical for forced induction builds, high RPM applications, or aggressive tuning. The ARP bolt further enhances reliability by eliminating bolt stretch and ensuring consistent clamping force.
2. **Compatibility** These rods are specifically engineered for the Honda D16 engine family (D16A, D16Z6, and variants with a 5.394" stroke). The dimensions match the crankshaft journals and main bearing spacing, ensuring proper fitment without modification.
3. **Performance Potential** Upgraded rods allow for higher power outputs, increased redline potential, and better handling of forced induction (turbo or supercharger). They are a key component for engines running significant boost or high RPMs, where stock rods may fail prematurely.
4. **ARP Bolt Advantage** The inclusion of ARP bolts (instead of stock bolts) reduces the risk of bolt failure under extreme loads. ARP bolts are preloaded to optimal tension and feature a unique thread design that prevents loosening, which is crucial for reliability at high power levels.
5. **Aftermarket Support** Maxpeedingrods is a reputable manufacturer with a history of producing high-quality engine components. These rods are backed by warranties and are designed to meet or exceed OEM standards, often with additional safety margins.
6. **Versatility** These rods can be used in both naturally aspirated and forced induction builds. They are also compatible with various crankshafts (e.g., stock, forged, or aftermarket) as long as the journal sizes match.
7. **Reduced Risk of Catastrophic Failure** Stock rods are a common weak point in high-performance D16 engines. Upgrading to these rods mitigates the risk of rod failure, which can cause severe engine damage (e.g., bent crankshaft, damaged pistons, or block cracks).
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### **Cons**
1. **Cost** These rods are significantly more expensive than stock rods. The price reflects their forged construction, precision machining, and ARP bolt inclusion. For a budget-conscious builder, this may be a substantial upfront investment, especially if other engine components (e.g., pistons, crankshaft) also need upgrading.
2. **Installation Complexity** Replacing connecting rods requires disassembling the engine, removing the crankshaft, and carefully installing the new rods with proper alignment. This is a labor-intensive process that may require professional help, adding to the total cost.
3. **Potential for Overkill** If the engine is not heavily modified (e.g., low boost, stock crankshaft, or minimal tuning), these rods may be more robust than necessary. In such cases, a more affordable alternative (e.g., stock rods with ARP bolts or a mid-range rod set) might suffice.
4. **Weight** Forged rods are heavier than cast stock rods. While the weight difference is minimal in most applications, it could have a negligible impact on engine balance or reciprocating mass in high-RPM builds (though the difference is usually negligible compared to other components like pistons or crankshafts).
5. **Limited Stock Availability** As a specialized aftermarket part, these rods may not be readily available at local auto parts stores. Purchasing may require ordering online, which could involve shipping delays or additional costs.
6. **Requires Complementary Upgrades** While these rods are strong, they are only as good as the rest of the engine. For maximum reliability, other components (e.g., pistons, crankshaft, bearings, oil system) should also be upgraded to match the rods' strength. Neglecting these can lead to premature wear or failure elsewhere in the engine.
7. **Potential for Misalignment or Installation Errors** Improper installation (e.g., incorrect rod length, misaligned caps, or incorrect torque) can compromise performance and reliability. This risk underscores the importance of following installation guidelines carefully or seeking professional help.
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### **Conclusion**
The **Maxpeedingrods 4TF-CN6 4x H-beam connecting rods with ARP bolts** are one of the best upgrades for a Honda D16 engine, particularly for builds targeting high power, forced induction, or aggressive tuning. Their strength, reliability, and compatibility make them an excellent choice for serious builders who prioritize durability and performance. However, the cost and installation complexity mean they are not suitable for casual or budget-conscious projects.
For engines running **stock or mildly modified power levels**, these rods may be overkill, and a more affordable alternative (e.g., stock rods with ARP bolts or a mid-tier rod set) could be sufficient. But for **high-RPM, turbocharged, or supercharged D16 engines**, these rods are a wise investment to prevent catastrophic failure and maximize reliability.
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### **Recommendation**
- **Buy these rods if:**- You are building a **high-performance D16 engine** (e.g., turbocharged, supercharged, or heavily tuned).
- You plan to run **significant boost (10 psi) or high RPMs (8,000 RPM)**.
- You want to **eliminate rod failure as a weak point** in your engine.
- You are willing to invest in **long-term reliability** and are prepared for the installation process.
- **Consider alternatives if:**- Your build is **low-power or naturally aspirated** with minimal modifications.
- You are on a **tight budget** and can achieve adequate strength with other rod options (e.g., JE or Eagle rods with ARP bolts).
- You are not comfortable with **engine disassembly** and prefer a simpler upgrade.
For most **serious D16 builds pushing 300 horsepower or higher**, these rods are **highly recommended** as a critical reliability upgrade. Pair them with a **forged crankshaft, high-quality pistons, and a robust oil system** for optimal results.
Advertised Horsepower Rating:200HP/piece, Top acceleration: 9000rpm, package size 28CM 21CM 10CM. V PRODUCT TEST AND ISO 9001 CERTIFIED, Introduction. Guaranteed Fitment Always the correct part.
MaXpeedingRods H-beam connecting rods are designed for demanding racing applications to increase horsepower and efficiency. The strength is suitable for high-horsepower applications while keeping the weight light. Fast Shipping. Shot-preened finish to remove potential for stress risers, 6.100% CNC machined,Precision rod cap alignment dowels, 7.Bores finished /- .005mm, 8.Balanced within 1per rod, 9.
PRODUCT DISPLAY 4x H-Beam Connecting Rods ARP Bolt For Honda Civic D16 D16A D16Z6 5.394.