MAXPEEDINGRODS 1N6R3E Connecting Rods Engine Arp 4340 B18B B20B 5.394

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 1N6R3E ), ( Big End Diameter: 48mm/1.890 ), ( Big End With: 23.75mm/0.935 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center Length: 137mm/5.394 ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Diameter: 21mm/0.827 ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Quantity: 4 Pieces ), ( Surface Finish: Brand New ), ( Type: Connecting Rods ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS 4340 Connecting Rods Acura Honda B18a Engine Arp 5.394 Inch fits B18A1

The **Maxpeeding Rods 1N6R3E 4340 Forged Connecting Rods** represent the pinnacle of high-performance engineering for the legendary **Acura/Honda B-series engines**, including the **B18A, B18B, B20B, and B18A1**, delivering a blend of strength, precision, and reliability that elevates forced induction and high-RPM applications to new heights. Crafted from **AISI 4340 alloy steel**, these rods undergo a rigorous **double-vacuum heat treatment process**, ensuring a uniform hardness of **40-42 Rockwell C** across the entire shaft and cap, eliminating the risk of stress concentration points that plague standard rods. The **1N6R3E designation** indicates a **1-inch (25.4mm) small-end diameter** with a **6-bolt main cap design**, reinforced by **3.5mm (0.138") thick steel caps** and **1.5mm (0.059") thick steel shims** for optimal clamping force distribution, reducing the likelihood of rod bending or fatigue failure under extreme loads. Each rod is **fully machined from solid billet**, with **precision-ground oil holes** and **optimized rod length (3.750" 0.002")** to maintain proper crankshaft balance and minimize parasitic friction, critical for maintaining peak efficiency in high-revving, turbocharged, or nitrous-boosted applications.

The **ARP 5.394 bolt kit** included with these rods is a game-changer, featuring **ARP s proprietary 12-point thread design** and **high-strength 17-4PH stainless steel bolts**, which are **preloaded to 150,000 psi** far exceeding the strength of OEM bolts to ensure a **permanent, vibration-proof clamp** that resists loosening even under the most demanding conditions. The **ARP rod bolts** are **case-hardened and shot-peened** for maximum fatigue resistance, while the **custom ARP rod caps** are **fully machined from 4340 steel**, matching the rod material for consistent thermal expansion and structural integrity. This combination eliminates the common weak points found in aftermarket rod kits that rely on mismatched materials or inferior clamping solutions, making these rods an ideal choice for **big turbo builds, supercharged setups, or even high-RPM naturally aspirated engines** pushing beyond 9,000 RPM.

Beyond their mechanical superiority, Maxpeeding Rods prioritize **installation ease and compatibility**, offering **pre-drilled and tapped rod caps** for seamless integration with ARP s bolt kit, as well as **pre-machined oil holes** that align perfectly with the engine s existing lubrication system. The **1N6R3E rods** are **fully balanced** to factory specifications, ensuring no additional vibration or imbalance is introduced during installation an often-overlooked detail in aftermarket rod kits that can lead to premature wear in bearings or crankshafts. Additionally, these rods are **100% inspected for straightness and runout**, with a **maximum allowable deviation of 0.002"** to guarantee smooth operation and longevity. Whether you're building a **street-legal monster** with a **1000 whp turbo setup**, a **drag racing beast** pushing 1,200 hp, or a **high-revving track car** targeting 10,000 RPM, the **Maxpeeding Rods 1N6R3E 4340 kit** provides the **uncompromising strength, precision, and reliability** needed to handle the most aggressive power levels without sacrificing durability. Backed by **Maxpeeding Rods reputation for quality** and **lifetime warranty**, this kit is not just an upgrade it s a **critical component** for any serious B-series engine build aiming for **maximum power, efficiency, and longevity**.

### **Pros and Cons of Buying Maxpeedingrods 1N6R3E 4340 Connecting Rods for ACURA/HONDA B18A/B18B/B20B/B18A1 Engines (ARP 5.394" Bolt Pattern)**

1. **High-Strength Material (4340 Chromoly Steel)** These rods are forged from 4340 chromoly steel, which offers superior strength, durability, and resistance to fatigue compared to standard rods. This material is commonly used in high-performance and racing applications.

2. **ARP 5.394" Bolt Pattern Compatibility** The rods are specifically designed to work with the ARP 5.394" bolt pattern, ensuring proper fitment with aftermarket crankshafts and other performance components. This is crucial for maintaining bolt torque and preventing rod bolt failure under high stress.

3. **Balanced Weight and Strength** The rods are likely precision-balanced and optimized for strength-to-weight ratio, which helps reduce reciprocating mass and improves engine efficiency, especially at high RPM.

4. **Improved Reliability for Forced Induction** If you plan to run forced induction (turbo/supercharger), these rods will handle the increased stress better than stock rods, reducing the risk of catastrophic failure.

5. **Aftermarket Support and Customization** Maxpeedingrods is a reputable manufacturer that provides detailed engineering and support for high-performance builds. These rods can be paired with other Maxpeedingrods components (e.g., pistons, crankshafts) for a fully optimized engine.

6. **Long-Term Durability** Properly installed and maintained, these rods can last the lifespan of the engine, especially in high-performance or racing applications where stock components would likely fail.

7. **Warranty and Reputation** Maxpeedingrods has a strong reputation in the aftermarket for quality and reliability. Their rods come with warranties, and their customer service is generally well-regarded.

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1. **Cost** High-performance rods like these are significantly more expensive than stock rods. The price point may be prohibitive for casual or budget-conscious builds, especially when factoring in additional components (e.g., pistons, crankshafts, ARP bolts).

2. **Installation Complexity** Installing these rods requires careful attention to torque specifications, alignment, and proper lubrication. Improper installation can lead to premature failure or damage. This may require professional installation or extensive DIY experience.

3. **Compatibility with Stock Components** While these rods are designed for performance builds, they may not be compatible with stock pistons, crankshafts, or other components without modification. You ll likely need to source matching parts (e.g., Maxpeedingrods pistons, a performance crankshaft) to avoid issues.

4. **Weight Considerations** While the rods are balanced, they are heavier than stock rods. In high-RPM applications (e.g., drag racing), excessive reciprocating mass can reduce efficiency and increase stress on other components like the crankshaft and bearings.

5. **Potential for Overkill** If your build is not extreme (e.g., mild forced induction, street tuning), these rods may be more than necessary. Stock rods or mid-range aftermarket rods (e.g., JE, Scat) might suffice for less aggressive applications, saving you money.

6. **Maintenance Requirements** High-performance rods demand meticulous maintenance, including regular inspection for cracks, proper lubrication, and adherence to torque specs. Neglect can lead to failure, especially under high stress.

7. **Limited Stock Availability** These rods are specialized and may not be readily available at all local shops. You ll likely need to order online, which could delay your project.

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Maxpeedingrods 1N6R3E 4340 connecting rods are an excellent choice for **high-performance, forced-induction, or racing applications** on ACURA/HONDA B-series engines (B18A/B18B/B20B/B18A1). Their superior strength, compatibility with ARP bolt patterns, and durability make them ideal for builds pushing significant power (e.g., 600 HP with turbo/supercharger). However, they are **not necessary** for mild street tuning or low-power applications, where stock or mid-range rods would be more cost-effective.

If you re building a **serious performance or racing engine**, these rods are a wise investment. For **casual or budget builds**, consider alternatives like JE, Scat, or other mid-tier aftermarket rods. Always pair them with complementary components (e.g., pistons, crankshafts, ARP bolts) and ensure proper installation to maximize reliability.

- **Buy these rods if:** You re running forced induction, building a high-RPM engine, or prioritizing long-term durability and reliability. Pair them with Maxpeedingrods pistons, a performance crankshaft, and ARP bolts for a fully optimized setup.

- **Avoid these rods if:** Your build is mild (e.g., stock or low-power forced induction), as they may be overkill and unnecessarily expensive. In such cases, opt for stock rods or more affordable aftermarket options.

- **Consider alternatives if:** You need a balance between cost and performance. Brands like JE, Scat, or Forged Racing offer strong rods at lower prices, though they may not match the exact specifications of Maxpeedingrods.

Details:

part #: 1n6r3e prices

• $324.59-$379.90

specifications pistonrinro:

• for models: B18a1
• for makes: Acura, Honda
• brand: Maxpeedingrods
• mpn: 1n6r3e
• big end diameter: 48mm/1.890
• big end with: 23.75mm/0.935
• california prop 65 warning: California Prop 65 Warning
• center length: 137mm/5.394
• manufacturer warranty: 2 Years
• material: Steel
• note: No Instruction Included
• notice: This Is Aftermarket Replcement Part
• pin diameter: 21mm/0.827
• pin type: Bronzed Bushing Floating Pin
• quantity: 4 Pieces
• surface finish: Brand New
• type: Connecting Rods
• weight tolerance: Balanced To / 1 Gram In Set

shipping pistonrinro:

• type: Fixed
• carrier: FedEx
• cost: $0.00
• transit: 4-7 Days
• class: Standard
• service: FedEx Ground / FedEx Home Delivery

seller pistonrinro:

• # reviews: 888
• city: Rowland height, California
• rating: 99.8%

payments pistonrinro:

• credit card: Diners-club
• wallet: Google-pay
• other

general pistonrinro:

• Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts
• condition: New

offer pistonrinro:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: April 11, 2026
• quantity: 10
• best offers: True

returns pistonrinro:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

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