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  3. MAXPEEDINGRODS 6KL52Q

MAXPEEDINGRODS 6KL52Q Beam Connecting Rods Bolts Sir 160HP

fits model: Si, Civic. make: Honda. year: 2002–2005.

6kl52q Maxpeedingrods H-beam Connecting Rods Bolts For Honda Civic Si Sir Type S 2002 05 160hp 120k

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 6KL52Q ), ( Part Type: Rod Bolt ), ( Big End Diameter: 48mm ), ( Big End Width: 19.8mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center Length: 138.5mm ), ( Country Of Origin: China ), ( Fit For: For Honda Acura Rsx 2002 2006 160 Hp 120 Kw, For Honda Civic Si Sir Types 2002 2005 160 Hp 120 Kw ), ( For Honda Civic 2.0 I-vtec: Sea 2003 2006 155 Hp 116 Kw ), ( Fitment Type: Performance/custom ), ( Material: Forged 4340 Aircraft Chrome Moly Quality Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Diameter: 22mm ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Power: 160hp / 120kw, 155hp / 116kw ), ( Quantity: Set Of 4 Pieces ), ( Small End Width: 22.86mm ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS H beam Connecting Rods Bolts Honda Sir Types 160hp 120k fits CIVIC SI 2002–2005

The **Maxpeeding Rods 6KL52Q H-Beam Connecting Rod Bolts** are a premium, high-performance upgrade designed specifically for the 2002 2006 Honda Civic SI (160HP) models featuring the **K20Z1 engine**, ensuring enhanced durability, reliability, and performance under extreme stress. These **H-beam connecting rod bolts** are meticulously crafted from **Grade 8.8 forged steel**, a material renowned for its superior tensile strength, fatigue resistance, and ability to withstand the intense forces generated by high-revving, high-power applications. Unlike standard M10 bolts, which are prone to stretching or failure under prolonged stress, these **H-beam bolts** feature a **unique internal geometry** that distributes torque more evenly across the rod, reducing stress concentrations and minimizing the risk of catastrophic bolt failure a critical concern in forced-induction or high-RPM builds. The **6KL52Q** designation ensures compatibility with the **K20Z1 s stock rod pattern**, allowing for a direct drop-in installation without the need for modification, while the **H-beam design** provides a significant advantage over traditional bolts by improving clamp load retention and reducing the likelihood of preload loss over time. Whether you're running a **turbocharged, nitrous-injected, or high-compression naturally aspirated setup**, these bolts are engineered to handle the demands of aggressive driving, aggressive tuning, or even track use, offering peace of mind with every revolution. Built to **OEM specifications with a twist**, Maxpeeding Rods has refined these bolts to exceed stock performance while maintaining ease of installation, making them an ideal choice for enthusiasts seeking a balance between reliability and high-performance gains. Upgrade your Civic SI s internals with confidence, knowing that these **6KL52Q H-Beam bolts** are a proven solution for those pushing the limits of their engine.

### Pros and Cons of Buying Maxpeedingrods 6KL52Q H-Beam Connecting Rod Bolts for a 2002-2005 Honda Civic SI (160HP)

#### **Pros:**

1. **H-Beam Design** The H-beam construction provides superior strength and rigidity compared to traditional bolts. This design distributes stress more evenly across the rod, reducing the risk of bolt failure under high RPM or heavy loads. This is particularly beneficial for forced induction builds or aggressive tuning where stress on the rods and bolts increases significantly.

2. **High-Strength Material** These bolts are likely made from high-grade alloy steel or titanium, which offers better durability and resistance to fatigue compared to stock bolts. This ensures they can handle the increased stresses of a tuned engine without stretching or breaking.

3. **Precision Machining** Maxpeedingrods is known for precision engineering, meaning these bolts are likely manufactured to tight tolerances. This reduces the risk of misalignment or improper seating, which can lead to premature wear or failure.

4. **Compatibility** The 6KL52Q part number is specifically designed for the Honda Civic SI s 6-cylinder engine (K20A2/K20A3), ensuring a proper fit without modifications. This reduces the risk of installation errors or clearance issues.

5. **Aftermarket Support and Reputation** Maxpeedingrods is a well-regarded brand in the tuning community, known for producing high-quality, performance-oriented parts. Their products often come with warranties or guarantees, providing peace of mind for buyers.

6. **Potential for Increased Reliability** For engines running at higher RPMs, with forced induction, or with aggressive camshafts, these bolts can significantly improve reliability by reducing the likelihood of bolt stretch or failure, which is a common failure point in tuned engines.

7. **Ease of Installation** While these bolts are stronger, they are not necessarily harder to install than stock bolts, assuming the user has basic mechanical skills. The threads and fit are designed to be compatible with the engine s existing hardware.

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#### **Cons:**

1. **Cost** High-performance bolts like these are significantly more expensive than stock bolts. For a 2002-2005 Civic SI, the price may be 3-5 times higher than OEM bolts. This can be a substantial investment, especially if you re on a budget or only planning minor tuning.

2. **Overkill for Mild Builds** If your engine is running stock or with only mild modifications (e.g., stock camshafts, no forced induction, and stock compression), these bolts may be unnecessary. Stock bolts can handle the stress of a naturally aspirated, stock-cam engine just fine, and upgrading to H-beam bolts without corresponding engine upgrades could be seen as an unnecessary expense.

3. **Installation Complexity** While not overly difficult, installing these bolts requires care to avoid overtightening or cross-threading. If you re not experienced with engine work, you may need to consult a professional mechanic, adding to the cost.

4. **Potential for Over-Tightening** H-beam bolts are stronger, but they can also be more unforgiving if overtightened. Improper torque can lead to stripped threads or warped rod caps, which could cause more harm than good. Precise torque specifications must be followed.

5. **Limited Availability of Replacement Parts** If something goes wrong during installation or if the bolts fail prematurely (though unlikely with quality parts), finding replacements might be more difficult than for common OEM bolts. However, Maxpeedingrods should still be readily available through their distributors.

6. **Weight** H-beam bolts are heavier than stock bolts. While the difference is minimal, in high-RPM applications, the slight additional weight could have a negligible but cumulative effect on rotating assembly dynamics. This is rarely a concern but is worth noting for enthusiasts who prioritize every gram.

7. **Not a Standalone Reliability Fix** These bolts are only one component of engine reliability. If other parts of the engine (e.g., rods, crankshaft, or oil system) are worn or inadequate for the power levels, upgrading just the bolts won t fully address potential failure points. A holistic approach to engine building is necessary for true reliability.

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### **Conclusion:**

Maxpeedingrods 6KL52Q H-beam connecting rod bolts are an excellent choice for Honda Civic SI owners who are running significant modifications, such as forced induction, aggressive camshafts, or high-RPM tuning. The H-beam design and high-strength material provide a substantial upgrade in reliability, reducing the risk of bolt failure under extreme stress. For these builds, the investment is justified and can prevent catastrophic engine damage.

However, if your engine is running stock or with only minor modifications, these bolts are likely overkill and not worth the cost. In such cases, stock bolts or even aftermarket bolts of lower strength (but still high-quality) may suffice. The key is to match the bolt upgrade to the level of tuning don t spend money on premium bolts if your engine isn t pushing the limits.

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### **Recommendation:** - **Upgrade to Maxpeedingrods 6KL52Q bolts if:**

- You are running forced induction (turbo or supercharger).

- You have aggressive camshafts (e.g., 240-degree or higher duration).

- You are targeting high RPMs consistently (e.g., 8,000 RPM).

- You are building a high-power engine (e.g., 200 HP naturally aspirated or 300 HP with forced induction).

- You prioritize long-term reliability and want to eliminate bolt stretch as a failure point.

- **Stick with stock or lower-tier bolts if:**

- Your engine is running stock or with only mild modifications (e.g., stock camshafts, no forced induction).

- You are on a tight budget and cannot justify the cost.

- You are not running the engine at extreme RPMs or power levels.

- You plan to keep the engine at stock or near-stock power levels indefinitely.

- **Additional Considerations:**

- Always follow the manufacturer s torque specifications (typically around 60-70 ft-lbs for these bolts, but verify with Maxpeedingrods documentation).

- Consider upgrading other critical components (e.g., rods, crankshaft, oil pump) if you are pushing the engine hard, as these bolts are only one part of the equation.

- If you re unsure about your build s power levels, consult with a trusted mechanic or tuning professional to determine whether these bolts are necessary.

In summary, these bolts are a smart investment for serious tuners but may not be necessary for casual or mildly modified engines. Prioritize upgrades based on your specific power goals and engine conditions.

Details:

Horsepower Rating: Advertised horsepower rating: 600HP-800HP. Our representatives will provide you with detailed instructions on how to proceed. Pam's H-Beam Connecting Rods Bolts for Honda Civic Si SiR Types 2002 05 160HP 120K. Boxes, APO/FPO addresses, or Military Mail Boxes.

Bores finished to: /- .005mm or .0002. High Precision Control: Balanced within: /- 1 gram per rod. H-Beam Design: helps improve stiffness, reduce stress risers and weight. One Year Unlimited Mileage Quality Guarantee.

specifications pistonrinro:

  • for models: Si, Civic
  • for makes: Honda
  • for years: 2002-2005
  • brand: Maxpeedingrods
  • mpn: 6kl52q
  • part type: Rod Bolt
  • big end diameter: 48mm
  • big end width: 19.8mm
  • california prop 65 warning: California Prop 65 Warning
  • center length: 138.5mm
  • country of origin: China
  • fit for: For Honda Acura Rsx 2002 2006 160 Hp 120 Kw, For Honda Civic Si Sir Types 2002 2005 160 Hp 120 Kw
  • for honda civic 2.0 i-vtec: Sea 2003 2006 155 Hp 116 Kw
  • fitment type: Performance/custom
  • material: Forged 4340 Aircraft Chrome Moly Quality Steel
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part
  • pin diameter: 22mm
  • pin type: Bronzed Bushing Floating Pin
  • power: 160hp / 120kw, 155hp / 116kw
  • quantity: Set Of 4 Pieces
  • small end width: 22.86mm
  • weight tolerance: Balanced To / 1 Gram In Set

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  • started: May 4, 2026
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  • availability: In Stock

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

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  • rating: 99.7%
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  • city: Rowland height, California

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for models: si, civic, for makes: honda, for years: 2002-2005, part type: rod bolt, big end diameter: 48mm, big end width: 19.8mm, california prop 65 warning: california prop 65 warning, center length: 138.5mm, country of origin: china, fit for: for honda acura rsx 2002 2006 160 hp 120 kw, for honda civic si sir types 2002 2005 160 hp 120 kw, for honda civic 2.0 i-vtec: sea 2003 2006 155 hp 116 kw, fitment type: performance/custom, note: no instruction included, notice: this is aftermarket replcement part, pin diameter: 22mm, pin type: bronzed bushing floating pin, power: 160hp / 120kw, 155hp / 116kw, quantity: set of 4 pieces, small end width: 22.86mm, weight tolerance: balanced to / 1 gram in set,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: forged 4340 aircraft chrome moly quality steel, sku: 13430746228401871,
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