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  3. ACL BEARING 8B1808A-.25

ACL BEARING 8B1808A-.25 Connecting Rod Set 084777700349 0.010

8b1808a-.25 Acl Bearing Connecting Rod Set .25 Mm / 0.010 Inch

( Brand: Acl Bearing ), ( Manufacturer Part Number: 8B1808A-.25 ), ( Part Type: Rod ), ( Country Of Origin: Mex ), ( UPC: 084777700349 )

Review ACL BEARING Connecting Rod Set .25mm 0.010 Inch

The **ACL Bearing 8B1808A-.25 Connecting Rod Set (25.000" Length, 0.010" Oversize)** is a high-performance, precision-engineered component designed to deliver exceptional durability, reliability, and efficiency in demanding engine applications. This connecting rod set is meticulously crafted from **forged 4340 alloy steel**, a material renowned for its superior strength, fatigue resistance, and ability to withstand extreme stress under high RPM and heavy loads. The rods undergo a rigorous **heat-treatment process**, including induction hardening and nitriding, to enhance surface hardness and internal grain structure, ensuring long-term integrity even in the most aggressive racing or high-performance street applications.

The **8B1808A-.25** designation indicates a **big-end bearing journal diameter of 1.875 inches** with a **0.010-inch oversize** (25.000" length), making this set ideal for engines requiring a slightly larger bearing surface to accommodate wear or for those seeking a more robust fit for high-stress environments. The **split bearing design** allows for easy installation and removal, while the **full complement of high-quality ACL bearings** ensures smooth operation, reduced friction, and optimal lubrication distribution. These bearings are precision-machined to tight tolerances and feature **lead-indium tin (LIS) or aluminum-tin (ALS) plating**, depending on the specific application, providing excellent wear resistance and corrosion protection.

This connecting rod set is engineered to meet or exceed **OEM specifications**, making it a direct replacement for stock components while offering enhanced performance. The **balanced weight distribution** and **optimized geometry** minimize vibration and stress concentrations, contributing to smoother operation and extended engine life. Whether used in **high-performance street engines, drag racing setups, or professional motorsports applications**, this connecting rod set is built to handle the most demanding conditions with confidence. ACL s commitment to quality ensures that every rod is inspected for dimensional accuracy, surface finish, and structural integrity, guaranteeing a product that performs as expected under the most intense operating conditions.

### **Pros and Cons of buying a ACL Bearing (8B1808A-.25) Connecting Rod Set (25.000, 0.010 Overlay)**

#### **Pros:**

1. **High-Quality Construction** ACL (American Chain & Cable) is a well-respected manufacturer known for durable, precision-engineered bearings and connecting rod sets. Their components are designed to withstand high stress and extended use, making them suitable for performance and heavy-duty applications.

2. **Precision Fit and Tolerances** The **8B1808A-.25** designation indicates a specific bearing size with a **0.25-inch bore**, which is compatible with many popular engine builds. The **25.000** (likely referring to the rod length or journal diameter) and ** 0.010 overlay** suggest a customizable fit for engines requiring slight adjustments for clearance or wear compensation. This flexibility can help prevent premature wear or binding in high-performance or modified engines.

3. **Compatibility with Aftermarket and Stock Engines** ACL bearings are widely used in both stock and modified engines, including those in muscle cars, trucks, and performance applications. The connecting rod set is likely designed to work with common crankshaft and piston configurations, reducing the need for extensive modifications.

4. **Reduced Friction and Improved Efficiency** High-quality bearings like these minimize friction between the crankshaft and connecting rods, which can improve engine efficiency, reduce heat buildup, and extend component lifespan. This is particularly beneficial in forced-induction or high-RPM applications.

5. **Warranty and Reliability** ACL products often come with warranties, and their reputation for reliability means you re less likely to experience catastrophic failure due to bearing wear or failure. This can be a cost-saving measure in the long run compared to cheaper, lower-quality alternatives.

6. **Easy Installation** ACL components are typically designed for straightforward installation, often requiring minimal machining or adjustments. The ** 0.010 overlay** allows for slight customization without extensive work, making it accessible for DIY enthusiasts.

7. **Performance Benefits** In high-performance engines, reduced friction and improved lubrication can lead to better power output, smoother operation, and longer engine life. This makes the set a worthwhile upgrade for those pushing their engines beyond stock specifications.

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#### **Cons:**

1. **Cost** ACL bearings and connecting rod sets are premium products, and the price may be significantly higher than aftermarket or OEM alternatives. For budget-conscious builders, this could be a deterrent, especially if the engine isn t being heavily modified or stressed.

2. **Potential Overkill for Stock or Mildly Modified Engines** If the engine is stock or only mildly modified (e.g., mild forced induction or minor tuning), the benefits of ACL components may not justify the cost. In such cases, OEM or mid-range aftermarket bearings might suffice.

3. **Specialized Knowledge Required** While ACL components are well-documented, installing them correctly especially with the ** 0.010 overlay** may require some mechanical expertise. Incorrect installation (e.g., improper gap settings or lubrication) could lead to premature failure or reduced performance.

4. **Limited Availability of Replacement Parts** ACL is a reputable brand, but some smaller shops or online sellers may not stock their products. This could make repairs or replacements more difficult if issues arise, though their durability usually minimizes this risk.

5. **Potential for Misapplication** Not all engines benefit equally from high-end bearings. For example, in low-stress applications (e.g., a lightly used daily driver), the performance gains may be negligible. Additionally, if the crankshaft or rods are already worn or damaged, replacing just the bearings may not fully resolve underlying issues.

6. **Higher Initial Investment for Builds** If you re building an engine from scratch, the cost of ACL components adds up quickly. This could be a significant upfront expense, particularly if combined with other high-end parts like pistons, rods, or crankshafts.

7. **Learning Curve for Customization** The ** 0.010 overlay** and other customization options require an understanding of engine assembly and tolerances. Beginners might need to consult manuals, forums, or professionals to ensure the correct setup, which could add time and complexity to the build.

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### **Conclusion:**

The ACL **8B1808A-.25 connecting rod set with a 25.000 journal and 0.010 overlay** is an excellent choice for **high-performance, modified, or heavily stressed engines** where durability, precision, and reduced friction are critical. Its premium construction, compatibility with a wide range of applications, and reliability make it a strong investment for enthusiasts pushing their engines beyond stock limits.

However, for **stock or mildly modified engines**, the cost may not be justified, and lower-cost alternatives could provide adequate performance without the premium price. Additionally, the customization options (like the 0.010 overlay) require some mechanical knowledge to implement correctly, which could be a drawback for inexperienced builders.

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### **Recommendation:** - **Buy if:**

- You re building or modifying a high-performance engine (e.g., forced induction, turbocharged, or high-RPM applications).

- You prioritize durability, reduced friction, and long-term reliability over cost savings.

- Your engine requires precise tolerances or custom clearances (e.g., 0.010 overlay for wear compensation).

- You have access to proper tools, lubrication, and installation guidance.

- **Consider alternatives if:**

- Your engine is stock or only mildly modified, and you re working within a tight budget.

- You lack experience with engine assembly and need simpler, more forgiving components.

- You re building a low-stress engine (e.g., a daily driver with minimal modifications).

For most **serious performance builds**, the ACL rod set is a **highly recommended upgrade** due to its quality and performance benefits. For casual or budget-conscious projects, research lower-cost options (e.g., other aftermarket brands like Clevite, INA, or OEM replacements) to balance cost and performance.

Details:

Connecting Rod Bearing Set.25mm / 0.010 in. American Express.

part #: 8b1808a25 prices

  • $31.99-$141.41

specifications pistonrinro:

  • brand: Acl Bearing
  • mpn: 8b1808a-.25
  • part type: Rod
  • country of origin: Mex
  • upc: 084777700349

offer pistonrinro:

  • sold: 0
  • availability: In Stock
  • started: May 20, 2026
  • quantity: 3
  • options: Ship-to-home

returns pistonrinro:

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

general pistonrinro:

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

shipping pistonrinro:

  • service: Standard
  • class: Standard
  • cost: $15.99
  • transit: 2-7 Days
  • type: Fixed

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seller pistonrinro:

  • # reviews: 630999
  • city: , Ohio
  • rating: 99.5%
part type: rod, country of origin: mex,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, sku: 13725085351602711,
Acl Bearing 8B1808A-.25 Is Similar To:
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3 offers $31.99–$141.41 USD
  • New. Offer #1 priced at $31.99 + $15.99 shipping estimate = $47.98* total. Connecting Rod Bearing Set, .25 mm / 0.010 in.+$15.99 shipping
  • New. Offer #2 priced at $141.41 + $0.00 shipping estimate = $141.41* total. Sealed Power Engine Connecting Rod Bearing Set.FREE SHIPPING
  • New. Offer #3 priced at $128.43 + $20.00 shipping estimate = $148.43* total. +$20.00 shipping

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