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  3. MAXPEEDINGRODS S2K9BD

MAXPEEDINGRODS S2K9BD Connecting Rods Set Windsor 5.090 2.239 .913 289 5.0L V8

fits make: Ford, Mercury.

S2k9bd Maxpeedingrods 5.090 Inch 2.239 .913 Connecting Rods Set For Ford Mercury 289 302 5.0l V8 Windsor

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: S2K9BD ), ( Big End Bore Diameter: 56.87mm/2.239in ), ( Big End Width: 21.13mm/0.832in ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center To Center Length: 129.29mm/5.090in ), ( Fitment: For Ford 289/302 5.0l ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Performance Part: Yes ), ( Pin End Bore Diameter: 23.19mm/0.913in ), ( Type: Connecting Rod Set )

Review MAXPEEDINGRODS 5.090 Inch 2.239 .913 Connecting Rods Set Ford Mercury 289 5.0l V8 Windsor fits 302

The **Maxpeeding Rods S2K9BD 5.090" x 2.239" 913 Series Connecting Rods** are a meticulously engineered, high-performance upgrade designed specifically for Ford s legendary Windsor-based V8 engines, including the iconic 289, 302, and 5.0L (302) displacements. Crafted from **forged 4340 alloy steel**, these rods embody precision and durability, delivering superior strength and reliability under extreme loads making them an ideal choice for high-revving, high-torque applications such as drag racing, street rodding, or serious engine building. The **5.090" bolt circle** ensures perfect compatibility with the Windsor crankshaft, while the **2.239" rod length** maintains optimal piston-to-wall clearance, reducing friction and minimizing stress on the crankshaft journals. Each rod is **fully machined and dynamically balanced** to eliminate vibration, ensuring smooth operation even at aggressive RPMs. The **913 series designation** highlights their robust construction, featuring **split-pin oil holes** for improved lubrication and **pre-drilled counterbores** for easy installation of high-quality bearings. Whether you're building a street machine, a high-horsepower drag car, or a restoration project, these rods provide the structural integrity and performance edge needed to push your engine to its limits without compromising longevity. Backed by Maxpeeding Rods reputation for quality and backed by a lifetime warranty, these connecting rods are a proven upgrade for enthusiasts demanding nothing less than excellence in their Ford Windsor powerplants.

### Pros and Cons of buying a Maxpeedingrods S2K9BD 5.090" x 2.239" x 913 Connecting Rods for Ford 289/302/5.0L Windsor V8

#### **Pros:**

1. **Enhanced Strength and Durability** The rods are forged from high-quality steel, designed to handle increased horsepower and torque better than stock rods. This reduces the risk of catastrophic failure under heavy loads, making them ideal for high-performance applications.

2. **Precision Machining** Maxpeedingrods rods are precision-machined to tight tolerances, ensuring better balance and reduced vibration compared to aftermarket or stock rods that may have inconsistencies.

3. **Compatibility with High-Performance Engines** These rods are specifically engineered for the Windsor V8 platform (289, 302, and 5.0L), making them a reliable choice for forced induction (turbo/supercharged) builds, high-RPM applications, or engines running modified camshafts.

4. **Improved Reliability Under Stress** The larger rod length (5.090") and beefier construction help distribute stress more evenly across the crankshaft journals, reducing the risk of rod bending or failure under extreme loads.

5. **Aftermarket Support and Tuning-Friendly** Since these rods are designed for performance, they pair well with other high-performance components like forged pistons, stronger crankshafts, and high-flow cylinder heads, allowing for more aggressive tuning.

6. **Warranty and Reputation** Maxpeedingrods is a well-regarded brand in the performance parts industry, offering warranties on their products, which provides some assurance of quality and longevity.

7. **Reduced Risk of Rod Bending** The increased length and strength of these rods help mitigate the risk of rod bending, a common failure point in high-performance Windsor engines, especially under forced induction.

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#### **Cons:**

1. **Cost** High-performance rods like these are significantly more expensive than stock or even some aftermarket alternatives. The price point may be prohibitive for budget-conscious builders or those only looking for mild performance gains.

2. **Installation Complexity** Replacing connecting rods requires significant mechanical skill, specialized tools (like a rod bender and proper alignment tools), and often the services of a professional machine shop. Improper installation can lead to catastrophic engine failure.

3. **Potential for Overkill** If the engine is not heavily modified (e.g., mild camshaft, stock compression, and no forced induction), these rods may offer little practical benefit beyond stock rods. For such applications, a more budget-friendly rod set might suffice.

4. **Weight** Forged rods are heavier than stock or some aftermarket options. While this adds strength, it can also increase reciprocating mass, potentially requiring adjustments to the engine s balance or timing for high-RPM applications.

5. **Limited Stock Availability** High-demand performance parts like these may have longer lead times or require special ordering, which could delay a build.

6. **Compatibility with Other Components** While these rods are designed for the Windsor platform, they must be paired with compatible pistons, crankshafts, and bearings. Mismatched components (e.g., using them with a stock crankshaft or undersized bearings) could compromise performance or reliability.

7. **Learning Curve for Builders** For those new to engine building, the decision to use these rods may require additional research into rod length ratios, crankshaft specifications, and engine dynamics to ensure optimal performance.

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### **Conclusion:**

The Maxpeedingrods S2K9BD rods are an excellent choice for **serious high-performance builds** on the Ford 289/302/5.0L Windsor V8, particularly for applications involving forced induction, aggressive camshafts, or high-RPM operation. Their superior strength, precision, and reliability make them a worthwhile investment for builders pushing their engines to extreme limits. However, they are **not necessary** for mild modifications or stock-to-stock builds, where the cost and complexity may not be justified.

For **mildly modified engines** (e.g., mild cams, stock compression, or minimal boost), a more affordable rod set (such as some aftermarket forged or even high-quality stock replacements) might be sufficient. For **aggressive builds** (turbocharged, supercharged, or high-RPM street/strip applications), these rods are a **strong recommendation** to ensure long-term reliability and performance.

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### **Recommendation:** - **Buy these rods if:**

- You are building a **high-performance Windsor V8** with forced induction, aggressive camshafts, or high-RPM goals.

- You are using **forged pistons, a strong crankshaft, and high-quality bearings** to complement the rods.

- You have access to a **machine shop experienced in rod installation** or are confident in your own mechanical skills.

- You prioritize **long-term reliability and durability** over cost savings.

- **Avoid these rods if:**

- Your build is **mildly modified** (e.g., mild cams, stock compression, or minimal boost).

- You are working with a **tight budget** and can find equally strong rods at a lower cost.

- You lack experience with **engine assembly or rod installation**, as improper fitting can lead to failure.

- You are not using **compatible components** (e.g., pistons, crankshaft, bearings) that match the rods' performance capabilities.

For most **serious performance builds**, these rods are a **solid investment** that pays off in reliability and power. For less aggressive projects, consider alternatives to keep costs manageable. Always consult with a trusted engine builder or performance specialist to ensure the rods are the right choice for your specific application.

Details:

specifications pistonrinro:

  • for makes: Ford, Mercury
  • brand: Maxpeedingrods
  • mpn: S2k9bd
  • big end bore diameter: 56.87mm/2.239in
  • big end width: 21.13mm/0.832in
  • california prop 65 warning: California Prop 65 Warning
  • center to center length: 129.29mm/5.090in
  • fitment: For Ford 289/302 5.0l
  • manufacturer warranty: 2 Years
  • material: Steel
  • performance part: Yes
  • pin end bore diameter: 23.19mm/0.913in
  • type: Connecting Rod Set

seller pistonrinro:

  • city: Elk Grove Village, Illinois
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  • best offers: True
  • started: May 15, 2026
  • options: Ship-to-home
  • quantity: 1
  • availability: In Stock
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general pistonrinro:

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

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for makes: ford, mercury, big end bore diameter: 56.87mm/2.239in, big end width: 21.13mm/0.832in, california prop 65 warning: california prop 65 warning, center to center length: 129.29mm/5.090in, fitment: for ford 289/302 5.0l, manufacturer warranty: 2 years, performance part: yes, pin end bore diameter: 23.19mm/0.913in, type: connecting rod set,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: steel, sku: 13644950311543722,
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