1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 13554765623382813
  3. MAXPEEDINGRODS 8QN9B4

MAXPEEDINGRODS 8QN9B4 Beam Connecting Rods Block 8X V8 5.700 2.100 .927

fits model: 700. make: Chevy.

8qn9b4 Maxpeedingrods 8x H-beam Connecting Rods For Chevy Small Block V8 Sbc 5.700 Inch 2.100 .927

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 8QN9B4 ), ( Big End Diameter: 56.515mm/2.225 ), ( Big End Width: 23.9mm/0.941 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center To Center Length: 144.78mm/5.7 ), ( Country Of Origin: China ), ( Horse Power: 200hp/piece ), ( Important Notice: Package Included, Professional Installation Required ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Quality: T V Certification Connecting Rods Conrods ), ( Reference Oe Number: For Motors / For Chevrolet Ls-series V8 Engine ), ( Small End Diameter: 23.55mm/0.927 ), ( Small End Width: 25.65mm/1.01 ), ( Type: Connecting Rods ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS 8x H beam Connecting Rods Chevy Small Block V8 Sbc 5.700 Inch 2.100 .927 fits 700

The **Maxpeeding Rods 8QN9B4 8x H-Beam Connecting Rods** represent the pinnacle of performance engineering for the iconic Chevy LS-based V8 engines, specifically tailored for the 5.7L (345 cubic inch) and 6.2L (376 cubic inch) displacement variants, including the legendary 927cc (2.100-inch stroke) configurations. These rods are meticulously crafted from **8620 chromoly steel**, a material renowned for its exceptional strength-to-weight ratio, ensuring durability under extreme loads while minimizing reciprocating mass for improved engine efficiency. The **8x (8-bolt) design** enhances rigidity and torsional stiffness, significantly reducing rod deflection and enhancing power delivery across the entire RPM spectrum, from low-end torque to high-revving performance. The **H-beam cross-section** is a hallmark of Maxpeeding Rods engineering philosophy, offering superior strength in all directions while maintaining a compact profile that optimizes piston-to-wall clearance and minimizes friction. Each rod is **forged and precision-machined** to exacting tolerances, featuring **fully counterweighted caps** for balanced operation and **high-strength ARP-style bolts** (included) that eliminate the need for aftermarket hardware, ensuring a seamless, high-performance assembly. These rods are engineered to handle the most demanding applications, from high-horsepower street engines to aggressive drag racing setups, while also accommodating aftermarket pistons with up to a **2.100-inch stroke** ideal for builders pushing the limits of displacement and power output. Whether paired with a forged crankshaft, high-performance camshaft, or supercharged/intake manifold setup, the 8QN9B4 rods deliver uncompromising strength, reliability, and performance, making them a cornerstone for any serious LS-based engine build.

### **Pros and Cons of Buying Maxpeedingrods 8QN9B4 8x H-Beam Connecting Rods for a Chevy V8 (5.7L/2.100" Stroke, 927 Series Block)**

#### **Pros:**

1. **Strength and Durability** The 8x H-beam design provides superior strength compared to traditional I-beam rods, reducing the risk of catastrophic failure under high stress. This is particularly beneficial for forced induction builds, high-RPM applications, or heavy-duty street/strip use.

2. **Lightweight Construction** While still strong, H-beam rods are often lighter than forged I-beams, improving crankshaft balance and reducing reciprocating mass. This can enhance engine efficiency and responsiveness, especially in high-performance applications.

3. **Precision Machining and Balancing** Maxpeedingrods rods are CNC-machined and dynamically balanced, ensuring consistent performance and longevity. This attention to detail helps prevent vibration-related wear on the crankshaft and bearings.

4. **Compatibility with High-Performance Applications** These rods are designed to handle extreme loads, making them suitable for turbocharged, supercharged, or nitrous-injected engines. They can also support high-RPM applications (e.g., 8,000 RPM) without excessive stress.

5. **Aftermarket Support and Customization** Maxpeedingrods offers rods that can be paired with other high-performance components (e.g., forged pistons, billet cranks) for a fully upgraded engine. They also provide options for different rod lengths if needed.

6. **Warranty and Reputation** Maxpeedingrods is a well-regarded brand in the aftermarket, offering warranties on their products. Their rods are often used in professional racing and high-end street builds, indicating reliability.

7. **Reduced Rod Bolt Stress** The H-beam design distributes stress more evenly across the rod, potentially reducing the need for ultra-high-strength rod bolts (though proper bolt selection is still critical).

---

#### **Cons:**

1. **Cost** High-performance rods like these are significantly more expensive than OEM or basic aftermarket rods. For a 5.7L Chevy V8, the price can range well into the hundreds of dollars per rod set, depending on quantity and options.

2. **Installation Complexity** Rebuilding an engine with these rods requires careful attention to assembly, including proper bearing clearance, rod bolt torque, and crankshaft alignment. Improper installation can void warranties or lead to premature failure.

3. **Limited Stock Availability** Specialty rods like these may not be as widely stocked as OEM or common aftermarket parts. Purchasing may require ordering from a specific supplier, which could involve longer lead times.

4. **Potential Overkill for Mild Builds** If your engine is a stock or mildly modified street engine (e.g., 300 400 hp naturally aspirated), these rods may be more expensive than necessary. For such applications, a high-quality forged I-beam rod (e.g., ARP, JE) might suffice.

5. **Rod Bolt Requirements** While H-beam rods reduce stress on bolts, they still require high-quality rod bolts (e.g., ARP, Mann, or similar) to prevent failure. This adds to the overall cost and complexity of the build.

6. **Maintenance and Inspection Needs** High-performance rods demand regular inspection for cracks, wear, or fatigue. In a heavily modified engine, this may require more frequent teardowns or specialized diagnostics.

7. **Potential Learning Curve** If you re not experienced with engine rebuilding, working with these rods may require additional research or professional assistance to ensure proper installation and setup.

---

### **Conclusion and Recommendation**

The **Maxpeedingrods 8QN9B4 8x H-beam rods** are an excellent choice for **high-performance Chevy V8 applications**, particularly those involving forced induction, high RPM, or extreme power outputs (e.g., 500 hp or more). Their strength, lightweight design, and precision engineering make them ideal for **racing, street/strip builds, or engines pushing beyond stock limits**.

However, for **stock or mildly modified engines (under 400 hp naturally aspirated)**, these rods may be **overkill and unnecessarily expensive**. In such cases, a **high-quality forged I-beam rod** (e.g., ARP, JE, or similar) would offer a better balance of cost and performance.

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

- Your engine is **turbocharged, supercharged, or nitrous-injected**.

- You re running **high RPMs (7,000 )** or extreme power levels (500 hp).

- You re building a **competition or high-performance street engine** and want the best possible durability.

- You re pairing them with **forged pistons, a billet crank, and high-quality rod bolts** for a full upgrade.

- **Consider alternatives if:**

- Your engine is **stock or mildly modified** (under 400 hp naturally aspirated).

- You re on a **tighter budget** and can achieve similar results with a **forged I-beam rod** from a reputable manufacturer.

- You re not experienced with **high-performance engine assembly** and need simpler, more forgiving rods.

**Final Note:** Always pair these rods with **proper pistons, bearings, and rod bolts** (e.g., ARP or Mann) to maximize their effectiveness. Consult with a **reputable machine shop or engine builder** if you re unsure about installation or compatibility.

Details:

YLLUR 8x H-Beam Connecting Rods For Chevy Small block V8 SBC 5.700 2.100 .927. Horsepower Rating: Advertised horsepower rating: 600HP-800HP. One Year Unlimited Mileage Quality Guarantee. Bores finished to: /- .005mm or .0002.

High Precision Control: Balanced within: /- 1 gram per rod. Beam Type H-Beam. Boxes, APO/FPO addresses, or Military Mail Boxes. H-Beam Design: helps improve stiffness, reduce stress risers and weight.

Application For Chevy LS Series Small Block. Our representatives will provide you with detailed instructions on how to proceed.

part #: 8qn9b4 price

  • $477.59

specifications pistonrinro:

  • for models: 700
  • for makes: Chevy
  • brand: Maxpeedingrods
  • mpn: 8qn9b4
  • big end diameter: 56.515mm/2.225
  • big end width: 23.9mm/0.941
  • california prop 65 warning: California Prop 65 Warning
  • center to center length: 144.78mm/5.7
  • country of origin: China
  • horse power: 200hp/piece
  • important notice: Package Included, Professional Installation Required
  • manufacturer warranty: 2 Years
  • material: Steel
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part.
  • quality: T V Certification Connecting Rods Conrods
  • reference oe number: For Motors / For Chevrolet Ls-series V8 Engine
  • small end diameter: 23.55mm/0.927
  • small end width: 25.65mm/1.01
  • type: Connecting Rods
  • weight tolerance: Balanced To / 1 Gram In Set

shipping pistonrinro:

  • service: UPS Ground
  • transit: 3-6 Days
  • cost: $0.00
  • carrier: UPS
  • type: Fixed
  • class: Standard

returns pistonrinro:

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

general pistonrinro:

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

seller pistonrinro:

  • rating: 99.2%
  • # reviews: 1263
  • city: Dayton, New Jersey

offer pistonrinro:

  • sold: 0
  • best offers: True
  • started: May 11, 2026
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1

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  • other
for models: 700, for makes: chevy, big end diameter: 56.515mm/2.225, big end width: 23.9mm/0.941, california prop 65 warning: california prop 65 warning, center to center length: 144.78mm/5.7, country of origin: china, horse power: 200hp/piece, important notice: package included, professional installation required, manufacturer warranty: 2 years, note: no instruction included, notice: this is aftermarket replcement part., quality: t v certification connecting rods conrods, reference oe number: for motors / for chevrolet ls-series v8 engine, small end diameter: 23.55mm/0.927, small end width: 25.65mm/1.01, type: connecting rods, weight tolerance: balanced to / 1 gram in set,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: steel, sku: 13554765623382813,
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  • New. Offer #1 priced at $477.59 + $0.00 shipping estimate = $477.59* total. I-Beam Connecting Rods For VW Audi A3 1.8 20vT AGU/ARZ/ARX/AUM 1996 2003 5.669". For Motors for GMC for Chevrolet - LS Series V8 engine.FREE SHIPPING

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