MAXPEEDINGRODS ON4VX0 Beam Rods Gm Air Cooled Engine Shot Peened 5.880 .867 4340 Arp Bolts

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: ON4VX0 ), ( Big End Bore Diameter: 53.97mm/2.125in ), ( Big End Width: 22.65mm/0.892in ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center To Center Length: 149.35mm/5.880in ), ( Fitment: For Gm Aircooled Engine ), ( Item Weight: 4.4 Lb ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Performance Part: Yes ), ( Pin End Bore Diameter: 22.01mm/0.867in ), ( Small End Width: 24.70mm/0.972in ), ( Type: Connecting Rod Set ), ( Vintage Part: No ), ( Country Of Origin: China )

Review MAXPEEDINGRODS 5.880 Inch .867 H beam Rods Gm Air Cooled Engine 4340 Shot peened Arp Bolts

The **Maxpeeding Rods ON4VX0 5.880" 867 H-Beam Rods** represent the pinnacle of performance engineering for GM s legendary air-cooled V8 engines, meticulously crafted to transform stock or mildly modified powerplants into a high-revving, high-torque powerhouse capable of withstanding extreme loads. Designed for the **4340 steel** block architecture found in classic engines like the **454 Big Block, 468 Super Chief, or 496 Big Block**, these rods are a masterclass in precision and durability, featuring a **5.880" bolt circle** and **867" center-to-center spacing** to ensure optimal crankshaft clearance and structural integrity. The **H-beam design** is a hallmark of Maxpeeding s philosophy, offering superior strength-to-weight ratio compared to traditional I-beam rods, with a **thick, reinforced web** that resists bending and fatigue under the most demanding conditions. Each rod is **shot-peened** to enhance surface hardness and eliminate stress risers, while the **ARP 12-point bolts** (included) provide a robust fastening solution, engineered to handle the extreme clamping forces generated by high-performance camshafts, forced induction, or aggressive nitrous setups. Whether you're chasing raw horsepower, building a street-strip monster, or restoring a vintage muscle machine, these rods deliver the uncompromising strength and reliability needed to push your engine to its limits without sacrificing longevity. Built to exacting standards and backed by Maxpeeding s reputation for innovation, these rods are not just an upgrade they re a foundation for building an engine that turns heads and turns heads on the dyno.

**Pros and Cons of Buying Maxpeedingrods ON4VX0 5.880 867 H-Beam Rods for GM Air-Cooled Engines (4340 Shot-Peened ARP Bolts)**

### **Pros**

1. **Strength and Durability** The 4340 steel used in these rods is known for its high tensile strength and fatigue resistance, making them suitable for high-performance applications. The shot-peening process enhances their fatigue life by inducing compressive stress on the surface, reducing the risk of failure under cyclic loading.

2. **Precision Engineering** H-beam design provides a strong, lightweight structure with optimized material distribution, reducing weight while maintaining rigidity. The 5.880-inch length and 867-inch diameter are likely engineered for specific applications, ensuring proper fitment and performance in GM air-cooled engines (such as those in vintage Corvettes, Camaros, or other muscle cars).

3. **ARP Bolt Compatibility** The inclusion of ARP bolts (or compatibility with them) suggests a focus on high-stress applications where standard bolts may not suffice. ARP bolts are widely trusted in racing and high-performance circles for their reliability under extreme loads.

4. **Aftermarket Support and Reputation** Maxpeedingrods is a well-regarded brand in the performance parts industry, known for producing high-quality, race-approved components. Their rods are often used in drag racing, street performance, and restoration projects where durability is critical.

5. **Potential for Increased Power Output** For engines running high compression ratios, forced induction, or aggressive camshafts, these rods can help prevent catastrophic failure by withstanding the increased stress. This allows for more aggressive tuning without compromising structural integrity.

6. **Long-Term Reliability** The combination of 4340 steel, shot-peening, and ARP bolt compatibility suggests these rods are built for longevity, even under demanding conditions. This can be particularly valuable for vintage or restored engines where replacement parts may be harder to source.

7. **Customization and Fitment** The specific part number (ON4VX0) implies these rods are designed for a particular application within GM air-cooled engines, reducing the risk of compatibility issues that might arise with generic rods.

---

### **Cons**

1. **Cost** High-performance rods like these are significantly more expensive than stock or aftermarket rods made from lower-grade materials (e.g., 1018 or 4130 steel). The cost may be prohibitive for casual enthusiasts or those on a tight budget, especially when factoring in additional components like ARP bolts or installation labor.

2. **Installation Complexity** Replacing rods in an engine is a labor-intensive process that often requires disassembly of the entire engine or at least the crankshaft area. This can be time-consuming and may require specialized tools or expertise, particularly for vintage engines where alignment and clearance are critical.

3. **Potential Overkill for Mild Applications** If the engine is running stock or mildly modified (e.g., mild cam, stock compression), these rods may offer little practical benefit beyond peace of mind. For such applications, less expensive rods (e.g., forged 4130 or 1018) might suffice without justifying the higher cost.

4. **Weight Considerations** While the H-beam design is lightweight relative to traditional I-beam rods, the overall weight of the crankshaft assembly may still increase compared to stock or lighter aftermarket rods. This could have minor impacts on drivability or engine balance, though the difference is often negligible in most applications.

5. **Availability and Lead Times** High-performance parts, especially those with specific part numbers, may have limited stock or longer lead times. This could delay a project if the rods are needed urgently.

6. **Compatibility Risks** Even with a specific part number, fitment can vary depending on the exact engine configuration (e.g., block casting variations, rod length requirements, or main bearing spacing). Thorough research or consultation with a mechanic may be necessary to avoid issues during installation.

7. **Maintenance and Storage** High-performance rods require careful handling to prevent damage (e.g., scratches, dents, or warping). They may also need to be stored in a dry environment to prevent rust, adding to the long-term maintenance burden.

---

### **Ending Conclusion**

The Maxpeedingrods ON4VX0 5.880 867 H-beam rods are an excellent choice for enthusiasts running GM air-cooled engines in high-performance, high-stress applications such as drag racing, forced induction builds, or aggressive street tuning. Their combination of 4340 steel, shot-peening, and ARP bolt compatibility makes them a reliable upgrade for those prioritizing durability and longevity. However, the high cost and complexity of installation may not justify the investment for mild modifications or stock applications.

For most **restoration projects** or **mildly modified engines**, these rods are overkill and may not offer a significant advantage over more affordable forged rods. They are best suited for **serious racers, high-performance street builds, or engines running extreme power levels** where failure is not an option.

---

### **Recommendation**

- You are running a **high-performance GM air-cooled engine** (e.g., 454/502 CID with forced induction, aggressive cams, or high compression).

- You prioritize **maximum reliability and longevity** over cost savings.

- You are building a **race engine** or a **high-stress street machine** where failure is unacceptable.

- You have the budget and are willing to invest in **premium components** for a project that demands them.

- Your engine is **stock or mildly modified**, in which case **forged 4130 or 1018 rods** (e.g., from brands like Eagle, JE, or ARP) may be sufficient.

- You are on a **tight budget** and can find equally strong rods at a lower cost (e.g., ARP s own rod-and-bolt kits or other reputable manufacturers).

- You are **restoring a vintage engine** where the primary goal is authenticity, and the extra strength may not be necessary.

- Pair these rods with a **high-quality crankshaft** (e.g., Eagle, JE, or ARP) to ensure the entire assembly is balanced and reliable.

- Consult with a **performance engine builder** to confirm fitment and compatibility with your specific engine configuration.

- Factor in **installation costs**, as professional labor for rod replacement can be significant.

In summary, these rods are a **top-tier choice for high-performance applications** but may not be the best value for every project. Weigh the cost against your engine s demands and long-term goals before purchasing.

Details:

Testing: , X-rated, Ultrasonically tested. Connecting Rod Bolt Brand: ARP. For GM Aircooled engine, for 1964 1969 Chevrolet Corsair 2.7L 164ci Flat 6 Engine. Beam Style: H-beam Street/Strip.

Manufacturer. Finish: Shot-peened. Performance Ratings. 5.880 .867 H-Beam Rods for GM Air Cooled Engine 4340 Shot-Peened ARP Bolts.

Material: 4340 Chorally Steel. Connecting Rod Bolt Diameter: 3/8. Wrist Pin Style: Floating. Cap Retention Style: Through-bolt.

Connecting Rod Bolt Material: Alloy Steel. Rod Cap Alignment: Precision dowels. Fast Shipping.guaranteed Fitment.

Clearances for Striker: Yes. CNC Machined: High Precision. Always the correct part. Weight Matched Set: Yes.

Quick, Simple. Remanufactured: No. Heat Treated: Yes.

part #: on4vx0 price

• $831.99

specifications pistonrinro:

• brand: Maxpeedingrods
• mpn: On4vx0
• big end bore diameter: 53.97mm/2.125in
• big end width: 22.65mm/0.892in
• california prop 65 warning: California Prop 65 Warning
• center to center length: 149.35mm/5.880in
• fitment: For Gm Aircooled Engine
• item weight: 4.4 Lb
• manufacturer warranty: 2 Years
• material: Steel
• performance part: Yes
• pin end bore diameter: 22.01mm/0.867in
• small end width: 24.70mm/0.972in
• type: Connecting Rod Set
• vintage part: No
• country of origin: China

payments pistonrinro:

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

offer pistonrinro:

• quantity: 1
• sold: 0
• best offers: True
• options: Ship-to-home
• availability: In Stock
• started: May 31, 2026

returns pistonrinro:

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

seller pistonrinro:

• rating: 99.4%
• city: Elk Grove Village, Illinois
• # reviews: 1466

shipping pistonrinro:

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

general pistonrinro:

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

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