MAXPEEDINGRODS CUY4HA Forged Connecting Rods Silvia Kit 4X 200SX S14 S15

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: CUY4HA ), ( Part Type: Rod ), ( Big End Diameter: 51mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center Length: 136.3mm ), ( 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 ), ( Quantity: 4 Pieces Balanced To / 1 Gram In Set ), ( Surface Finish: Extra Cost For Upgrading To Arp L19 Bolts ), ( Width: 22.8mm )

Review MAXPEEDINGRODS 4x Forged Connecting Rods Kit Nissan Silvia Sr20 S14 S15 fits SR20DET S13

The **Maxpeedingrods Cuy4HA 4x Forged Connecting Rods Kit** is a meticulously engineered upgrade designed to transform the performance, durability, and reliability of your Nissan Silvia (S13, S14, S15) or 200SX (SR20, SR20DET) engine into a high-revving, high-stress powerhouse. Crafted from **high-grade 4340 alloy steel**, these **forged connecting rods** are not only stronger than their cast counterparts but also significantly lighter, allowing for a more efficient power transfer and reduced reciprocating mass. This reduction in weight enables the engine to rev higher with greater smoothness, unlocking untapped potential in both naturally aspirated and forced-induction applications. The **4x configuration** ensures a balanced, symmetrical setup, which is critical for maintaining optimal piston-to-rod clearance and minimizing stress concentrations especially under extreme loads or high RPM scenarios. Each rod is **precision-machined** to exacting tolerances, featuring **fully counterweighted caps** and **high-strength ARP-style bolts** (included) that are pre-torqued to the manufacturer s specifications, ensuring a secure and repeatable assembly. Whether you're pushing the limits of a **turbocharged SR20DET** or fine-tuning a **supercharged or nitrous-injected SR20**, these rods provide the structural integrity needed to handle the increased cylinder pressures and torque without compromising on longevity. The kit is fully compatible with stock and aftermarket pistons, including those from brands like **JE, Scat, or Forged Racing**, making it a versatile choice for both stock and heavily modified engines. Backed by Maxpeedingrods reputation for quality and performance, this kit is an essential component for anyone serious about maximizing power, durability, and reliability in their Nissan performance engine.

**Pros and Cons of buying a Maxpeedingrods Cuy4HA 4x Forged Connecting Rods Kit for Nissan Silvia (200SX, SR20, SR20DET, S13, S14, S15)**

### **Pros**

1. **Superior Strength and Durability** Forged connecting rods are significantly stronger than cast rods, reducing the risk of failure under high stress, especially in forced induction or high-revving applications. This is critical for engines pushing beyond stock power levels, such as those with turbocharging or aggressive tuning.

2. **Reduced Weight** Forged rods are lighter than their cast counterparts, which can improve engine balance, reduce reciprocating mass, and potentially allow for higher RPM performance without excessive stress on the crankshaft or bearings.

3. **Compatibility with Aggressive Modifications** If you re running a heavily modified engine (e.g., big turbo, nitrous, or extreme forced induction), forged rods are a necessary upgrade to handle the increased loads. They re also beneficial for engines with oversized pistons or high-compression builds.

4. **Long-Term Reliability** Forged rods are less prone to fatigue failure, which is a common issue in cast rods under sustained high loads. This makes them ideal for high-mileage builds or engines that see heavy use.

5. **Precision Machining** Maxpeedingrods is known for high-quality machining, ensuring tight tolerances and consistent performance. The Cuy4HA rods are designed to work seamlessly with the SR20/SR20DET engine architecture.

6. **Support for High-Performance Applications** Whether you re building a daily driver with modest power gains or a high-revving race engine, forged rods provide a solid foundation for pushing limits without compromising reliability.

7. **Warranty and Customer Support** Maxpeedingrods offers warranties on their products, and their customer service is generally well-regarded in the tuning community, which adds peace of mind for serious builders.

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### **Cons**

1. **High Cost** Forged rods are significantly more expensive than cast rods. A full kit (four rods) from Maxpeedingrods will cost several hundred dollars, which can be a substantial investment, especially for a project car or a builder on a budget.

2. **Installation Complexity** Replacing connecting rods requires disassembling the engine, removing the crankshaft, and carefully installing the new rods with proper alignment and torque specifications. This is a labor-intensive process that may require professional help, adding to the overall cost.

3. **Not Necessary for Mild Builds** If you re only running a stock or mildly modified engine (e.g., stock turbo, minor tuning, or low-power forced induction), forged rods may be overkill. In such cases, a cast rod upgrade or reinforcing other components (e.g., crankshaft, bearings) might be sufficient.

4. **Potential for Overkill** Some builders may not fully utilize the strength of forged rods if other engine components (e.g., a weak crankshaft, inadequate oil supply, or improperly tuned fueling) limit power delivery. Forged rods alone won t compensate for systemic engine weaknesses.

5. **Limited Aftermarket Support** While Maxpeedingrods rods are high-quality, they may not be as widely supported as some other brands in terms of availability of replacement parts or third-party modifications (e.g., custom rod lengths or balancing).

6. **Time-Consuming Project** The process of removing the old rods, installing the new ones, and reassembling the engine can take several hours, depending on your experience level. This may not be ideal for those looking for quick, minor upgrades.

7. **Risk of Improper Installation** If not installed correctly (e.g., incorrect torque, misalignment, or improper gasket sealing), forged rods could lead to premature wear or failure. This risk underscores the importance of following installation guidelines meticulously.

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### **Conclusion**

The Maxpeedingrods Cuy4HA 4x forged connecting rods kit is one of the best upgrades you can make for a heavily modified SR20/SR20DET engine, particularly if you re pushing power levels beyond stock or stock-turbo limits. The strength, durability, and precision of forged rods make them indispensable for high-revving, forced-induction, or race-oriented builds. However, they are not a necessary upgrade for mild modifications or stock engines, where the cost and complexity may not justify the investment.

If you re building a **high-performance or race engine** especially one with turbocharging, nitrous, or aggressive tuning the Cuy4HA rods are a worthwhile investment. For **stock or mildly modified engines**, consider whether the expense is justified by your power goals. Always ensure that other critical components (crankshaft, bearings, oil system, fueling) are adequately upgraded to complement the rods.

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### **Recommendation**

- You re running a turbocharged SR20/SR20DET with significant power gains (e.g., 300 hp or more).

- You re building a high-revving engine (e.g., 8,000 RPM) or using nitrous.

- You ve already upgraded other critical components (crankshaft, bearings, oil pump, fueling) to support the increased loads.

- You re committed to long-term reliability and plan to push the engine hard for years.

- Your engine is stock or only mildly modified (e.g., stock turbo, minor tuning).

- You re on a tight budget and can achieve your power goals with less expensive upgrades (e.g., cast rods, reinforced crankshaft).

- You re not experienced with engine disassembly/reassembly and cannot ensure proper installation.

For most **serious SR20/SR20DET builders** aiming for serious power, the Cuy4HA rods are a **highly recommended upgrade** but only as part of a comprehensive engine build. Pair them with a quality crankshaft, bearings, and proper supporting modifications to maximize reliability and performance.

Details:

Fast Shipping. Shot-preened finish to remove potential for stress risers, 6.High precision CNC machined,Precision rod cap alignment dowels, 7.Bores finished /- .005mm, 8.Balanced within 1per rod, 9. Advertised Horsepower Rating:200HP/piece, Top acceleration: 9000rpm, package size 28CM 21CM 10CM. 4x Forged Connecting Rods Kit for Nissan Silvia 200SX SR20 SR20DET S13 S14 S15.

G guaranteed Fitment. V PRODUCT TEST AND ISO 9001 CERTIFIED, Always the correct part. Manufacturer.

Quick, Simple.

part #: cuy4ha prices

• $232.00-$389.99

specifications pistonrinro:

• for models: Sr20det, S13
• for makes: Nissan
• brand: Maxpeedingrods
• mpn: Cuy4ha
• part type: Rod
• big end diameter: 51mm
• california prop 65 warning: California Prop 65 Warning
• center length: 136.3mm
• 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
• quantity: 4 Pieces Balanced To / 1 Gram In Set
• surface finish: Extra Cost For Upgrading To Arp L19 Bolts
• width: 22.8mm

general pistonrinro:

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

seller pistonrinro:

• rating: 98.5%
• city: Elk Grove Village, Illinois
• # reviews: 1137

payments pistonrinro:

• other
• wallet: Paypal
• credit card: Discover

returns pistonrinro:

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

offer pistonrinro:

• quantity: 4
• options: Ship-to-home
• started: March 11, 2026
• sold: 0
• availability: In Stock
• best offers: True

shipping pistonrinro:

• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00
• class: Standard
• type: Fixed
• carrier: FedEx
• transit: 3-7 Days

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