CP-CARRILLO SCR4230 Pro Connecting Rod Set 3/8 SR20

( Brand: Cp-carrillo ), ( Manufacturer Part Number: SCR4230 ), ( Type: Connecting Rod )

Review CP CARRILLO Pro h 3/8 Connecting Rod Set Nissan

The **CP-Carrillo SCRA230 Pro-H 3/8" Connecting Rod Set** is a premium, high-performance aftermarket solution meticulously engineered to elevate the durability, reliability, and power output of your **Nissan SR20** engine. Designed with precision and built to exacting standards, this forged steel rod set is a direct replacement for the stock OEM rods, offering superior strength and resistance to fatigue critical components for engines subjected to aggressive driving, forced induction, or high-revving applications. Each rod in this set is crafted from **4340 alloy steel**, a material renowned for its exceptional tensile strength and ability to withstand extreme stress without warping or cracking, ensuring longevity even under the most demanding conditions. The **3/8" diameter** is optimized for the SR20 s specific requirements, providing an ideal balance between strength and weight, while the **Pro-H** designation signifies a heat-treated process that enhances hardness and wear resistance, reducing the risk of premature failure. The rods feature **CP-Carrillo s proprietary design**, incorporating refined fillets and optimized wall thickness to minimize stress concentrations and improve fatigue life, making them a favored choice among tuners and performance enthusiasts. Whether you're building a **turbocharged, supercharged, or naturally aspirated** SR20 for track use, drifting, or daily driving, this connecting rod set delivers the robustness needed to handle elevated power levels without compromising on safety. Backed by CP-Carrillo s reputation for quality and backed by rigorous testing, this set is an investment in your engine s future, ensuring it can push beyond factory limits while maintaining structural integrity. Perfect for those seeking a reliable upgrade over stock rods, the **SCRA230 Pro-H** is a testament to CP-Carrillo s commitment to performance engineering, offering a seamless fit and peace of mind for SR20 builders and racers alike.

### **Pros and Cons of buying a CP-Carrillo SC-R4230 Pro-H 3/8" Connecting Rod Set for Nissan SR20**

1. **High-Quality Materials** CP-Carrillo is a well-respected brand known for using forged steel and precision machining, which enhances durability and strength compared to stock or aftermarket rods that may be cast or lower-grade forged.

2. **Balanced Weight** The 3/8" wall thickness strikes a balance between strength and weight reduction, improving engine balance and reducing reciprocating mass, which can help with high RPM performance and longevity.

3. **Precision Fitment** Designed specifically for the Nissan SR20 engine, these rods are engineered to match the stock rod journal size and bolt pattern, ensuring proper alignment and minimizing stress on the crankshaft and bearings.

4. **Improved Strength** The Pro-H series is designed for high-performance applications, offering better fatigue resistance than stock rods, which can be a concern in forced induction or high-RPM applications.

5. **Compatibility with Upgrades** Works well with other performance parts like forged pistons, upgraded crankshafts, and high-flow oil pumps, making it a versatile choice for builders looking to push their SR20 beyond stock limits.

6. **Warranty Support** CP-Carrillo offers warranties on their products, providing peace of mind against manufacturing defects.

7. **Aftermarket Reputation** Many SR20 builders and tuners trust CP-Carrillo for critical components like connecting rods, suggesting reliability in real-world applications.

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1. **Cost** High-quality forged rods are significantly more expensive than stock or budget aftermarket options. For an SR20, this can be a substantial investment, especially if replacing all four rods.

2. **Installation Complexity** Replacing connecting rods requires disassembly of the engine, including removing the crankshaft, pistons, and bearings. This is a labor-intensive process that may require professional help, adding to the overall cost.

3. **Potential Overkill for Stock or Mild Builds** If the engine is only being used for light daily driving or mild tuning (e.g., stock compression, no forced induction), the benefits of these rods may not be fully realized. Stock rods can last indefinitely with proper maintenance in such applications.

4. **Compatibility with Non-Standard Engines** If the SR20 has been heavily modified (e.g., oversized crankshaft, custom pistons, or aggressive camshafts), these rods may not be the optimal choice without further analysis. Always verify clearances with the specific setup.

5. **Limited Availability** As a specialized part, these rods may not be as widely stocked as more common aftermarket components, potentially requiring ordering from a specific supplier.

6. **Risk of Improper Installation** If not installed correctly (e.g., incorrect torque, misalignment, or damaged rod bolts), the rods could fail catastrophically. This risk underscores the importance of following manufacturer guidelines or consulting a professional.

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The CP-Carrillo SC-R4230 Pro-H 3/8" connecting rod set is an excellent choice for **high-performance SR20 builds**, particularly those involving forced induction, aggressive camshafts, or high-RPM applications. The improved strength, precision fitment, and balanced weight make it a reliable upgrade for builders pushing their engines beyond stock limits. However, for **stock or mildly modified engines**, the cost and complexity may not justify the investment, as stock rods can suffice with proper maintenance.

If you are planning a **serious performance project** (e.g., turbocharged, nitrous, or high-revving applications), these rods are a strong recommendation. For **casual or stock-oriented builds**, consider whether the benefits outweigh the cost before purchasing.

- **Buy if:** You are building a high-performance SR20 (turbocharged, supercharged, or high-RPM application) and want the best possible durability and strength for your rods.

- **Skip if:** Your engine is stock or mildly modified, and you are on a budget. In such cases, stock rods or a lower-cost forged rod set (e.g., JE, Scat) may be sufficient.

- **Always verify:** Clearances with your specific piston and crankshaft setup, and ensure installation is done correctly to avoid failure. Consult with a trusted mechanic or performance specialist if unsure.

Details:

Center to Center: 5.364. Brand: CP-Carrillo. Bolt Size: 3/8. CP-Carrillo ensures strength and durability of each Carrillo rod.

CP-Carrillo Pro-H 3/8 Connecting Rod Set for Nissan SR20 SCR4230. Beam Type: H-Beam. Carrillo H-Beam and Pro Series designs offer the highest strength to weight ration as possible. Consistent and reliable from the first point of precision manufacturing all way to extreme uses in racing world.

Bolt Type: CARR. New Template. Shipping Information. Manufacturer Part Number: SCR4230.

part #: scr4230 prices

• $1156.18-$1315.75

specifications pistonrinro:

• for makes: Nissan
• brand: Cp-carrillo
• mpn: Scr4230
• type: Connecting Rod

payments pistonrinro:

• wallet: Paypal
• credit card: Visa
• other

shipping pistonrinro:

• service: USPS Ground Advantage
• type: Calculated
• carrier: USPS
• cost: $24.10
• transit: 4-9 Days
• class: Standard

offer pistonrinro:

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

seller pistonrinro:

• # reviews: 10168
• city: Las Vegas, Nevada
• rating: 99.0%

returns pistonrinro:

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

general pistonrinro:

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

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