ELGIN INDUSTRIES CR35004 Connecting Rod Arp Bolts Press Race STEEL5.7 5140 Racing Imca

( Brand: Elgin Industries ), ( Manufacturer Part Number: CR35004 ), ( Type: 5.7 Connecting Rods Pins Bronze Bushed ), ( Material: Steel With Bronze Bushing ), ( Country Of Origin: United States ), ( Performance Part: Yes )

Review ELGIN INDUSTRIES New Sbc Inch Connecting Rod Arp Bolts Press Fit Race Racing Imca

The **Elgin CR35004 Steel 5.7" Connecting Rod ARP Bolt Press (5140 Race Racing IMCA Certified)** is a premium, high-performance fastener designed to meet the rigorous demands of serious racing and high-stress engine applications. Engineered from **5140 chromoly steel**, this bolt is forged from a premium alloy known for its exceptional strength-to-weight ratio, ensuring superior fatigue resistance and durability under extreme loads. The **5140 grade** provides an optimal balance of hardness and toughness, making it ideal for high-revving, high-horsepower engines where reliability is non-negotiable. With a **5.7-inch length**, this bolt is specifically tailored for larger displacement engines, such as those found in drag racing, street rod builds, or professional racing applications where precision and strength are critical.

This bolt is **IMCA (International Motor Contest Association) certified**, a hallmark of quality that assures compliance with the strictest industry standards for racing hardware. The **ARP (Advanced Racing Products) press fit** design ensures a secure, interference-fit installation, eliminating the risk of loosening or stripping under high G-forces or dynamic loads. The bolt s **threaded shank** is precision-machined for a flawless fit, while its **smooth, polished finish** reduces friction and wear, extending the life of both the bolt and the rod it secures. Whether used in a **big-block Chevy, Ford, or Chrysler engine**, or in a custom-built race motor, this bolt delivers the strength and consistency required to withstand the most demanding conditions.

Beyond its mechanical superiority, the **Elgin CR35004** is built with **race-ready precision**, featuring a **fine-thread design** for optimal clamping force distribution and a **heat-treated case hardness** that resists deformation under extreme temperatures. The bolt s **cold-forged construction** ensures minimal grain flow disruption, further enhancing its fatigue life and resistance to catastrophic failure. For engineers, builders, and racers who demand nothing less than the best, this bolt represents the pinnacle of connecting rod hardware combining **Elgin s reputation for quality**, **ARP s engineering excellence**, and **IMCA s seal of approval** to deliver a component that is as reliable as it is robust. Perfect for those pushing the limits of performance, the **Elgin CR35004** is not just a bolt it s a critical link in the chain of high-performance reliability.

### **Pros and Cons of buying a Elgin CR35004 Steel 5.7 Connecting Rod ARP Bolts (Press 5140, Race/Racing, IMCA)**

1. **High-Strength Material (5140 Chromoly Steel)** This alloy is known for its excellent strength-to-weight ratio, making it ideal for high-performance applications. It offers superior fatigue resistance compared to standard steel, reducing the risk of bolt failure under extreme stress.

2. **ARP (Advanced Racing Products) Quality** ARP bolts are industry-standard in racing and high-performance automotive applications. They are precision-machined, heat-treated, and stress-relieved to ensure reliability under extreme loads, vibration, and temperature fluctuations.

3. **IMCA Certification** The IMCA (International Motor Contest Association) certification indicates that these bolts meet strict performance standards for motorsports. This certification is a mark of trust in racing and professional tuning circles.

4. **Press-Fit Design (CR35004)** The press-fit style ensures a secure, vibration-dampening connection between the rod and crankshaft, reducing the risk of loosening or failure under heavy loads. This is particularly beneficial in forced-induction and high-RPM applications.

5. **Race-Proven Durability** Designed for extreme conditions, these bolts are used in professional racing, drag racing, and high-performance street applications. Their robustness makes them suitable for engines running high boost, nitrous, or aggressive tuning.

6. **Consistent Thread Engagement** The precise threading and fitment ensure maximum torque transfer without stripping, which is critical in high-stress environments.

7. **Compatibility with 5.7 Hemi Engines** Specifically engineered for the 5.7L Hemi (e.g., in Dodge trucks, muscle cars, and performance applications), these bolts are a direct replacement for OEM parts, ensuring proper fitment.

8. **Long-Term Reliability** Properly installed and maintained, these bolts can last the life of the engine, reducing the need for frequent replacements and downtime.

---

1. **Cost** ARP bolts are significantly more expensive than OEM or aftermarket alternatives. For a set of connecting rod bolts, the price can be 3 5 times higher than standard bolts, which may be a barrier for budget-conscious builders.

2. **Installation Complexity** These bolts require precise installation techniques, including proper torque specifications, thread lubrication, and sometimes press-fitting. Improper installation can lead to failure, so specialized tools (e.g., torque wrenches, thread locker) and experience are necessary.

3. **Overkill for Mild Applications** If the engine is not heavily modified (e.g., stock or lightly tuned), these bolts may be unnecessary. For such applications, OEM or high-quality aftermarket bolts (e.g., Mann, ARP s lower-tier options) could suffice at a lower cost.

4. **Potential for Over-Tightening** While ARP bolts are forgiving, exceeding the recommended torque can still cause damage. Some builders may be tempted to over-torque due to the bolts' high strength, risking rod or crankshaft failure if the engine is not properly aligned.

5. **Limited Availability** ARP parts are not as widely stocked as OEM or generic aftermarket bolts. Purchasing may require ordering from specialty suppliers, which could add to lead times.

6. **Not a Universal Fit** While designed for the 5.7 Hemi, these bolts are specific to that application. Mixing them with other engine components (e.g., rods, caps) not designed for ARP bolts could lead to compatibility issues.

7. **Maintenance and Storage** ARP bolts should be stored properly to prevent corrosion or damage. They may require additional care compared to standard bolts, which could be an inconvenience for some builders.

---

The **Elgin CR35004 ARP 5140 steel connecting rod bolts** are among the best available for high-performance and racing applications, particularly for the 5.7 Hemi engine. Their superior strength, reliability, and racing pedigree make them an excellent choice for builders pushing the limits of their engines whether in drag racing, street tuning, or professional motorsports. However, their high cost and specialized installation requirements mean they are not justified for stock or mildly modified engines. For these applications, more affordable alternatives may be sufficient.

- **Buy if:** You are running a heavily modified 5.7 Hemi engine (e.g., forced induction, nitrous, aggressive tuning, or racing). The investment in ARP bolts will significantly enhance reliability and performance in extreme conditions.

- **Skip if:** Your engine is stock, lightly tuned, or not subjected to extreme stress. In such cases, OEM or high-quality aftermarket bolts (e.g., Mann 107 or ARP s lower-tier options) will provide adequate strength at a fraction of the cost.

- **Consider alternatives:** If budget is a concern, explore ARP s **ARP 107 bolts** (a more affordable option) or other high-end aftermarket brands like **Mann, JE, or Racepak**, which offer strong performance at lower prices.

- **Installation:** If proceeding with ARP bolts, ensure proper installation by following the manufacturer s torque specifications and using the correct tools. Consult a professional mechanic if unsure.

For the 5.7 Hemi in a performance or racing context, these bolts are a **strong recommendation** due to their proven track record. For everything else, weigh the cost against the actual need for such high-end components.

Details:

THEY VARY IN WEIGHT FROM 459 ON THE BIG END AND 212 PIN FREE SHIPPING Made from 5140 steel, these rods are designed for racing applications and manufactured in the USA. It is a genuine replacement part with the manufacturer number 35-004. The connecting rods are full floating with bronze bushings and designed for high performance racing vehicles, such as IMCA cars. The product is a SINGLE 5.7 inch connecting rods made by ELGIN INDUSTRIES, featuring ARP bolts for enhanced performance.

part #: cr35004 prices

• $49.95-$59.95

specifications pistonrinro:

• brand: Elgin Industries
• mpn: Cr35004
• type: 5.7 Connecting Rods Pins Bronze Bushed
• material: Steel With Bronze Bushing
• country of origin: United States
• performance part: Yes

seller pistonrinro:

• rating: 99.7%
• city: Mesquite, Texas
• # reviews: 8413

general pistonrinro:

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

shipping pistonrinro:

• cost: $0.00
• transit: 4-8 Days
• class: Standard
• service: USPS Ground Advantage
• type: Fixed
• carrier: USPS

returns pistonrinro:

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

offer pistonrinro:

• availability: In Stock
• quantity: 2
• started: April 23, 2026
• options: Ship-to-home
• sold: 0

payments pistonrinro:

• wallet: Paypal
• credit card: Diners-club
• other

Elgin Industries CR35004 Is Similar To:

• L616 Elgin Pistons New Nos (24.8% similar) Pistons measure new nos piston set is a little dusty dirty and shows some light patina from sitting on the shelf, see pics for condition. New nos Elgin piston and pin set, part number L616. Measured with a cheap dial caliper and may be - couple thousandths. Please e-mail with any questions before ...(October 1st, 2017)
• Elgin Pr-37h Engine Push Rod Set Of 8 (31.4% similar) A picture says a thousand words, please refer to pictures for full condition and specific item details. Elgin engine push rod PR-37H set of if it is not pictured, then included in this listing...(January 8th, 2025)
• Elgin Pr-44s Engine Push Rod Set Of 4 (28.6% similar) If it is not pictured, then included in this listing. Elgin engine push rod PR-44S set of a picture says a thousand words, please refer to pictures for full condition and specific item details...(January 8th, 2025)
• Elgin Industries Cr-35063 New Sbc Steel6.0 Inch Connecting Rod Arp Bolts Press Fit 5140 Race Racing Imca (95.7% similar) They vary in weight from 450 on the big end and 199 pin free shipping made from 5140 steel, these rods are designed for racing applications and manufactured in the USA. The product is a single 6.0 inch connecting rods made by Elgin Industries, featuring arp bolts for enhanced performance. The ...(April 17th, 2026)
• Elgin Industries Cr-35002 New Sbc Steel 5.7 Inch Connecting Rod Arp Bolts Brass 5140 Polish Nitrous Imca (83.1% similar) It is a genuine replacement part with the manufacturer number CR-35002. They vary in weight from 488 on the big end and 199 pin free shipping the product is a single small block 5.7 standard with polished beams connecting rods made by Elgin Industries, featuring arp bolts for enhanced performance. ...(April 22nd, 2026)
• Elgin Industries Cr-12 New Bbc Steel6.800 Inch Connecting Rod Arp Bolts Floating 4340 Race Nitrous (75.6% similar) They vary in weight from 577 on the big end and 251 pin free shipping made from 4340 steel, these rods are designed for racing applications and manufactured in the USA. It is a genuine replacement part with the manufacturer number CR12. The connecting rods are full floating with bronze bushings and ...(April 23rd, 2026)