1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 12456793669498713
  3. BFO HCJPT8

BFO HCJPT8 Connecting Rods Bolts 5.700 5140 3/8

fits model: 700, 350. make: Chevy. year: 1967–2003.

Hcjpt8 Bfo 5.700 Inch 5140 Connecting Rods For Chevy Sbc 350 1967-2003 With 3/8 Bolts

( Brand: Bfo ), ( Manufacturer Part Number: HCJPT8 ), ( Advertised Horsepower Rating: Hp ), ( Advertised Rpm Rating: 6, 000 Rpm ), ( Big End Width: 0.940 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Connecting Rod Bolt: 3/8 ), ( Connecting Rod Bolt Head Style: 12-point ), ( Connecting Rod Bolt Material: 40crmo ), ( Connecting Rod Length: 5.700 ), ( Important Notice: Package Included, Professional Installation Required ), ( Manufacturer Warranty: 2 Years ), ( Material: Forged 5140 Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Performance Part: Yes ), ( Rod Journal Diameter: 2.100 ), ( Rod Type: I-beam ), ( Type: Connecting Rods ), ( Weight Tolerance: Balanced To / 1 Gram In Set ), ( Wrist Pin Diameter: 0.927 ), ( Wrist Pin Style: Floating Pin )

Review BFO 5.700 Inch Connecting Rods Chevy Sbc 3/8 Bolts fits 700 350 1967–2003

The **BFO HCJPT8 5.700" 5140 Forged Steel Connecting Rods** are a premium, high-performance upgrade designed specifically for Chevy 350 engines built between 1967 and 2003, featuring **3/8-inch bolt pattern compatibility** for enhanced durability and reliability. Crafted from **5140 chromoly steel**, these rods are precision-forged to deliver exceptional strength, rigidity, and resistance to fatigue critical attributes for high-RPM applications, forced induction, or heavy-duty street and strip use. Each rod undergoes **strict quality control**, including **dynamic balancing** and **shot peening** to eliminate stress risers, ensuring smooth operation and prolonged engine life. The **5.700-inch length** provides optimal piston-to-wall clearance while maintaining proper rod ratio for balanced crankshaft motion, reducing side loading and minimizing wear on the crankshaft journals. The **3/8-inch bolt pattern** allows for easy installation with stock or aftermarket crankshafts, making these rods a seamless fit for both stock and modified engines. Whether you're building a **high-performance street machine, a drag racing engine, or a reliable daily driver**, these rods offer the structural integrity and precision engineering needed to handle extreme power levels without compromising reliability. Backed by BFO s reputation for quality and performance, these connecting rods are an essential component for serious engine builders seeking a balance of strength, precision, and longevity.

### Pros and Cons of Buying BF&O HCJPT8 5.700" 5140 Connecting Rods for a 1967-2003 Chevy 350 (3/8" Bolt Pattern)

#### **Pros:**

1. **High-Quality Material** These rods are made from **5140 chromoly steel**, a material known for its strength, durability, and resistance to fatigue. This ensures they can handle high RPMs and heavy loads without failing prematurely.

2. **Precision Machining** BF&O (Bear Facts & Oil) is a reputable manufacturer that specializes in high-performance engine components. Their rods are **precisely balanced and machined** to tight tolerances, reducing vibration and improving engine longevity.

3. **Proven Compatibility** Designed specifically for **Chevy 350 engines (1967-2003)**, these rods fit the **3/8" bolt pattern** and are optimized for the stock crankshaft journals. They are a direct replacement for OEM rods, ensuring proper fitment without modification.

4. **Strength for Forced Induction & High-Performance Applications** The **5.700" length** provides a strong rod ratio (typically around **1.6:1**), which is ideal for **high-RPM applications, turbocharging, or nitrous setups**. They can handle the increased stress from forced induction without bending or cracking.

5. **Warranty & Reliability** BF&O offers a **strong warranty** on their products, indicating confidence in their quality. Many users report long-term reliability, especially when paired with proper lubrication and maintenance.

6. **Improved Durability Over Stock Rods** Stock Chevy 350 rods are often weaker, especially in high-stress applications. Upgrading to **5140 chromoly** significantly reduces the risk of rod failure, even under extreme conditions.

7. **Better Heat Dissipation** Chromoly rods dissipate heat more efficiently than cast iron or mild steel, which helps maintain consistent performance under heavy loads.

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#### **Cons:**

1. **Higher Cost Than Stock Rods** These rods are **not cheap**, typically costing **$100 $200 per rod or as a set**, depending on the source. This is significantly more expensive than OEM rods, which can be found for **$20 $50 per rod** in some cases.

2. **Requires Professional Installation** While not overly difficult, **rod replacement is a precision job** that should ideally be done by an experienced machinist or engine builder. Improper installation (e.g., incorrect gap, misalignment, or improper torque) can lead to failure.

3. **May Require Additional Modifications** If the engine has **stock pistons, crankshaft, or bearings**, upgrading to stronger rods may necessitate other upgrades (e.g., **aftermarket pistons, stronger bearings, or a balanced crank**) to fully utilize their potential.

4. **Potential for Overkill in Mild Applications** If the engine is **only used for light-duty or street driving without forced induction**, these rods may be **more than necessary**, making the investment less justified.

5. **Weight Consideration** Chromoly rods are **lighter than cast iron** but slightly heavier than some aftermarket forged steel rods. While the difference is minimal, it may not be a concern for most applications.

6. **Compatibility with Non-Stock Crankshafts** If the crankshaft has **undersized journals or is not properly balanced**, the rods may not perform optimally. A **crankshaft analysis** may be needed before installation.

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### **Conclusion:**

The **BF&O HCJPT8 5140 chromoly connecting rods** are one of the best upgrades for a **Chevy 350 engine**, especially if the application involves **high RPMs, forced induction, or heavy-duty use**. They offer **superior strength, durability, and reliability** compared to stock rods, making them a **strong recommendation for performance builds**.

However, they are **not a necessity for mild street applications** where stock rods or even **aftermarket forged steel rods** (like those from ARP or JE) might suffice. The **higher cost and installation complexity** mean they are best suited for **serious builders, racers, or those pushing the engine beyond stock limits**.

If the engine is **being modified for serious power (turbo, nitrous, or high-RPM street use)**, these rods are an **excellent investment**. If the build is **budget-conscious or low-stress**, a **balanced approach** (e.g., stock rods with other upgrades) may be more practical.

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

- You are **building a high-performance or forced-induction Chevy 350**.

- You plan to **run high RPMs, nitrous, or turbocharging**.

- You want **maximum durability and reliability** in a stressed engine.

- You are **already upgrading other critical components** (pistons, crank, bearings).

- **Consider alternatives if:**

- Your build is **low-power or street-only** (stock rods or ARP/JE rods may suffice).

- You are **working with a tight budget** (these rods are an expensive upgrade).

- You are **not experienced with engine assembly** (professional installation is highly recommended).

For most **serious Chevy 350 builds**, these rods are **worth the investment** and will significantly enhance engine longevity and performance. Pair them with **proper lubrication (high-quality oil), balanced components, and careful installation** for the best results.

Details:

Precision machined honed journal pin ends. Rod Journal Diameter: 2.100. These rods are x-rated ultrasonically tested with all surfaces shot preened stress relieved. Manufacturer Price match, guarantee.

PRODUCT DISPLAY 5.700 5140 Connecting Rods for Chevy SBC 350 1967-2003 with 3/8 Bolts Fast Shipping. Package included. Specification: Connecting Rod length : 5.700. Rod Type: I-Beam.

Guaranteed Fitment Always the, correct part. Application: For Chevy SBC 350 1967-2003. Wrist Pin Style: Floating.

part #: hcjpt8 prices

  • $111.09-$122.39

specifications pistonrinro:

  • for models: 700, 350
  • for makes: Chevy
  • for years: 1967-2003
  • brand: Bfo
  • mpn: Hcjpt8
  • advertised horsepower rating: Hp
  • advertised rpm rating: 6, 000 Rpm
  • big end width: 0.940
  • california prop 65 warning: California Prop 65 Warning
  • connecting rod bolt: 3/8
  • connecting rod bolt head style: 12-point
  • connecting rod bolt material: 40crmo
  • connecting rod length: 5.700
  • important notice: Package Included, Professional Installation Required
  • manufacturer warranty: 2 Years
  • material: Forged 5140 Steel
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part.
  • performance part: Yes
  • rod journal diameter: 2.100
  • rod type: I-beam
  • type: Connecting Rods
  • weight tolerance: Balanced To / 1 Gram In Set
  • wrist pin diameter: 0.927
  • wrist pin style: Floating Pin

offer pistonrinro:

  • options: Ship-to-home
  • availability: In Stock
  • best offers: True
  • quantity: 11
  • started: February 19, 2026
  • sold: 0

returns pistonrinro:

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

payments pistonrinro:

  • credit card: Mastercard
  • wallet: Paypal
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shipping pistonrinro:

  • cost: $0.00
  • carrier: UPS
  • transit: 5-8 Days
  • type: Fixed
  • service: UPS Ground
  • class: Standard

general pistonrinro:

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

seller pistonrinro:

  • # reviews: 4550
  • rating: 99.6%
  • city: Rowland height, California
for models: 700, 350, for makes: chevy, for years: 1967-2003, advertised horsepower rating: hp, advertised rpm rating: 6, 000 rpm, big end width: 0.940, california prop 65 warning: california prop 65 warning, connecting rod bolt: 3/8, connecting rod bolt head style: 12-point, connecting rod bolt material: 40crmo, connecting rod length: 5.700, important notice: package included, professional installation required, manufacturer warranty: 2 years, note: no instruction included, notice: this is aftermarket replcement part., performance part: yes, rod journal diameter: 2.100, rod type: i-beam, type: connecting rods, weight tolerance: balanced to / 1 gram in set, wrist pin diameter: 0.927, wrist pin style: floating pin,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: forged 5140 steel, sku: 12456793669498713,
Bfo HCJPT8 Is Similar To:
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5 offers $111.09–$122.39 USD
  • New. Offer #1 priced at $121.79 + $0.00 shipping estimate = $121.79* total. 8x Connecting Rods (with bolts). These I-beam connecting rods are manufactured from high-quality chromoly steel.FREE SHIPPING
  • New. Offer #2 priced at $111.09 + $0.00 shipping estimate = $111.09* total. These rods are x-rayed & ultrasonically tested with all surfaces shot peened & stress relieved. For Chevy SBC 350.FREE SHIPPING
  • New. Offer #3 priced at $122.39 + $0.00 shipping estimate = $122.39* total. FREE SHIPPING
  • New. Offer #4 priced at $121.89 + $0.00 shipping estimate = $121.89* total. Connecting Rod Bolt :3/8". Connecting Rod Length : 6.000".FREE SHIPPING
  • New. Offer #5 priced at $130.99 + $0.00 shipping estimate = $130.99* total. Connecting Rod Length : 5.700".FREE SHIPPING

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