1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 13461188191948721
  3. MANLEY 14359-8

MANLEY 14359-8 Engine Connecting Rod Set Light 807298011554 6.125

fits model: Ls1, 125.

14359-8 Manley Engine Connecting Rod Set - Rod-sbc Ls1 6.125 Light

( Brand: Manley ), ( Manufacturer Part Number: 14359-8 ), ( Part Type: Engine Rod Light ), ( Warranty: 1 Year ), ( Product Market: Domestic ), ( Average Gram Weight: 615 Gr ), ( Big End Bore: 2.225 In ), ( Center To Center Length: 6.125 In ), ( Journal Size: Stock ), ( Length: .025 Longer ), ( Pin End Bore: 0.9281 In ), ( Wrist Pin Diameter: 0.927 In ), ( Connecting Rod Series: Pro Series I-beam ), ( Connecting Rod Sub-series: Lightweight ), ( Product Type: Engine Connecting Rod Set ), ( Rod Bolt Material: Arp 8740 ), ( Connecting Rod Type: I-beam ), ( Pin End Width: 1.000 In ), ( Connecting Rod Material: 4340 ), ( Industry: Automotive ), ( Out Of Stock Message: Call For Availability ), ( Prop 65 Yes/no: Yes ), ( Prop 65: C ), ( R Or Cr : Cr ), ( Prop 65 Short Label: Prop 65 Warning Label.jpg ), ( Engine Type: Ice ), ( Make: Chevrolet ), ( Engine: Ls ), ( Country Of Origin: United States ), ( UPC: 807298011554 )

Review MANLEY Engine Connecting Rod Set sbc 6.125 Light fits LS1 125

The **Manley 14359-8 Engine Connecting Rod Set for Ford s SB-C LS1 6.125" Light** represents a premium upgrade for high-performance and modified LS1-based engines, delivering unmatched strength, precision, and reliability under extreme loads. Designed specifically for the **6.125" stroke crankshaft configuration** common in high-revving, forced-induction, or nitrous-enhanced applications this rod set is engineered to withstand the brutal stresses of aggressive power modifications while maintaining the integrity of the original engine architecture. Crafted from **forged 4340 steel**, these rods are heat-treated to an impressive **100,000 PSI tensile strength**, ensuring they can handle the relentless forces generated by turbocharged, supercharged, or nitrous-injected engines without compromising durability. The **lightweight design** (relative to heavier aftermarket options) reduces reciprocating mass, allowing for higher RPM stability and improved engine responsiveness, which is critical for drag racing, street tuning, or track applications where efficiency and power output are paramount.

Each rod in this set features **precision-machined small ends** with **1.500" bore diameter**, compatible with the stock LS1 piston pin size, ensuring seamless integration with aftermarket or OEM pistons while maintaining proper clearance for optimal lubrication. The **split-pin style** small end caps are secured with **high-strength, hardened steel split pins**, providing a secure yet removable connection that allows for easy maintenance and inspection. The **big end bearings** are included as part of the package, featuring **high-capacity, oil-impregnated bronze shells** that enhance durability and reduce wear under heavy loads, while the **oil holes** are strategically placed to ensure consistent lubrication even at extreme angles. The rods are **fully balanced** to factory specifications, eliminating any potential for vibration or imbalance that could lead to premature wear on the crankshaft or main bearings.

Beyond raw strength, the **Manley 14359-8 rod set** excels in versatility, making it an ideal choice for both **stock-style builds** and **full race applications**. The **SB-C (small block Chevy) compatibility** ensures a perfect fit for Ford s **LS1-based engines**, including those found in the **SVT Lightning, Mustang GT, or EcoBoost derivatives**, as well as aftermarket blocks like those from **LS1Swap, JE, or other high-quality manufacturers**. Whether you're running **nitrous, turbocharging, or simply pushing stock compression to its limits**, these rods provide the confidence of knowing your engine is protected by some of the most robust aftermarket components available. Additionally, Manley s reputation for **meticulous quality control** means every rod undergoes rigorous inspection for **surface cracks, dimensional accuracy, and material integrity**, ensuring that only the finest components make it into your engine bay. For enthusiasts demanding **peak performance without sacrificing longevity**, the **Manley 14359-8 Connecting Rod Set** is a standout choice combining **proven strength, precision engineering, and race-proven reliability** to elevate any LS1-based powerplant.

### **Pros and Cons of buying a Manley 14359-8 Engine Connecting Rod Set (Rod-SBC LS1 6.125" Light)**

#### **Pros:**

1. **High-Quality Materials** Manley rods are forged from premium aircraft-grade aluminum alloy (7050-T7451), ensuring durability and strength. The 6.125" length is optimized for the LS1 engine family, providing a balanced fit for both stock and modified applications.

2. **Lightweight Design** The "light" designation means these rods are thinner than stock LS1 rods, reducing reciprocating mass. This can improve engine balance, reduce stress on the crankshaft, and potentially enhance performance, especially in high-RPM applications.

3. **Precision Machining** Manley rods undergo strict CNC machining and heat treatment, ensuring tight tolerances and consistent quality. This reduces the risk of premature failure compared to aftermarket rods of lower quality.

4. **Compatibility with LS1 Engines** Specifically designed for the LS1 block (including SBC variants), these rods are engineered to fit stock crankshafts and bearings, making them a straightforward upgrade for stock or mildly modified engines.

5. **Warranty and Support** Manley offers a robust warranty (typically 1 year or more) and strong customer support, which is reassuring for a critical component like connecting rods.

6. **Performance Benefits** The lighter rods can improve engine response, especially in forced induction applications, by reducing inertia and allowing the engine to rev more freely.

7. **Easy Installation** Manley provides detailed installation instructions, and the rods are designed to be a drop-in replacement for stock LS1 rods, minimizing modification complexity.

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#### **Cons:**

1. **Cost** High-quality aftermarket rods like Manley s are significantly more expensive than OEM rods. The price point may be prohibitive for budget-conscious builders or casual restorers.

2. **Potential for Overkill** If the engine is not heavily modified (e.g., no forced induction, minimal displacement), the benefits of lighter rods may be marginal. Stock LS1 rods are already robust and can handle stock power levels without issues.

3. **Installation Complexity** While not overly difficult, replacing rods requires careful attention to torque specs, bearing clearance, and alignment. Improper installation can lead to catastrophic failure.

4. **Limited Stock Availability** Like many high-end aftermarket parts, these rods may not be readily available at all local shops, requiring online ordering or special ordering from a dealer.

5. **Compatibility with Aggressive Mods** While designed for the LS1, these rods may not be ideal for extreme builds (e.g., 1000 HP forced induction) without additional reinforcement (e.g., stronger bolts, upgraded crankshafts). Manley s "light" designation means they are not as robust as their heavier-duty counterparts.

6. **Learning Curve for Beginners** First-time engine builders may find the process of selecting and installing rods overwhelming, especially when weighing options like rod length, material, and balance.

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### **Conclusion:**

The **Manley 14359-8 connecting rod set** is an excellent choice for LS1 engine builders who prioritize performance, reliability, and precision. The lightweight design offers tangible benefits for high-RPM applications, forced induction, or engines where reduced reciprocating mass is desirable. However, the cost and potential overkill for stock or mildly modified engines make it less ideal for casual restorations or budget-conscious projects.

For **stock or near-stock LS1 engines**, the benefits may not justify the expense, and OEM rods or a slightly less expensive aftermarket set (e.g., JE or Scat) might suffice. For **performance builds (e.g., turbocharged, supercharged, or high-RPM applications)**, these rods are a strong recommendation due to their quality and balance.

### **Recommendation:**

- **Buy if:** You are building a performance LS1 engine (especially with forced induction), want premium-quality rods, and are willing to invest in a component that will last. The lighter rods will improve engine balance and responsiveness.

- **Skip if:** Your engine is stock or mildly modified, and you are working within a tight budget. In such cases, OEM rods or a mid-range aftermarket set may provide adequate performance without the premium price.

- **Consider alternatives:** If you want lighter rods but at a lower cost, brands like **JE, Scat, or Crane** offer competitive options. For extreme builds, heavier-duty rods (e.g., Manley s "heavy" series) may be preferable.

Ultimately, the decision depends on your engine s intended use, budget, and long-term goals. For most performance LS1 builds, Manley rods are a wise investment.

Details:

Unleash your street/strip machines true power potential with time-tested components from Manley. ABOUT THE BRAND: Manley performance products have been tearing up streets and tracks worldwide since 1966. Part #: 14359-8. Having trouble deciding on whether to get a folding or roll-up tonne cover.

Need advice on which exhaust system to purchase. Manley Engine Connecting Rod Set - Rod-SBC LS1 6.125 LIGHT. Today, Manley manufactures crankshafts, connecting rods, pistons, push rods, rocker arms, valve springs, lash caps, guide plates, and many other OEM high performance components. Throughout the 1970s, legendary racers such as dont Galoots, Bill Jenkins, Joe Mendel, and Jungle Jim Lieberman equipped their vehicles with Manley components.

part #: 143598 price

  • $2031.60

specifications pistonrinro:

  • for models: Ls1, 125
  • brand: Manley
  • mpn: 14359-8
  • part type: Engine Rod Light
  • warranty: 1 Year
  • product market: Domestic
  • average gram weight: 615 Gr
  • big end bore: 2.225 In
  • center to center length: 6.125 In
  • journal size: Stock
  • length: .025 Longer
  • pin end bore: 0.9281 In
  • wrist pin diameter: 0.927 In
  • connecting rod series: Pro Series I-beam
  • connecting rod sub-series: Lightweight
  • product type: Engine Connecting Rod Set
  • rod bolt material: Arp 8740
  • connecting rod type: I-beam
  • pin end width: 1.000 In
  • connecting rod material: 4340
  • industry: Automotive
  • out of stock message: Call For Availability
  • prop 65 yes/no: Yes
  • prop 65: C
  • r or cr : Cr
  • prop 65 short label: Prop 65 Warning Label.jpg
  • engine type: Ice
  • make: Chevrolet
  • engine: Ls
  • country of origin: United States
  • upc: 807298011554

general pistonrinro:

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

seller pistonrinro:

  • city: Arlington, Texas
  • # reviews: 3414
  • rating: 97.0%

shipping pistonrinro:

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

offer pistonrinro:

  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • started: May 6, 2026
  • quantity: 2

returns pistonrinro:

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

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  • wallet: Google-pay
  • credit card: Mastercard
for models: ls1, 125, part type: engine rod light, warranty: 1 year, product market: domestic, average gram weight: 615 gr, big end bore: 2.225 in, center to center length: 6.125 in, journal size: stock, length: .025 longer, pin end bore: 0.9281 in, wrist pin diameter: 0.927 in, connecting rod series: pro series i-beam, connecting rod sub-series: lightweight, product type: engine connecting rod set, rod bolt material: arp 8740, connecting rod type: i-beam, pin end width: 1.000 in, connecting rod material: 4340, industry: automotive, out of stock message: call for availability, prop 65 yes/no: yes, prop 65: c, r or cr: cr, prop 65 short label: prop 65 warning label.jpg, engine type: ice, engine: ls, country of origin: united states,
manufacturer: chevrolet, category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, sku: 13461188191948721,
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  • New. Offer #1 priced at $2031.60 + $0.00 shipping estimate = $2031.60* total. Manley Engine Connecting Rod Set - Manley Connecting Rod-SBC LS1 6.125 LIGHT.FREE SHIPPING

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