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  2. sku: 12669578798037751
  3. MAXPEEDINGRODS JUF42M

MAXPEEDINGRODS JUF42M Connecting Rods Gst 4PCS 4G63 156MM

fits model: Gs, Eclipse. make: Mitsubishi. year: 1993–1999.

Juf42m Maxpeedingrods 4pcs Connecting Rods For Mitsubishi Eclipse Gst 1993-1999 Gs 4g63 156mm

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: JUF42M ), ( Part Type: Rod ), ( Big End Diameter: 48mm ), ( Big End Width: 26.4mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center To Center Length: 156mm ), ( Material: Forged 4340 Aircraft Chrome Moly Quality Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part., California Prop 65 Warning., This Is Aftermarket Replcement Part ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Small End Diameter: 22mm ), ( Universal Fitment: No ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS 4pcs Connecting Rods Mitsubishi Gst 4g63 156mm fits ECLIPSE GS 1993–1999

The **Maxpeeding Rods JUF42M 4-Piece Connecting Rods** are a premium, high-performance upgrade designed specifically for the **Mitsubishi Eclipse (GST) and Galant (GS) models from 1993 to 1999**, featuring the **4G63 156mm stroke engine**. Engineered with precision and built to exacting standards, these rods are crafted from **forged 4340 chromium-molybdenum steel**, a material renowned for its exceptional strength, durability, and resistance to fatigue critical attributes for engines pushing beyond factory limits. Each rod undergoes a meticulous **heat-treatment process**, ensuring optimal hardness and elasticity to withstand the rigors of high RPM, forced induction, or aggressive tuning scenarios. The **156mm rod length** is perfectly matched to the 4G63 engine s specifications, guaranteeing seamless integration with the crankshaft and pistons while maintaining critical clearances for reliable operation. These rods are **fully balanced** to minimize vibration, reducing stress on the crankshaft and bearing system, which is especially beneficial for engines running nitrous oxide, turbocharging, or supercharging setups. The **smooth, polished rod journals** and **precisely machined big-end caps** ensure a snug fit with the bearings, reducing friction and maximizing efficiency. Whether you're building a **high-revving street machine, a track-focused performance engine, or a reliable daily driver with enhanced power delivery**, these Maxpeeding Rods deliver the structural integrity and performance edge needed to push your 4G63 engine to its limits. Built to last, these rods are a testament to Maxpeeding s commitment to quality, offering a direct path to improved durability, power output, and overall engine longevity.

### Pros and Cons of Buying Maxpeedingrods JUF42M 4-Piece Connecting Rods for the Mitsubishi Eclipse GST (1993-1999) 4G63 (156mm)

#### **Pros:**

1. **High-Quality Materials:** Maxpeedingrods is known for using forged steel or high-grade materials in their connecting rods, which enhances durability and strength compared to stock rods. This can improve engine longevity, especially under heavy loads or high-performance modifications.

2. **Precision Machining:** These rods are likely machined to tight tolerances, ensuring better fitment and reduced stress on the crankshaft and bearings. This can contribute to smoother operation and reduced vibration.

3. **Compatibility with Performance Upgrades:** If you plan to build a high-performance engine (e.g., forced induction, nitrous, or high RPM applications), these rods may be necessary to handle increased stress. The 156mm rod length is standard for the 4G63, so they should fit without modification.

4. **Aftermarket Support:** Maxpeedingrods is a reputable brand with a track record in the performance automotive market. They provide technical support and often include installation guides or recommendations for related components (e.g., crankshaft, bearings).

5. **Potential for Increased Power:** Stronger rods can allow for higher compression ratios, more aggressive camshafts, or forced induction without the risk of catastrophic failure. This is particularly useful if you re pushing the engine beyond stock limits.

6. **Warranty and Reliability:** Many aftermarket rod manufacturers offer warranties, and Maxpeedingrods is no exception. This provides peace of mind in case of manufacturing defects.

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#### **Cons:**

1. **Cost:** Aftermarket connecting rods are significantly more expensive than OEM rods. For a 4-piece set, the price can range from $300 to $600 or more, depending on the specific model and any additional features (e.g., nitrided or polished surfaces). This is a substantial investment, especially for a project car.

2. **Installation Complexity:** Replacing connecting rods requires advanced mechanical skills, specialized tools (e.g., rod jig, torque wrench, and proper bearing installation tools), and often the removal of the crankshaft. If you lack experience, this job may need to be done by a professional mechanic, adding to the cost.

3. **Potential for Overkill:** If you re not planning aggressive modifications (e.g., forced induction, extreme compression, or high RPM tuning), stock rods may suffice. Upgrading to aftermarket rods without corresponding engine upgrades (e.g., stronger crankshaft, upgraded pistons, or better lubrication) may not provide noticeable benefits.

4. **Compatibility Concerns:** While the JUF42M rods are designed for the 4G63, ensure they match your specific engine configuration (e.g., stroke, bore, and crankshaft journal size). Double-check dimensions and bolt patterns to avoid fitment issues. Some rods may require shims or custom machining if the crankshaft is not stock.

5. **Risk of Damage During Installation:** Improper handling during installation (e.g., dropping rods, mishandling bearings, or incorrect torque) can lead to catastrophic failure. This risk is higher with aftermarket parts if not installed correctly.

6. **Maintenance and Cost of Related Upgrades:** Stronger rods often require complementary upgrades, such as:

- A stronger crankshaft (e.g., forged or balanced).

- High-quality bearings (e.g., ISC or Clevite).

- Proper lubrication (e.g., synthetic oil with high viscosity).

- Upgraded pistons or rods if further modifications are planned.

These additional costs can add up quickly.

7. **Limited Stock Availability:** Aftermarket rods may not always be in stock, and lead times can vary. This could delay your project if you re waiting for parts.

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### **Conclusion:**

Maxpeedingrods JUF42M connecting rods are a solid choice for Mitsubishi Eclipse GST owners looking to build a high-performance or durable engine, especially if they plan to push the 4G63 beyond stock limits. The forged or high-grade steel construction, precision machining, and compatibility with performance applications make them a worthwhile investment for serious builders. However, the cost, installation complexity, and potential for overkill (if no major modifications are planned) are significant drawbacks.

If your primary goal is reliability and longevity with occasional performance tuning, these rods are a strong upgrade. If you re on a budget or only doing mild modifications, stock rods or a less expensive aftermarket option might suffice. Always ensure that any rod upgrade is paired with the rest of the engine s components to avoid mismatches.

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### **Recommendation:**

1. **Assess Your Goals:** Determine whether you need these rods for reliability, mild performance tuning, or aggressive high-power applications. If you re not planning significant modifications, stock rods may be adequate.

2. **Budget Accordingly:** Factor in the cost of installation (labor if needed) and complementary upgrades (crankshaft, bearings, oil system). If the total cost exceeds your budget, consider alternative rod brands or a phased upgrade plan.

3. **Verify Compatibility:** Confirm that the JUF42M rods match your engine s specifications (e.g., rod length, bolt pattern, and crankshaft journal size). Consult with a mechanic or performance specialist if unsure.

4. **Plan for Installation:** If you lack experience, budget for professional installation to avoid costly mistakes. Alternatively, research rod replacement procedures thoroughly before attempting it yourself.

5. **Consider Alternatives:** If Maxpeedingrods is out of budget, explore other reputable brands like **Eagle, JE, or Scat** for similar rods. Some may offer comparable quality at a lower price.

6. **Pair with Engine Upgrades:** If you re upgrading rods, consider other critical components (e.g., forged crankshaft, high-quality bearings, and upgraded pistons) to ensure the entire engine is balanced for performance.

**Final Verdict:** For serious builders pushing the 4G63 engine, the Maxpeedingrods JUF42M rods are a reliable and high-quality upgrade. However, weigh the cost and complexity against your project s needs before committing. If you re unsure, consult with a performance engine builder to ensure the upgrade aligns with your goals.

Details:

Fast Shipping. Will not fit 1G 4G63 6 Bolt Engines. For Talon for RSI 1993 -1998, Mitsubishi Eclipse GS 1993 -1994, GST 1993 -1999, GSX Spider 1996 -1999, Lancer Evolution 2003 -2006, Plymouth Laser RS Pin Type: Floating Piston. For 4G63 2nd Gen Lancer EVO 7 BOLT, Note to length :156mm/6.142.

Advertised Horsepower Rating:200HP/piece, Top acceleration: 9000rpm, package size 28CM 21CM 10CM. Applications. Guaranteed Fitment, Always the correct part.

specifications pistonrinro:

  • for models: Gs, Eclipse
  • for makes: Mitsubishi
  • for years: 1993-1999
  • brand: Maxpeedingrods
  • mpn: Juf42m
  • part type: Rod
  • big end diameter: 48mm
  • big end width: 26.4mm
  • california prop 65 warning: California Prop 65 Warning
  • center to center length: 156mm
  • material: Forged 4340 Aircraft Chrome Moly Quality Steel
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part., California Prop 65 Warning., This Is Aftermarket Replcement Part
  • pin type: Bronzed Bushing Floating Pin
  • small end diameter: 22mm
  • universal fitment: No
  • weight tolerance: Balanced To / 1 Gram In Set

shipping pistonrinro:

  • service: FedEx Ground / FedEx Home Delivery
  • carrier: FedEx
  • transit: 4-9 Days
  • class: Standard
  • type: Fixed
  • cost: $0.00

seller pistonrinro:

  • rating: 99.1%
  • city: Rowland height, California
  • # reviews: 14249

offer pistonrinro:

  • availability: In Stock
  • sold: 0
  • started: March 7, 2026
  • options: Ship-to-home
  • best offers: True
  • quantity: 1

general pistonrinro:

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

returns pistonrinro:

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

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for models: gs, eclipse, for makes: mitsubishi, for years: 1993-1999, part type: rod, big end diameter: 48mm, big end width: 26.4mm, california prop 65 warning: california prop 65 warning, center to center length: 156mm, note: no instruction included, notice: this is aftermarket replcement part., california prop 65 warning., this is aftermarket replcement part, pin type: bronzed bushing floating pin, small end diameter: 22mm, universal fitment: no, weight tolerance: balanced to / 1 gram in set,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: forged 4340 aircraft chrome moly quality steel, sku: 12669578798037751,
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