1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 12724576120791741
  3. MAXPEEDINGRODS 6ISMR8

MAXPEEDINGRODS 6ISMR8 Connecting Rods Laser Bolts Conrods 4/7 4G63

fits model: Evo. make: Mitsubishi.

6ismr8 Maxpeedingrods Connecting Rods For Mitsubishi Laser Evo 4-7 8 9 4g63 7 Bolts Late Model Conrods

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 6ISMR8 ), ( Part Type: Rod Laser Bolt ), ( Big End Diameter: 48mm ), ( Big End Width: 26.4mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Material: Forged 4340 Aircraft Chrome Moly Quality Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Placement On Vehicle: Pin Diameter 22mm For 7 Bolts Crankshaft Flange ), ( Quantity: Set Of 4 Pieces ), ( Rod Length: 150mm ), ( Surface Finish: Extra Cost For Upgrading To Arp L19 Bolts ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS Connecting Rods Mitsubishi Laser 4-7 8/9 4g63 Bolts Late Model Conrods fits EVO

The **Maxpeedingrods 6iSMR8 connecting rods** are a meticulously engineered, high-performance upgrade designed specifically for the **Mitsubishi Lancer Evolution IV through VII (4G63 engine)**, offering a substantial leap in durability, reliability, and power potential. Crafted from **forged 4340 steel**, these rods are heat-treated to an impressive **1,000,000 PSI tensile strength**, ensuring they can withstand the extreme stresses of aggressive driving, forced induction, or high-revving applications without compromising structural integrity. Unlike stock rods, which are often cast and prone to fatigue under heavy loads, these rods feature a **fully machined, balanced design** with precision-ground surfaces and optimized wall thickness, reducing weight while maintaining rigidity. The **8mm (0.315") bolt pattern** is perfectly compatible with the 4G63 s stock crankshaft, allowing for a seamless bolt-on installation with minimal modification required though upgrading to **ARP or similar high-strength bolts** is strongly recommended for optimal performance. Engineered with **oversized bearing journals** and **optimized rod length**, these rods promote better crankshaft balance, reduced vibration, and improved piston-to-wall clearance, which translates to smoother operation and enhanced longevity even under extreme power levels. Whether you're running a naturally aspirated turbocharged, supercharged, or nitrous-injected 4G63, these rods provide the backbone needed to handle the increased stress without the risk of catastrophic failure. Built to withstand **high RPMs, forced induction pressures, and aggressive driving styles**, the **6iSMR8 rods** are an ideal choice for enthusiasts seeking a **direct, bolt-on upgrade** that delivers measurable performance gains while maintaining the stock engine s reliability. With their **precision manufacturing, superior material composition, and proven track record in high-stress applications**, these connecting rods are a game-changer for anyone looking to push their Lancer Evolution to its absolute limits.

**Pros and Cons of Buying Maxpeedingrods 6ISMR8 Connecting Rods for Mitsubishi Lancer Evo IV-VII (4G63 Engine)**

### **Pros**

1. **High-Strength Material** These rods are made from **forged 4340 steel**, a material known for its durability and resistance to fatigue, making them suitable for high-performance applications. The heat treatment process ensures they can handle increased stress without failing.

2. **Precision Machining** Maxpeedingrods specializes in aftermarket engine components, and their rods are **precisely machined** to tight tolerances. This reduces the risk of misalignment or premature wear compared to stock rods, which may have been manufactured with less stringent quality control.

3. **Lightweight Design** The rods are **hollow or feature optimized wall thickness**, which reduces overall weight while maintaining strength. This can improve engine balance, reduce reciprocating mass, and potentially enhance RPM potential.

4. **Compatibility with Upgrades** If you re running a **turbocharged, nitrous, or high-RPM setup**, these rods are designed to handle the increased loads that come with forced induction or aggressive tuning. They are a common choice for **big-bore kits, crankshaft upgrades, or high-compression builds**.

5. **Warranty and Support** Maxpeedingrods offers a **warranty** on their products, and they provide **technical support** for installation and compatibility questions. This can be reassuring for those new to engine modifications.

6. **Improved Reliability Over Stock** Stock 4G63 rods are known to be **marginally strong** for high-performance applications, especially with aggressive tuning. Upgrading to Maxpeedingrods rods can **eliminate the risk of rod failure** under extreme conditions.

7. **Easy Installation** The rods come **pre-machined for the 4G63 engine**, meaning they should fit without extensive modification to the crankshaft or engine block. However, **proper installation is critical**, and some users may need to replace rod bearings or adjust oil squirters.

---

### **Cons**

1. **Cost** These rods are **not cheap**, typically ranging between **$300 $500 depending on quantity and additional features** (e.g., nitrous-ready, big-bore compatible). For a stock or mildly tuned engine, this may be an unnecessary expense.

2. **Installation Complexity** While the rods themselves are straightforward, **installing them requires precision**. Mistakes in **bearing clearance, oil squirter placement, or torque specification** can lead to **premature failure or engine damage**. This job is best left to a **reputable engine builder**.

3. **Potential for Overkill** If your engine is **stock or only mildly modified**, these rods may be **more than sufficient**, and the extra cost isn t justified. Stock rods can handle **stock power and mild forced induction** without issue.

4. **Rod Bearing Compatibility** Some users report that **stock rod bearings may not be ideal** with upgraded rods, requiring **aftermarket bearings** (e.g., **Fel-Pro, Clevite, or INA**) for optimal performance. This adds to the cost.

5. **Limited Aftermarket Support** While Maxpeedingrods is a well-regarded brand, **not all tuners or mechanics may be familiar** with their specific rods. This could make troubleshooting or future modifications slightly more difficult.

6. **Risk of Improper Use** If the engine is **not properly supported** (e.g., weak crankshaft, insufficient oil pressure, or inadequate cooling), even strong rods can fail. These rods are **not a cure-all** they must be paired with a **balanced engine build**.

7. **Potential for Voiding Warranty** If you re running a **factory-tuned or warranty-covered engine**, installing aftermarket rods may **void the manufacturer s warranty**, leaving you responsible for any engine damage.

---

### **Conclusion**

Maxpeedingrods 6ISMR8 connecting rods are a **solid upgrade** for Mitsubishi Lancer Evo IV-VII (4G63) engines that are **heavily modified, turbocharged, or running nitrous**. They offer **superior strength, precision machining, and reliability** compared to stock rods, making them a **wise investment for high-performance builds**.

However, for **stock or mildly tuned engines**, these rods are **overkill and unnecessary**. In such cases, **stock rods (with proper maintenance) or a more budget-friendly aftermarket option** (e.g., **JE, Scat, or local forge rods**) may suffice.

If you **plan to push your engine to extreme power levels (300 hp, forced induction, or nitrous)**, these rods are **highly recommended** but only if installed correctly with **compatible bearings, oil squirters, and a well-supported crankshaft**.

---

### **Final Recommendation**

- **Buy these rods if:**

- You are **running a turbocharged, nitrous, or big-bore 4G63 engine**.

- You **plan to exceed 300 hp** with forced induction.

- You **have a reputable engine builder** installing them with proper bearings and oil squirters.

- You **want the best available aftermarket rods** for reliability under extreme stress.

- **Avoid these rods if:**

- Your engine is **stock or only mildly modified**.

- You **cannot afford professional installation**.

- You **prefer a more budget-friendly alternative** (e.g., **JE rods, Scat, or local forge rods**).

- You **have a warranty-covered engine** and are unwilling to void it.

**Best Alternative Options:**

- For **mild builds**, consider **stock rods with upgraded bearings** or **JE 4340 rods** (often cheaper).

- For **budget-friendly high-performance**, **Scat or local forge rods** may offer a good balance of cost and strength.

- Always **consult a tuner or engine builder** before committing to any rod upgrade to ensure it aligns with your engine s power goals.

Details:

Boxes, APO/FPO addresses, or Military Mail Boxes. H-Beam Design: helps improve stiffness, reduce stress risers and weight. One Year Unlimited Mileage Quality Guarantee. Our representatives will provide you with detailed instructions on how to proceed.

Bores finished to: /- .005mm or .0002. High Precision Control: Balanced within: /- 1 gram per rod. Horsepower Rating: Advertised horsepower rating: 600HP-800HP. YRMDU Connecting Rods for Mitsubishi Laser EVO 4-7 8/9 4G63 7 Bolts Late model Conrods.

part #: 6ismr8 price

  • $352.28

specifications pistonrinro:

  • for models: Evo
  • for makes: Mitsubishi
  • brand: Maxpeedingrods
  • mpn: 6ismr8
  • part type: Rod Laser Bolt
  • big end diameter: 48mm
  • big end width: 26.4mm
  • california prop 65 warning: California Prop 65 Warning
  • material: Forged 4340 Aircraft Chrome Moly Quality Steel
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part
  • pin type: Bronzed Bushing Floating Pin
  • placement on vehicle: Pin Diameter 22mm For 7 Bolts Crankshaft Flange
  • quantity: Set Of 4 Pieces
  • rod length: 150mm
  • surface finish: Extra Cost For Upgrading To Arp L19 Bolts
  • weight tolerance: Balanced To / 1 Gram In Set

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

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

general pistonrinro:

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

offer pistonrinro:

  • best offers: True
  • sold: 0
  • started: March 11, 2026
  • availability: In Stock
  • quantity: 4
  • options: Ship-to-home

seller pistonrinro:

  • rating: 98.9%
  • # reviews: 834
  • city: Rowland height, California
for models: evo, for makes: mitsubishi, part type: rod laser bolt, big end diameter: 48mm, big end width: 26.4mm, california prop 65 warning: california prop 65 warning, note: no instruction included, notice: this is aftermarket replcement part, pin type: bronzed bushing floating pin, placement on vehicle: pin diameter 22mm for 7 bolts crankshaft flange, quantity: set of 4 pieces, rod length: 150mm, surface finish: extra cost for upgrading to arp l19 bolts, 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: 12724576120791741,
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