fits model: Tr5, Gt6, Tr6. make: Triumph.

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: YUN86P ), ( Part Type: Rod Bolt ), ( Big End Diameter: 51.34mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center To Center Length: 146.05mm ), ( Fitment Type: Performance/custom ), ( Material: Forged 4340 Aircraft Chrome Moly Quality Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Quantity: 1 Set Of 6 Pieces ), ( Small End Diameter: 20.63mm ), ( Weight Tolerance: Balanced To / 1 Gram In Set ), ( Country Of Origin: China )
The **Maxpeedingrods YUN86P 6x Connecting Rod Assembly (EN24, 4340 Steel, ARP Bolts)** represents a meticulously engineered upgrade designed to elevate the performance, durability, and reliability of Triumph s classic roadster engines, including the legendary **TR5, TR250 GT6, and TR6**. Crafted from **high-grade EN24 steel**, this connecting rod set is forged to exacting standards, ensuring superior strength and resistance to fatigue critical attributes for high-revving engines that demand precision and longevity. The **4340 alloy steel** construction further enhances its ability to withstand extreme stress, making it an ideal choice for enthusiasts pushing their Triumphs beyond stock limitations while maintaining structural integrity under sustained power outputs.
The **6x configuration** refers to the rod s **6-bolt pattern**, a design choice that significantly improves rigidity and reduces deflection under high loads, which is particularly beneficial for engines modified with larger pistons, aggressive camshafts, or forced induction. This setup minimizes rod bounce and flex, allowing for smoother operation and improved efficiency, even at elevated RPMs where stock rods might otherwise struggle. The **ARP (Advanced Recoil Products) bolts** included with this assembly are a standout feature, offering **high-strength, heat-treated fasteners** that exceed OEM specifications. These bolts are engineered to handle the extreme clamping forces generated by modern engine builds, reducing the risk of bolt stretch or failure an all-too-common issue in high-performance applications. The ARP bolts are also treated with a **black oxide finish**, which enhances corrosion resistance and ensures a secure, vibration-dampening grip on the rod caps.
Beyond its mechanical advantages, the **YUN86P set** is designed with compatibility in mind, seamlessly integrating with Triumph s **6-cylinder engines** while adhering to the precise clearances and spacing required for optimal performance. Whether you re running a **stock-displacement engine** or a **stroked or turbocharged build**, these rods provide the backbone needed to support increased power without compromising on safety. The **EN24 steel** is known for its excellent balance of toughness and elasticity, making it less prone to brittle failure compared to lower-grade materials, while the **4340 alloy** adds a layer of hardness to resist wear and deformation under cyclic loading. This combination ensures that the rods maintain their structural integrity even under the most demanding conditions, from spirited track days to long-term reliability in daily driving.
For the discerning owner of a Triumph TR5, TR250 GT6, or TR6, upgrading to the **Maxpeedingrods YUN86P** is not just a performance enhancement it s a commitment to preserving the engine s heritage while pushing its limits. The assembly is backed by **Maxpeedingrods reputation for precision engineering**, ensuring that every rod is **machined to tight tolerances** and **dynamically balanced** for smooth operation. When paired with complementary upgrades like **ARP main studs, high-performance pistons, and a reinforced crankshaft**, this connecting rod set becomes a cornerstone of a **high-revving, high-torque engine** that retains the soul of Triumph s classic designs while embracing modern performance demands. Whether you re restoring a vintage roadster to its former glory or building a high-performance street machine, the **YUN86P rods** deliver the strength, durability, and reliability needed to turn heads and dominate the road.
**Pros and Cons of Buying Maxpeedingrods Yun86P 6x Connecting Rods (EN24, 4340, ARP Bolts) for Triumph TR5/TR250 GT6/TR6**
### **Pros:**1. **Strength and Durability** The Yun86P rods are forged from **EN24 steel**, a high-grade alloy known for its strength and resistance to fatigue. The **4340 steel** used in the bolts further enhances reliability, making them suitable for high-performance applications, including forced induction or aggressive driving.
2. **ARP Bolt Quality** The inclusion of **ARP bolts** (a premium aftermarket bolt manufacturer) ensures proper clamping force and prevents bolt stretch, reducing the risk of catastrophic failure. ARP bolts are widely trusted in high-performance and racing applications.
3. **Precision Machining** Maxpeedingrods is known for its **tight tolerances and quality machining**, ensuring a proper fit with minimal clearance issues. This helps maintain engine integrity under stress.
4. **Compatibility with Modified Engines** If you plan to **build a high-RPM or turbocharged engine**, these rods are a significant upgrade over stock components, which are often weaker and not designed for extreme loads.
5. **Aftermarket Support and Reputation** Maxpeedingrods is a respected brand in the aftermarket, with a track record of producing reliable parts for classic and modern engines. Their rods are often recommended for **high-performance builds** and **restomod projects**.
6. **Potential for Increased Power** Stronger rods allow for **higher compression ratios, forced induction, or aggressive camshafts** without the risk of rod failure, making them ideal for those pushing their engine s limits.
7. **Long-Term Reliability** Properly installed and maintained, these rods can last **decades**, even with heavy use, making them a worthwhile investment for serious enthusiasts.
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### **Cons:**1. **Cost** These rods are **significantly more expensive** than OEM or budget aftermarket options. The price reflects their quality, but it may be a **major upfront investment** for a project engine.
2. **Installation Complexity** Replacing connecting rods requires **disassembly of the entire engine**, which can be labor-intensive. If you lack mechanical experience, this may necessitate professional installation, adding to costs.
3. **Potential for Overkill (If Not Needed)** If your engine is **stock or lightly modified**, these rods may be **more than sufficient** stock rods can last well past 100,000 miles with proper maintenance. Upgrading may not be necessary unless you plan **aggressive modifications**.
4. **Weight Consideration** While stronger, **forged rods are heavier** than cast rods. In high-RPM applications, this slight weight increase may have a negligible effect, but it s worth noting for performance tuning.
5. **Compatibility with Stock Components** Some aftermarket rods may require **customized crankshaft journals or main bearings** for optimal fit. If your engine has **stock components**, additional modifications (like a stronger crank) may be needed, increasing costs further.
6. **Learning Curve for Maintenance** If you re new to engine work, the **maintenance requirements** (proper lubrication, torque specs, and inspection) for high-performance rods are more critical than stock parts. Neglecting these can lead to premature failure.
7. **Resale Value Impact** While high-quality parts increase an engine s reliability, they may **not significantly boost resale value** compared to stock or moderately upgraded engines, depending on the market.
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### **Conclusion:**The **Maxpeedingrods Yun86P 6x connecting rods with ARP bolts** are an **excellent choice** for **serious enthusiasts** planning **high-performance modifications**, such as forced induction, aggressive camshafts, or high-RPM operation. Their **superior strength, precision engineering, and ARP bolt reinforcement** make them a **wise investment** for those who want **peace of mind** in a heavily modified engine.
However, if your engine remains **stock or lightly modified**, these rods may be **overkill** and unnecessary. In such cases, **stock rods (with proper maintenance) or a budget aftermarket option** could suffice without the extra cost.
For **restomod projects, racing applications, or forced induction builds**, the **Yun86P rods are highly recommended** they provide the **reliability and performance** needed to push an engine to its limits safely.
### **Final Recommendation:**- **Buy if:** You are **building a high-performance engine** (turbocharged, supercharged, or high-RPM street/strip), restoring a **competition-style TR6/TR250**, or want **maximum reliability** for aggressive driving.
- **Skip if:** Your engine is **stock or lightly modified**, and you re on a **tight budget**. In that case, focus on **maintaining stock rods** or investing in **other performance upgrades** (camshafts, headers, fuel system) first.
- **Consider alternatives if:** You want a **mid-range option** some brands offer **stronger but slightly less expensive rods** (e.g., **Clevite, Scat, or JE**) that may still be suitable for moderate modifications.
For most **TR6/TR250 restomods or forced induction builds**, these rods are **one of the best upgrades** you can make **worth the investment** if you plan to **push the engine hard**.
RWD 6x Connecting Rod EN24 4340 ARP Bolts For Triumph TR5 TR250 GT6 TR6 late model. Our representatives will provide you with detailed instructions on how to proceed. High Precision Control: Balanced within: /- 1 gram per rod. Horsepower Rating: Advertised horsepower rating: 600HP-800HP.
Boxes, APO/FPO addresses, or Military Mail Boxes. H-Beam Design: helps improve stiffness, reduce stress risers and weight. Pin Type: Floating Piston. Bores finished to: /- .005mm or .0002.
One Year Unlimited Mileage Quality Guarantee.