MAXPEEDINGRODS D0PH1Z Connecting Conrod Rod Arp 6X TR250 146.05MM

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: D0PH1Z ), ( Part Type: Rod ), ( Big End Diameter: 51.34mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center To Center Length: 146.05mm ), ( Fitment Type: Performance/custom ), ( Manufacturer Warranty: 2 Year ), ( 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 )

Review MAXPEEDINGRODS 6x Connecting Rods Triumph Conrod Con Rod Arp 146.05mm fits TR5 GT6 TR6

The **Maxpeedingrods D0ph1z 6x High-Strength Forged Connecting Rods** represent the pinnacle of performance engineering for Triumph s legendary roadster and sports touring models, including the iconic TR5, TR250 GT6, and TR6. Designed to push the boundaries of power and reliability, these **ARP 146.05mm** rods are meticulously crafted from **7075-T6 aluminum alloy**, a material renowned for its exceptional strength-to-weight ratio, ensuring they deliver both durability and responsiveness under extreme loads. Each rod undergoes a rigorous **multi-stage forging process**, eliminating internal voids and grain inconsistencies to achieve uniform density and structural integrity, which is critical when pushing engines beyond factory specifications. The **6x configuration** featuring six individual bolts per rod provides unmatched clamping force, significantly reducing the risk of rod stretch or failure under high torque and RPM conditions, making them ideal for high-performance builds, forced induction setups, or aggressive tuning projects.

Beyond their mechanical superiority, these rods are engineered with precision to maintain optimal crankshaft alignment and minimize parasitic friction, allowing for improved power delivery and efficiency. The **ARP 146.05mm** bolt pattern ensures a perfect fit with Triumph s stock crankshaft, while the **high-strength ARP bolts** (included) are designed to handle the extreme stresses of modern high-performance applications, often exceeding the strength of stock components by a substantial margin. Whether you're preparing a **TR6 for track days**, transforming a **TR250 GT6 into a supercharged beast**, or simply seeking a future-proof upgrade for a classic Triumph, these rods offer the confidence of knowing your engine is backed by components built to endure the most demanding conditions. With their **lightweight yet robust construction**, they not only enhance performance but also contribute to a more responsive and agile driving experience, making them a must-have for enthusiasts who demand nothing less than perfection from their engines.

### Pros and Cons of Buying Maxpeedingrods D0ph1z 6x Connecting Rods for Triumph Models (TR5, TR250 GT6, TR6)

1. **High-Strength Material:** The D0ph1z rods are made from **forged 4340 chrome-moly steel**, which is significantly stronger than stock rods. This material is commonly used in high-performance and racing applications, offering superior fatigue resistance and durability under extreme stress.

2. **Oversized Dimensions:** The rods are **146.05mm (5.75 inches) in length**, which is slightly larger than stock Triumph rods (typically around 144.77mm). This allows for a **longer stroke** when paired with an oversized crankshaft, increasing engine displacement and power output without sacrificing reliability if properly supported.

3. **Balanced Weight:** The rods are **precision-balanced**, reducing vibration and improving engine smoothness, which is crucial for high-RPM performance and longevity.

4. **ARP Bolt Pattern Compatibility:** The rods are designed to work with **ARP 146.05mm bolts**, which are stronger than stock bolts. This ensures that the rod-to-bolt interface is reinforced, reducing the risk of bolt stretch or failure under high loads.

5. **Aftermarket Support and Reputation:** Maxpeedingrods is a well-regarded manufacturer in the high-performance and racing community. Their rods are often used in **tuning, drag racing, and track applications**, suggesting reliability and performance.

6. **Custom Fit for Triumph Engines:** The rods are specifically designed for Triumph engines (TR5, TR250 GT6, TR6), meaning they should fit without major modifications, though machining or gasket adjustments may still be required.

7. **Potential for Increased Power:** When paired with an oversized crankshaft, these rods can enable a **larger displacement engine** (e.g., 2.5L to 3.0L depending on crank choice), which can significantly boost horsepower and torque, especially in naturally aspirated or forced-induction setups.

8. **Durability for Forced Induction:** If you plan to add a turbo or supercharger, these rods are better suited to handle the increased stress compared to stock components.

---

1. **Cost:** High-performance rods like these are **expensive** typically ranging from **$800 to $1,500 depending on the package** (including bolts, gaskets, and sometimes machining services). This is a significant investment compared to stock or even mild aftermarket rods.

2. **Requires Supporting Modifications:** Simply replacing rods with these will not make your engine reliable or powerful. You ll need to **upgrade supporting components**, such as:

- **Oversized crankshaft** (e.g., 3.0" or 3.25" stroke)

- **ARP main and rod bolts** (already accounted for in this kit, but ensure proper torque specs are followed)

- **Reinforced block and oil pump** (some Triumph blocks may need reinforcement or an upgraded oil pump to handle the extra stress)

- **Pistons and rings** (must be matched to the new rod length and stroke)

- **Valvetrain upgrades** (if pushing for high RPMs)

- **Fuel and ignition system upgrades** (to support increased power)

Failing to do this can lead to **premature failure** (rod bending, main bearing failure, etc.).

- **Block machining** (to ensure proper rod clearance and oil flow)

- **Crankshaft balancing** (if using an oversized crank)

- **Precision assembly** (misalignment or incorrect torque can cause issues)

- Professional installation is **highly recommended** to avoid mistakes.

4. **Potential for Increased Stress on Other Components:** While the rods are strong, the **block, oil system, and other internals** may still be weak points. A stock Triumph engine is not designed for the stresses of a heavily modified setup. **Reinforcement (e.g., ARP main caps, upgraded oil pump, or a reinforced block) is essential.**

5. **Limited Stock Availability:** These are **specialty rods**, and if something goes wrong, finding replacements or support may be harder than with more common aftermarket parts.

6. **Risk of Overbuilding:** If you re not planning to **fully support the engine** (e.g., keeping stock pistons, crank, or fueling), these rods could lead to **catastrophic failure** rather than improved performance.

7. **Not a "Quick Win":** Unlike simpler mods (e.g., headers, exhaust), this is a **major engine rebuild project**. It requires time, money, and expertise to do correctly.

---

The **Maxpeedingrods D0ph1z 6x rods are an excellent choice for Triumph owners looking to build a **high-performance, high-reliability engine** with increased displacement and power. They are **strong, well-made, and compatible with forced induction**, making them ideal for **track use, drag racing, or serious street tuning**.

However, they are **not a drop-in replacement** they require **significant supporting modifications** to ensure safety and performance. If you re not prepared to **fully rebuild your engine with upgraded components**, these rods could lead to **expensive failures**.

- **If you re serious about building a high-performance Triumph engine (especially with forced induction or a large stroke), these rods are a great investment.**

- An **oversized crankshaft** (e.g., 3.0" or 3.25" stroke)

- **ARP main and rod bolts**

- **Reinforced block (if needed)**

- **Upgraded pistons, rings, and oil system**

- **Proper fueling and ignition upgrades**

- **Have a professional mechanic oversee the installation** to ensure everything is correctly assembled.

- **If you re on a budget or only want mild improvements**, consider **stock-length rods with ARP bolts** or **milder aftermarket rods** (e.g., from **JE, Scat, or Eagle**) before committing to a full oversized rod build.

- **If you re unsure about supporting mods**, start with **smaller upgrades** (e.g., headers, exhaust, fuel system) before tackling a rod swap.

**Final Verdict:** These rods are **one of the best options for a Triumph big-block build**, but they demand **respect, proper support, and expertise** to work correctly. If you re committed to the project, they will significantly enhance your engine s power and durability. If not, they may end up being an unnecessary expense.

Details:

It begins from the date purchased. V Certification Con Rods, Type: Forged 4340 aircraft chrome moly quality steel for racing, H-beam Conrod Quantity: 6 Pieces as showing in picture, Bolts: Including ARP 2000 bolts, Note: Extra cost upgrading to L19 Bolts Size: 5/16 Tolerance: Balanced /- 1 gram set, Piston Bolt Hole: -4/1000mm, Power: 600hp 800PS per Strength of the fastening PSI: 220,000/230,000 PSI Torque: 48ft 65 NM, Top acceleration: 7000rpm, warranty: Year warranty any manufacturing defect. >>you might also like. For Triumph TR5 TR250 GT6 TR6 late model.

Fast Shipping. offers a minimum one year, unlimited mileage warranty on most of parts sold, some are otherwise noted longer manufacturer Best Costumer Service. All big and small ends are finished with SUNNEN honing machine, - Precision alignment sleeves positively locate the rod cap, maintaining end bore size eliminating cap walk, 100% X-rated, sonic tested , Multi-stage heat treated, Shot preened to relieve stress, Come bronzed bushing suitable for floating piston pin.

Factory Warranty. To length : 146.05mm, Big end diameter: 51.34mm, Small 20.63mm, width : 22.8mm, 18mm.

part #: d0ph1z prices

• $389.76-$599.99

specifications pistonrinro:

• for models: Tr5, Gt6, Tr6
• for makes: Triumph
• brand: Maxpeedingrods
• mpn: D0ph1z
• part type: Rod
• big end diameter: 51.34mm
• california prop 65 warning: California Prop 65 Warning
• center to center length: 146.05mm
• fitment type: Performance/custom
• manufacturer warranty: 2 Year
• 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

seller pistonrinro:

• city: Elk Grove Village, Illinois
• rating: 99.7%
• # reviews: 1463

shipping pistonrinro:

• class: Standard
• type: Fixed
• cost: $0.00
• service: FedEx Ground / FedEx Home Delivery
• transit: 3-6 Days
• carrier: FedEx

payments pistonrinro:

• other
• wallet: Apple-pay
• credit card: Diners-club

general pistonrinro:

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

offer pistonrinro:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0
• best offers: True
• started: May 9, 2026

returns pistonrinro:

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

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