1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 13412528520094752
  3. MAXPEEDINGRODS Y0A9B6

MAXPEEDINGRODS Y0A9B6 Steel Connecting Rods Bolts Conrod Kit

fits model: Tr3, Tr4. make: Triumph. year: 1961–1965.

Y0a9b6 Maxpeedingrods Steel Connecting Rods Bolts Conrod With Kit For Triumph Tr3 Tr4 1961-1965

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: Y0A9B6 ), ( Part Type: Rod Bolt ), ( Big End Diameter: 56.72mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center To Center Length: 158.75mm ), ( Country Of Origin: China ), ( 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 4 Pieces ), ( Small End Diameter: 22mm ), ( Warranty: 2 Year ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS Steel Connecting Rods Bolts Conrod Kit Triumph fits TR3 TR4 1961–1965

The **Maxpeedingrods Y0A9B6 Steel Connecting Rods and Bolts Kit** is a meticulously engineered aftermarket upgrade designed exclusively for the classic Triumph TR3 and TR4 models produced between 1961 and 1965. This high-performance kit replaces the stock aluminum connecting rods and bolts with a robust set of **forged steel rods and precision-machined, high-strength bolts**, significantly enhancing the structural integrity and durability of your engine. The rods are crafted from **chromoly steel**, a material renowned for its exceptional strength-to-weight ratio, ensuring they can withstand the increased stresses of forced induction or aggressive driving without flexing or deforming. Each rod is dynamically balanced and features a **smooth, polished finish** for optimal performance and longevity, while the accompanying **Grade 8.8 or higher bolts** are designed to maintain precise preload under extreme conditions, reducing the risk of rod bolt stretch or failure. This kit is ideal for enthusiasts seeking to push their classic Triumph s power output while maintaining reliability, making it a perfect choice for both street applications and light track use. Whether you're preparing your TR for a spirited drive on winding roads or a weekend at the track, the Maxpeedingrods Y0A9B6 kit delivers the strength and precision needed to keep your engine running at its best.

**Pros and Cons of buying a Maxpeedingrods Y0A9B6 Steel Connecting Rods Bolt and Conrod Kit for Triumph TR3/TR4 (1961 1965)**

### **Pros**

1. **Material Quality and Durability**

The kit features forged steel connecting rods and bolts, which are significantly stronger and more durable than the original cast-iron rods and bolts. This reduces the risk of catastrophic failure, especially under high stress or forced induction. Forged steel rods are also less prone to fatigue, making them ideal for high-performance applications.

2. **Enhanced Performance**

Steel rods have a higher strength-to-weight ratio compared to cast-iron, allowing for better power transfer from the piston to the crankshaft. This can improve engine efficiency, especially when paired with higher compression ratios or forced induction. The kit is designed to handle increased stress, making it suitable for tuning projects.

3. **Compatibility and Fitment**

The Y0A9B6 kit is specifically engineered for the Triumph TR3/TR4 engines from 1961 to 1965. It includes all necessary components, such as bolts, washers, and sometimes gaskets, ensuring a complete replacement solution. Proper fitment reduces the risk of installation errors that could compromise engine integrity.

4. **Aftermarket Support and Reputation**

Maxpeedingrods is a well-regarded brand in the aftermarket performance parts industry, known for producing high-quality, precision-engineered components. Their kits are often backed by good customer support, warranties, and detailed installation guides, which can be invaluable for DIY enthusiasts.

5. **Potential for Increased Reliability**

If the original rods or bolts were compromised (e.g., due to age, corrosion, or previous modifications), replacing them with new steel rods can significantly improve engine reliability. This is particularly important for classic cars that may not have been maintained as rigorously as modern vehicles.

6. **Customization and Tuning Potential**

The kit allows for further modifications, such as adjusting rod length or using high-performance bolts, which can optimize engine balance and power output. This makes it a versatile choice for both stock restorations and aggressive tuning projects.

---

### **Cons**

1. **Cost**

High-quality steel connecting rod kits are more expensive than original or aftermarket cast-iron alternatives. The price reflects the superior material and craftsmanship, but it may be a significant investment for a classic car project. Budget-conscious buyers might opt for lower-cost options, though with trade-offs in performance and longevity.

2. **Installation Complexity**

Replacing connecting rods is a labor-intensive process that typically requires removing the engine from the vehicle, disassembling the crankshaft, and carefully measuring and installing the new rods. This is not a beginner-friendly job and may require professional assistance, adding to the overall cost. Mistakes during installation (e.g., incorrect rod length or torque specifications) can lead to serious engine damage.

3. **Potential for Overkill**

If the engine is not heavily modified or subjected to extreme stress (e.g., forced induction or high RPMs), the benefits of steel rods may be marginal compared to the cost. For a stock or lightly tuned TR3/TR4, the original cast-iron rods might suffice with proper maintenance. However, steel rods are still a wise upgrade for longevity.

4. **Weight Considerations**

While steel rods are stronger, they are also heavier than cast-iron rods. In a classic car where weight reduction is desirable for handling or fuel efficiency, this may be a minor drawback. However, the performance gains from steel rods often outweigh this consideration for most enthusiasts.

5. **Availability of Parts**

While Maxpeedingrods is a reputable brand, availability can vary depending on region or supplier. Some classic car parts can be harder to source, and delays in shipping may occur. It s wise to order in advance and verify compatibility with the specific engine variant.

6. **Potential for Misuse**

Steel rods are not a "fix-all" solution. If other engine components (e.g., crankshaft, pistons, or bearings) are worn or inadequate, the rods alone will not prevent failure. A full engine rebuild or upgrade may be necessary for optimal performance, which adds to the project s complexity and cost.

---

### **Conclusion**

The Maxpeedingrods Y0A9B6 steel connecting rod and bolt kit is an excellent choice for Triumph TR3/TR4 owners who prioritize engine durability, performance, and reliability especially for modified or high-stress applications. The forged steel rods and bolts offer superior strength, longevity, and compatibility with modern tuning practices. However, the kit is not without drawbacks: it is expensive, requires skilled installation, and may be overkill for stock or lightly used engines.

For enthusiasts planning to push their engines beyond stock specifications (e.g., with forced induction, high compression, or aggressive tuning), the investment in this kit is justified. It reduces the risk of catastrophic failure and enhances overall engine performance. Conversely, buyers on a tight budget or those restoring a stock engine may find the cost prohibitive and opt for alternative solutions.

---

### **Recommendation**

**Buy the Maxpeedingrods Y0A9B6 kit if:**

- You are modifying your TR3/TR4 engine (e.g., forced induction, high compression, or aggressive tuning).

- You prioritize long-term reliability and want to avoid the risk of rod or bolt failure.

- You are comfortable with or willing to pay for professional installation due to the complexity of the job.

- You have verified that the kit is compatible with your specific engine variant and other components (e.g., crankshaft, pistons).

**Consider alternatives if:**

- Your engine is stock or lightly modified, and you are on a budget. In this case, a high-quality cast-iron rod kit or thorough maintenance of the original rods may suffice.

- You lack the mechanical skill or tools to install the rods safely. Improper installation can lead to severe engine damage.

- You are unsure about the condition of other engine components (e.g., crankshaft, bearings). A full engine assessment may be needed before upgrading rods.

**Final Verdict:**

For the serious enthusiast looking to maximize performance and reliability in their Triumph TR3/TR4, the Maxpeedingrods Y0A9B6 kit is a strong recommendation. It strikes a balance between quality, compatibility, and aftermarket support, making it one of the best options for this classic engine. However, weigh the cost and installation requirements carefully to ensure it aligns with your project goals.

Details:

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. All messages. Suspension Masters US. Factory Warranty.

Best Costumer Service. For Triumph TR3 TR4. Guaranteed Fitment Always the correct part. V PRODUCT TEST AND ISO 9001 CERTIFIED, Type: Forged 4340 aircraft chrome moly quality steel for racing, H-beam Conrod Quantity: 4 Pieces a set, Bolts:Including ARP 2000 bolts, Note: Extra cost upgrading to L19 Bolts Size: 3/8 Tolerance: Balanced /- 1 gram in 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: 9000rpm, warranty: Year warranty any manufacturing defect.

Center to length : 158.75mm, Big end diameter: 56.72mm, Small 22.22mm, width : 29.85mm, 26.92mm.

specifications pistonrinro:

  • for models: Tr3, Tr4
  • for makes: Triumph
  • for years: 1961-1965
  • brand: Maxpeedingrods
  • mpn: Y0a9b6
  • part type: Rod Bolt
  • big end diameter: 56.72mm
  • california prop 65 warning: California Prop 65 Warning
  • center to center length: 158.75mm
  • country of origin: China
  • 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 4 Pieces
  • small end diameter: 22mm
  • warranty: 2 Year
  • weight tolerance: Balanced To / 1 Gram In Set

returns pistonrinro:

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

seller pistonrinro:

  • rating: 99.6%
  • # reviews: 16304
  • city: Houston, Texas

shipping pistonrinro:

  • transit: 4-8 Days
  • cost: $0.00
  • carrier: FedEx
  • type: Fixed
  • class: Standard
  • service: FedEx Ground / FedEx Home Delivery

payments pistonrinro:

  • credit card: Discover
  • wallet: Apple-pay
  • other

offer pistonrinro:

  • sold: 0
  • started: May 3, 2026
  • availability: In Stock
  • best offers: True
  • quantity: 3
  • options: Ship-to-home

general pistonrinro:

  • Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts
  • condition: New
for models: tr3, tr4, for makes: triumph, for years: 1961-1965, part type: rod bolt, big end diameter: 56.72mm, california prop 65 warning: california prop 65 warning, center to center length: 158.75mm, country of origin: china, fitment type: performance/custom, note: no instruction included, notice: this is aftermarket replcement part, pin type: bronzed bushing floating pin, quantity: 1 set of 4 pieces, small end diameter: 22mm, warranty: 2 year, 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: 13412528520094752,
Maxpeedingrods Y0A9B6 Is Similar To:

Copyright © pistonrinro.com