1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 13535481923619604
  3. MAXPEEDINGRODS B2IEJ8

MAXPEEDINGRODS B2IEJ8 Forged Connecting Rods Bolts Abarth 4X 4340 155 131 16V

fits model: Q4, Romeo. make: Alfa, Fiat.

B2iej8 Maxpeedingrods 4x 4340 Forged Connecting Rods Bolts For Alfa Romeo 155 Q4 Fiat Abarth 131 16v

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: B2IEJ8 ), ( Part Type: Rod Bolt ), ( Big End Diameter: 53.91mm ), ( Big End Width: 25.7mm ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Center To Center Length: 145mm ), ( Country Of Origin: China ), ( Fit: For Fiat Lancia Delta 2.0 1.6v Turbo, For Fiat Abarth 131 2.0 8valve, For Alfa 155 Q4 ), ( 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: Front ), ( Quantity: 4 Pieces As Showing In Picture ), ( Small End Diameter: 22mm ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS 4x 4340 Forged Connecting Rods Bolts Alfa 155 Fiat Abarth 131 16v fits ROMEO Q4

The **Maxpeeding Rods B2IJE8 4x 4340 Forged Connecting Rod Bolts** represent a premium upgrade for high-performance engines, specifically engineered to meet the demanding requirements of the **Alfa Romeo 155 Q4, Fiat Abarth 131 16V, and other high-revving, torque-focused powerplants**. Crafted from **4340 alloy steel**, these bolts are not only forged for exceptional strength and durability but also undergo a meticulous heat-treatment process to achieve an optimal balance of hardness and elasticity. This ensures they can withstand extreme stress, high RPM loads, and the relentless forces generated by aggressive engine modifications, such as forced induction or high-compression tuning. The **threaded design** is precision-machined to exact specifications, guaranteeing a secure and consistent fit with the rod caps, while the **locking feature** (if applicable) prevents loosening under dynamic conditions, a critical safety consideration for engines pushing beyond factory limits. These bolts are a direct replacement for OEM components, maintaining the same thread pattern and bolt pattern dimensions, ensuring compatibility without the need for modification. Ideal for enthusiasts seeking to enhance reliability in their high-performance builds, these **Maxpeeding Rods bolts** are a testament to engineering precision, designed to elevate performance while maintaining structural integrity under the most demanding operating conditions.

### **Pros and Cons of Buying Maxpeedingrods B2IJE8 4x4340 Forged Connecting Rod Bolts for Alfa Romeo 155 Q4, Fiat Abarth 131 16V**

#### **Pros:**

1. **High-Strength Material (4340 Forged Steel)** These bolts are made from 4340 alloy steel, which is known for its excellent strength-to-weight ratio, durability, and resistance to fatigue. This makes them ideal for high-performance and modified engines where stress on the connecting rods is significantly increased.

2. **Precision Machining** Maxpeedingrods specializes in high-quality, precision-engineered components. The bolts are likely to be manufactured to tight tolerances, ensuring proper fitment and reliability.

3. **Heat and Corrosion Resistance** 4340 steel is heat-treated to improve hardness and resistance to wear, which is beneficial in high-temperature environments like forced induction or high-RPM applications.

4. **Compatibility with Performance Modifications** If you re running a turbocharged, supercharged, or nitrous-injected engine, these bolts will better handle the increased loads compared to stock bolts, reducing the risk of failure.

5. **Aftermarket Reputation** Maxpeedingrods is a well-regarded brand in the performance aftermarket, known for producing reliable and high-quality components for European performance cars.

6. **Easier Installation (4x Bolts)** Unlike some aftermarket kits that require custom machining or multiple bolts, these are standard-length bolts that should fit without major modifications, assuming the rod caps are compatible.

7. **Cost-Effective Upgrade** Compared to full rod sets or custom machining, replacing just the bolts is a relatively inexpensive way to significantly improve engine reliability.

---

#### **Cons:**

1. **Potential Overkill for Stock Engines** If your engine is stock or only lightly modified, these bolts may be more expensive than necessary. Stock bolts are often sufficient for stock power levels, and upgrading may not provide noticeable benefits unless you re pushing the engine hard.

2. **Compatibility Concerns** While these bolts are designed for the specified applications, there is always a risk of misalignment or improper fitment if the rod caps or engine block has been modified. Ensure the bolt length and threading match your specific setup.

3. **Installation Difficulty** These bolts require proper torque specifications (typically higher than stock) and may need to be torqued in stages to avoid overstressing the rod caps. Improper installation can lead to failure.

4. **Cost Compared to Stock** Replacing just the bolts will be more expensive than using OEM parts, especially if you re on a tight budget. The cost may not justify the upgrade unless you re planning significant power increases.

5. **Limited Warranty or Return Policy** Some aftermarket parts come with limited warranties or no returns if installed incorrectly. Always check Maxpeedingrods policies before purchasing.

6. **Potential for Over-Tightening** Because these bolts are stronger, there s a risk of overtightening if the installer isn t experienced, which could lead to rod cap distortion or engine damage.

7. **Not a Complete Solution** While these bolts improve reliability, they should be part of a broader engine upgrade plan. If you re running extreme power levels, you may also need upgraded rods, pistons, or crankshafts.

---

### **Conclusion:**

Maxpeedingrods B2IJE8 4x4340 forged connecting rod bolts are a solid choice for enthusiasts running modified engines (especially turbocharged or supercharged) on the Alfa Romeo 155 Q4 or Fiat Abarth 131 16V. They offer significant strength improvements over stock bolts and are well-suited for high-performance applications. However, they may not be necessary for stock or lightly modified engines, where stock bolts could suffice.

If you re planning to push your engine beyond stock power levels, these bolts are a worthwhile upgrade. Just ensure proper installation, torque specifications, and compatibility with your specific build.

### **Recommendation:**

- **Buy if:** You re running forced induction, nitrous, or significant power increases (250 hp or higher) and want to future-proof your engine against rod bolt failure.

- **Skip if:** Your engine is stock or only mildly modified, and you re not planning major power gains. In that case, stock bolts or a budget aftermarket option may be sufficient.

- **Additional Tips:**

- Always follow the manufacturer s torque specifications (typically around 80-100 ft-lbs, depending on the kit).

- Consider upgrading rod caps or using a rod bolt kit that includes washers for better load distribution.

- If in doubt, consult a trusted mechanic or performance tuner before installation.

For most high-performance builds, these bolts are a smart investment in long-term reliability.

Details:

Telephone number. Advertised Horsepower Rating:200HP/piece, Top acceleration: 9000rpm, package size 28CM 21CM 10CM. V PRODUCT TEST AND ISO 9001 CERTIFIED, Fast Shipping.

For Alfa Romeo 155 Q4 2.0 16v, Fiat Lancia Delta 16v Turbo, Abarth 131, HF Integrale1989-1991, Pin Type: Floating Piston. Guaranteed, Fitment Always the correct part. PRODUCT DISPLAY 4x 4340 Forged Connecting Rods Bolts for Alfa Romeo 155 Q4 Fiat Abarth 131 16V.

specifications pistonrinro:

  • for models: Q4, Romeo
  • for makes: Alfa, Fiat
  • brand: Maxpeedingrods
  • mpn: B2iej8
  • part type: Rod Bolt
  • big end diameter: 53.91mm
  • big end width: 25.7mm
  • california prop 65 warning: California Prop 65 Warning
  • center to center length: 145mm
  • country of origin: China
  • fit: For Fiat Lancia Delta 2.0 1.6v Turbo, For Fiat Abarth 131 2.0 8valve, For Alfa 155 Q4
  • 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: Front
  • quantity: 4 Pieces As Showing In Picture
  • small end diameter: 22mm
  • weight tolerance: Balanced To / 1 Gram In Set

general pistonrinro:

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

returns pistonrinro:

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

offer pistonrinro:

  • best offers: True
  • quantity: 2
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: May 10, 2026

payments pistonrinro:

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

seller pistonrinro:

  • rating: 99.5%
  • city: Rowland height, California
  • # reviews: 3740

shipping pistonrinro:

  • service: FedEx Ground / FedEx Home Delivery
  • type: Fixed
  • class: Standard
  • cost: $0.00
  • transit: 4-8 Days
  • carrier: FedEx
for models: q4, romeo, for makes: alfa, fiat, part type: rod bolt, big end diameter: 53.91mm, big end width: 25.7mm, california prop 65 warning: california prop 65 warning, center to center length: 145mm, country of origin: china, fit: for fiat lancia delta 2.0 1.6v turbo, for fiat abarth 131 2.0 8valve, for alfa 155 q4, note: no instruction included, notice: this is aftermarket replcement part, pin type: bronzed bushing floating pin, placement on vehicle: front, quantity: 4 pieces as showing in picture, small end diameter: 22mm, 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: 13535481923619604,
Maxpeedingrods B2IEJ8 Is Similar To:

Copyright © pistonrinro.com