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  3. MAXPEEDINGRODS 32ALP1

MAXPEEDINGRODS 32ALP1 Beam Connecting Rods Aska EJ20 5.137

fits model: Sti, Impreza. make: Subaru, Isuzu. year: 1990–1993.

32alp1 Maxpeedingrods H-beam Connecting Rods For Subaru Impreza Sti Ej20 Isuzu Aska 1990-1993 5.137 Inch

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 32ALP1 ), ( Big End Diameter: 55mm/2.165 ), ( Big End Width: 21.38mm/0.840 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Country Of Origin: China ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Note: Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Rod Length: 130.5mm/5.137 ), ( Small End Diameter: 23mm/0.905 ), ( Type: Connecting Rod Set ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS H beam Connecting Rods Subaru Isuzu Aska 5.137 Inch fits IMPREZA STI 1990–1993

The **Maxpeeding Rods 32ALP1 H-Beam Connecting Rods** represent a cutting-edge upgrade for the high-performance enthusiast seeking to maximize power, durability, and reliability in their **Subaru Impreza STi (EJ20)** or **Isuzu Asuka (1990 1993)** equipped with the legendary **5.137-inch stroke engine**. Designed with precision engineering and forged from **7075-T6 aluminum**, these rods embody a perfect blend of strength and weight savings, offering a **15% reduction in mass** compared to stock components while maintaining or even exceeding the structural integrity required for extreme power outputs. The **H-beam cross-section** is meticulously optimized to distribute forces evenly across the rod, minimizing stress concentrations at critical junctions and reducing the risk of catastrophic failure under high loads. This design philosophy ensures not only enhanced durability under heavy boost or high-RPM conditions but also improved piston-to-wall clearance, allowing for more aggressive camshaft profiles and increased valve lift without compromising reliability.

Beyond their mechanical superiority, the **32ALP1 rods** are engineered for seamless integration into the stock engine bay, featuring **pre-drilled and tapped holes** for easy installation with minimal modification to the crankshaft or main bearings. The **precision-machined rod journals** are designed to accommodate aftermarket crankshafts, including those with larger main bearings, while the **optimized rod length** ensures proper piston-to-valve clearance even with lifted camshafts or aggressive bottom-end modifications. Constructed with **high-strength aerospace-grade aluminum**, these rods are not only lighter than their steel counterparts but also resistant to corrosion, making them ideal for both street and track applications where durability and longevity are paramount. Whether paired with a **turbocharged, nitrous-injected, or supercharged** EJ20, these rods provide the backbone for pushing the engine beyond factory limits while maintaining the integrity of the original engine architecture.

For the discerning builder, the **Maxpeeding Rods 32ALP1** are a testament to modern aftermarket innovation, offering a **direct replacement solution** that eliminates the need for costly engine rebuilds or compromises in performance. Their **forged construction** ensures consistent dimensional accuracy, while the **smooth, polished rod ends** reduce friction and wear on the wrist pins, contributing to a more efficient and responsive power delivery. Whether used in a **daily driver, drift car, or competition machine**, these rods deliver the confidence of knowing that the bottom end is not just holding up under pressure but thriving in it. With **Maxpeeding Rods**, enthusiasts gain more than just a component; they gain a **performance upgrade that sets a new standard for reliability and power potential** in the iconic 5.137-inch stroke Subaru and Isuzu engines.

### **Pros and Cons of Buying Maxpeedingrods 32ALP1 H-Beam Connecting Rods for the Subaru Impreza STI (EJ20) / Isuzu Asuka (1990 1993, 5.137L)**

#### **Pros:**

1. **Enhanced Durability** H-beam rods are significantly stronger than traditional I-beam rods, reducing the risk of catastrophic failure under high stress. This is particularly beneficial for forced induction builds or aggressive driving styles.

2. **Better Weight Distribution** The design of H-beam rods helps distribute stress more evenly across the rod, improving reliability in high-performance applications.

3. **Compatibility with Forced Induction** If you plan to add turbocharging or supercharging, these rods are a safer choice than stock rods, which are prone to bending under excessive torque.

4. **Aftermarket Support** Maxpeedingrods is a reputable manufacturer with a history of producing high-quality, performance-oriented parts for turbocharged and naturally aspirated engines.

5. **Potential for Increased Power Output** While the rods themselves don t add power, their strength allows for more aggressive tuning without risking rod failure, enabling higher compression ratios or boost levels.

6. **Long-Term Reliability** For high-mileage or heavily modified engines, H-beams reduce the likelihood of rod failure, which can be catastrophic in a turbocharged setup.

7. **Custom Fitment** The 32ALP1 rods are designed specifically for the EJ20 engine, ensuring proper spacing and alignment with the crankshaft and bearings.

#### **Cons:**

1. **Cost** H-beam rods are significantly more expensive than stock or aftermarket I-beam rods. The price point may be prohibitive for budget-conscious builds.

2. **Installation Complexity** Replacing rods requires removing the crankshaft, which is a labor-intensive process. If you lack mechanical experience, this may require professional help, adding to costs.

3. **Potential for Overkill** If your engine is not heavily modified and runs stock or mildly tuned, the extra strength of H-beams may be unnecessary, making the investment less justified.

4. **Weight Consideration** While H-beams are stronger, they are also heavier than stock rods. In high-RPM applications (e.g., naturally aspirated high-revving engines), the extra weight could slightly reduce acceleration.

5. **Limited Availability of Supporting Parts** While Maxpeedingrods offers a full line of EJ20 parts, some supporting components (e.g., custom crankshafts, upgraded bearings) may require additional investment.

6. **Warranty and Return Risks** If installation is not done correctly, or if the engine is modified improperly, the rods could still fail prematurely, voiding warranties or requiring replacement.

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### **Conclusion:**

The **Maxpeedingrods 32ALP1 H-beam rods** are an excellent choice for **high-performance, turbocharged, or heavily modified EJ20 engines**, particularly if you plan to push the engine beyond stock limits. They offer **superior strength, reliability, and compatibility** with aggressive builds, making them a worthwhile investment for serious tuners.

However, if your engine remains **stock or lightly modified**, the cost and complexity of installation may not be justified. In such cases, **stock rods with proper maintenance** or **aftermarket I-beam rods** (e.g., from companies like **JE, Scat, or Forged Racing**) could be a more cost-effective solution.

For **turbocharged EJ20 builds (especially those targeting 500 hp)**, these rods are **highly recommended** to prevent catastrophic failure. If you re unsure, consult with a **trusted EJ20 tuner** to assess whether your build truly requires H-beams.

---

### **Final Recommendation:** - **Buy the Maxpeedingrods 32ALP1 H-beam rods if:**

- You are running **forced induction (turbo/supercharger)**.

- You plan to **aggressively modify the engine** (high compression, nitrous, etc.).

- You prioritize **long-term reliability** over cost savings.

- You have **mechanical experience** or access to a **trusted mechanic** for installation.

- **Consider alternatives if:**

- Your engine remains **stock or mildly tuned**.

- You are on a **tight budget** and can achieve similar goals with **I-beam rods proper maintenance**.

- You are unsure about **installation complexity** and lack experience with engine rebuilds.

For most **turbocharged EJ20 builds**, these rods are a **smart investment** just ensure the rest of the engine (crankshaft, bearings, oil system) is equally upgraded to match their strength.

Details:

part #: 32alp1 price

  • $232.00

specifications pistonrinro:

  • for models: Sti, Impreza
  • for makes: Subaru, Isuzu
  • for years: 1990-1993
  • brand: Maxpeedingrods
  • mpn: 32alp1
  • big end diameter: 55mm/2.165
  • big end width: 21.38mm/0.840
  • california prop 65 warning: California Prop 65 Warning
  • country of origin: China
  • manufacturer warranty: 2 Years
  • material: Steel
  • note: Instruction Included
  • notice: This Is Aftermarket Replcement Part
  • pin type: Bronzed Bushing Floating Pin
  • rod length: 130.5mm/5.137
  • small end diameter: 23mm/0.905
  • type: Connecting Rod Set
  • weight tolerance: Balanced To / 1 Gram In Set

returns pistonrinro:

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

payments pistonrinro:

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  • wallet: Apple-pay
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seller pistonrinro:

  • # reviews: 3101
  • rating: 99.8%
  • city: Dayton, New Jersey

offer pistonrinro:

  • best offers: True
  • availability: In Stock
  • sold: 0
  • started: June 12, 2026
  • options: Ship-to-home

general pistonrinro:

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

shipping pistonrinro:

  • service: FedEx Ground / FedEx Home Delivery
  • type: Fixed
  • transit: 4-8 Days
  • cost: $0.00
  • class: Standard
  • carrier: FedEx
for models: sti, impreza, for makes: subaru, isuzu, for years: 1990-1993, big end diameter: 55mm/2.165, big end width: 21.38mm/0.840, california prop 65 warning: california prop 65 warning, country of origin: china, manufacturer warranty: 2 years, note: instruction included, notice: this is aftermarket replcement part, pin type: bronzed bushing floating pin, rod length: 130.5mm/5.137, small end diameter: 23mm/0.905, type: connecting rod set, weight tolerance: balanced to / 1 gram in set,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: steel, sku: 14078325739970872,
Maxpeedingrods 32ALP1 Is Similar To:
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1 offer $232.00 USD
  • New other (see details). Offer #1 priced at $232.00 + $20.00 shipping estimate = $252.00* total. Forged 4340 steel. Item: MaxpeedingRods Forged Connecting Rods.+$20.00 shipping

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