1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 13382526464323722
  3. TRW P1136-005

TRW P1136-005 Wrist Pins Ci Cylinder 6-OVERSIZE 261

fits make: Chevrolet. year: 1954–1962.

P1136 Trw 005 6-oversize Wrist Pins 1954-1962 Chevrolet Truck 261 Ci 6 Cylinder

( Brand: Trw ), ( Manufacturer Part Number: P1136-005 ), ( Type: Wrist Pins ), ( Items Included: 6 Oversize Wrist Pins ), ( Material: Cast Iron ), ( Vintage Part: Yes ), ( Country Of Origin: United States ), ( Performance Part: No )

Review TRW 005 6-oversize Wrist Pins Chevrolet Truck 261 Ci Cylinder fits 1954–1962

The **TRW P1136-005 6-oversize wrist pins** are a meticulously engineered, high-performance replacement part designed specifically for the **1954 1962 Chevrolet 261 cubic inch inline-six engine**, a legendary powerplant known for its durability and classic muscle car heritage. These wrist pins are crafted from **chrome-molybdenum steel**, a premium alloy that delivers exceptional strength, wear resistance, and longevity, ensuring they can withstand the demands of high-performance applications, heavy loads, and extended engine life. Unlike standard wrist pins, these **oversize (0.030" above nominal size) pins** provide a tighter fit within the piston, reducing lateral play and minimizing wear on the piston pin bushings critical for maintaining compression and preventing oil leakage in high-revving or modified engines. The precision-machined design ensures a seamless fit within the **Chevrolet 261 s cast-iron pistons**, reducing friction and heat buildup while enhancing overall engine efficiency. Whether you're restoring a vintage Corvette, a high-performance Bel Air, or a classic pickup truck, these TRW wrist pins are an ideal upgrade for enthusiasts seeking reliability, performance, and long-term durability. Built to exacting specifications, they are fully compatible with aftermarket pistons and are often recommended by engine builders for both stock and modified applications, making them a trusted choice for maintaining or enhancing the power and longevity of your 261 inline-six.

### **Pros and Cons of Buying TRW P1136 005 6-Oversize Wrist Pins for a 1954-1962 Chevrolet 261 CI Engine**

#### **Pros:**

1. **Improved Durability** Oversize wrist pins are thicker than standard pins, reducing wear on the piston and connecting rod. This can extend the life of your engine, especially if you run it hard or modify it for performance.

2. **Better Heat Dissipation** Larger pins distribute heat more evenly, reducing localized stress and potential failure points, which is beneficial in high-RPM or forced-induction applications.

3. **Compatibility with Stock Engines** These pins are designed specifically for the 261 CI Chevy engine, ensuring a proper fit without requiring modifications to the piston or rod.

4. **Cost-Effective Upgrade** Compared to full engine rebuilds or custom pistons, oversize pins are a relatively inexpensive way to enhance reliability, especially if you plan to keep the engine in service for years.

5. **Prevents Premature Failure** If your engine has signs of wear (oil consumption, knocking, or excessive piston-to-wall clearance), upgrading to oversize pins can help prevent catastrophic failure before it happens.

6. **Easy Installation** These pins are direct replacements for stock pins, meaning no major disassembly is required beyond removing the rod bearings and pistons.

7. **Aftermarket Support** TRW is a reputable manufacturer, and these pins are widely available through performance parts suppliers, making sourcing and installation straightforward.

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#### **Cons:**

1. **Limited Oversizing Options** The P1136 005 pins are only slightly oversized (typically 0.010" to 0.015" over stock). If your engine has significant wear, you may need even larger pins or a full piston rebuild.

2. **No Guarantee Against Other Wear Issues** If the connecting rods, pistons, or crankshaft are worn beyond acceptable limits, oversize pins alone won t fix those problems. A full inspection is necessary.

3. **Potential Clearance Concerns** If the cylinder bore is stretched or the piston is undersized, oversize pins could cause binding or interference. Always check rod-to-wall clearance and piston-to-bore clearance before installation.

4. **Cost of Associated Work** While the pins themselves are affordable, labor costs for disassembly, inspection, and reassembly can add up, especially if you re not experienced with engine work.

5. **Not a Permanent Fix for Severe Wear** If the engine has been abused (e.g., seized rods, cracked pistons, or excessive scoring), oversize pins may not be enough you may need a full rebuild with new rods, pistons, and bearings.

6. **Risk of Over-Tightening** If the rod bolts are not torqued correctly, oversize pins could lead to stress concentrations, potentially causing rod failure. Always follow manufacturer torque specs.

7. **Limited Availability of Replacement Parts** If something goes wrong during installation (e.g., a pin gets stuck), finding a replacement on short notice may be difficult compared to more common engine components.

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### **Conclusion:**

The **TRW P1136 005 oversize wrist pins** are a **wise upgrade** for a 1954-1962 Chevrolet 261 CI engine if you re experiencing or anticipating wear-related issues. They offer a **cost-effective way to improve reliability**, especially for high-mileage or modified engines. However, they are **not a cure-all** a thorough inspection of the entire rod/piston assembly is essential before installation.

If your engine is running smoothly with no signs of excessive wear, these pins may not be necessary. But if you re planning long-term use, performance modifications, or have noticed symptoms like oil consumption or knocking, upgrading to oversize pins is a **practical preventive measure**.

### **Recommendation:**

- **If your engine shows signs of wear (oil leaks, knocking, or high compression loss):** Install the TRW oversize pins as part of a **rod/piston inspection and maintenance routine**. Pair this with checking rod bearings, piston-to-wall clearance, and rod bolt condition.

- **If your engine is stock and running well:** Skip the oversize pins unless you re planning aggressive modifications (turbocharging, forced induction, or high-RPM operation).

- **If you re unsure about the condition of your rods or pistons:** Have a **trusted mechanic perform a full inspection** before proceeding. Consider a **full piston rebuild kit** if wear is severe.

- **Always follow installation guidelines** use proper lubrication, torque rod bolts correctly, and ensure no debris enters the cylinder bore during assembly.

**Final Verdict:** These pins are a **solid, low-risk upgrade** for engines needing extra durability, but they should be part of a **bigger maintenance or rebuild strategy**, not a standalone fix.

Details:

THEY WERE USED IN 1954-1962 CHEVROLET TRUCKS. 6 005 OVERSIZE WRIST PINS FIT GM CYLINDER 261CI.

part #: p1136005 price

  • $38.25

specifications pistonrinro:

  • for makes: Chevrolet
  • for years: 1954-1962
  • brand: Trw
  • mpn: P1136-005
  • type: Wrist Pins
  • items included: 6 Oversize Wrist Pins
  • material: Cast Iron
  • vintage part: Yes
  • country of origin: United States
  • performance part: No

offer pistonrinro:

  • options: Ship-to-home
  • best offers: True
  • availability: In Stock
  • quantity: 1
  • started: April 30, 2026
  • sold: 0

returns pistonrinro:

  • policy: Returns Accepted
  • time: 30 Days
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shipping pistonrinro:

  • cost: $14.85
  • service: USPS Ground Advantage, USPS Priority Mail
  • type: Calculated
  • transit: 4-7 Days
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seller pistonrinro:

  • city: Wadena, Minnesota
  • # reviews: 727
  • rating: 100.0%

general pistonrinro:

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

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for makes: chevrolet, for years: 1954-1962, type: wrist pins, items included: 6 oversize wrist pins, vintage part: yes, country of origin: united states, performance part: no,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: cast iron, sku: 13382526464323722,
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  • New. Offer #1 priced at $38.25 + $0.00 shipping estimate = $38.25* total. 3 3/8 LONG. NEW SET OF TRW PISTON PINS.FREE SHIPPING

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