1. Engine Crankshafts Products
  2. sku: 20037800238562892
  3. DORMAN OE SOLUTIONS SX-1173

DORMAN OE SOLUTIONS SX-1173 Engine Harmonic Balancer Kingswood 5.7L V8

fits make: Chevrolet. year: 1969–1972.

Sx-1173 Dorman - Oe Solutions Engine Harmonic Balancer For 1969-1972 Chevrolet Kingswood 5.7l V8 Sf

( Brand: Dorman Oe Solutions ), ( Manufacturer Part Number: SX-1173 ), ( Manufacturer Warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part ), ( Item Weight: 8.6300 ), ( Ipn: C359 32-61 ), ( Placement On Vehicle: Engine Cylinder Block ), ( Compatible Model: Kingswood ), ( Compatible Year: 1972 1971 1970 1969 ), ( Core Charge: Free No Core Charge ), ( Type: Engine Harmonic Balancer ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Dorman Engine Harmonic Balancer )

Review DORMAN OE SOLUTIONS Engine Harmonic Balancer Chevrolet Kingswood 5.7l V8 Sf fits 1969–1972

The **Dorman SX-1173 Engine Harmonic Balancer** is a precision-engineered replacement part designed specifically for the iconic 1969 through 1972 Chevrolet Kingswood models equipped with the legendary **5.7L (348 cubic inch) Small Block V8 (SF) engine**. This high-performance harmonic balancer is crafted to restore optimal vibration damping and smooth operation to your classic muscle car, ensuring that the signature growl and responsiveness of the legendary "Big Block" feel are preserved with every rev. Built with a robust **cast iron housing**, the balancer is engineered to withstand the high RPM demands and torque output of the SF engine series, which were known for their aggressive camshaft profiles and high-revving capabilities. The internal design incorporates a **dual-mass construction**, featuring a precision-balanced flywheel-like system that effectively isolates engine vibrations, reducing harshness and prolonging the lifespan of critical drivetrain components like the transmission and engine mounts. This balancer is not just a simple replacement it s a performance-enhancing upgrade that helps maintain the integrity of your engine s rotational smoothness, particularly under heavy loads or when paired with aftermarket modifications such as high-performance camshafts, headers, or forced induction. Whether you're restoring a showroom-fresh Kingswood or pushing your daily driver to the limit at the drag strip, the Dorman SX-1173 ensures that the power you ve worked so hard to develop is delivered with the precision and refinement it deserves. Compatible with both stock and modified applications, this balancer is a must-have for any enthusiast seeking to preserve the soul of their classic Chevy while ensuring reliability and longevity.

**Pros and Cons of Buying a Dorman SX-1173 Engine Harmonic Balancer for a 1969-1972 Chevrolet Kingswood 5.7L V8 (SF Engine)**

### **Pros:**

1. **Direct Fitment** The Dorman SX-1173 is specifically designed for the 5.7L (350 cubic inch) Chevrolet V8 engines used in the Kingswood from 1969 to 1972. This means it will install without modification, reducing the risk of compatibility issues.

2. **High-Quality Material** Dorman is a well-regarded brand known for using durable materials in their harmonic balancers. The SX-1173 is made from steel and rubber, which should provide a longer lifespan than an OEM part if properly maintained.

3. **Reduced Vibration** A harmonic balancer smooths out engine vibrations, improving drivability and reducing wear on the crankshaft and related components. This is particularly important for older engines that may already have some wear.

4. **Easier Installation** Since it s a direct replacement, replacing the harmonic balancer is a straightforward job that can be done with basic tools. No machining or custom fitting is required.

5. **Cost-Effective Upgrade** Compared to some aftermarket alternatives, the Dorman balancer offers a balance of affordability and reliability. It s often priced lower than premium brands but still provides good performance.

6. **Compatibility with Common Modifications** If you ve made performance upgrades (such as a performance camshaft, headers, or a supercharger), a high-quality harmonic balancer like this one can help mitigate increased vibration.

7. **Warranty Coverage** Dorman parts typically come with a warranty, providing some peace of mind in case of premature failure.

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### **Cons:**

1. **Potential for Wear Over Time** Even high-quality harmonic balancers will eventually wear out, especially if the engine has high mileage or has been modified for performance. The rubber can crack or degrade, leading to vibration issues.

2. **Not a Permanent Fix for Engine Issues** If the engine has other underlying problems (such as a worn crankshaft, bent rods, or excessive vibration from other sources), replacing just the harmonic balancer won t fully resolve the issue.

3. **Installation Requires Care** While the installation is straightforward, improper alignment or torque can lead to premature failure. It s important to follow the manufacturer s instructions and use the correct tools.

4. **Limited Longevity Compared to Premium Balancers** Some aftermarket or high-performance harmonic balancers (such as those from Crane or JE) are designed with more durable materials and may last longer, though they come at a higher cost.

5. **Possible Noise from Other Sources** If the engine has other issues (such as a loose flywheel, worn mounts, or a damaged flexplate), replacing the harmonic balancer alone may not eliminate all vibration or noise.

6. **Not Suitable for Extreme Performance** For heavily modified engines (e.g., forced induction, extreme camshafts, or high RPM applications), a more robust harmonic balancer may be necessary to handle the increased stress.

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### **Conclusion and Recommendation:**

The **Dorman SX-1173 harmonic balancer** is a solid choice for a **1969-1972 Chevrolet Kingswood 5.7L V8** if you re looking for a **direct-fit, reliable, and cost-effective replacement**. It addresses common vibration issues and is a practical solution for most owners who want to maintain smooth engine operation without breaking the bank.

**Recommended for:**

- Owners experiencing excessive vibration or a wobbling harmonic balancer.

- Those who want a straightforward, no-frills replacement without complex modifications.

- Budget-conscious buyers who still want a quality part.

**Consider alternatives if:**

- You ve made significant performance modifications (e.g., forced induction, extreme camshafts) and want a more durable balancer (e.g., Crane or JE).

- The engine has high mileage and you suspect other underlying issues (e.g., worn crankshaft bearings, loose mounts).

- You re uncomfortable with DIY installation and prefer professional installation to ensure proper alignment.

**Final Recommendation:**

For most **1969-1972 Kingswood 5.7L V8** owners, the **Dorman SX-1173 is an excellent choice** it s a proven, reliable part that will improve drivability and reduce vibration. If you re unsure about the engine s overall condition, consider having a mechanic inspect it alongside the harmonic balancer replacement to catch any other potential issues early.

Details:

Dorman Engine Harmonic Balancer for 1969-1972 Chevrolet Kingswood 5.7L V8 sf: Status: In Stock.

part #: sx1173 prices

  • $105.52-$323.67

specifications cranshafengin:

  • for makes: Chevrolet
  • for years: 1969-1972
  • brand: Dorman Oe Solutions
  • mpn: Sx-1173
  • manufacturer warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part
  • item weight: 8.6300
  • ipn: C359 32-61
  • placement on vehicle: Engine Cylinder Block
  • compatible model: Kingswood
  • compatible year: 1972 1971 1970 1969
  • core charge: Free No Core Charge
  • type: Engine Harmonic Balancer
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Dorman Engine Harmonic Balancer

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  • paid by: Seller
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  • city: Indianapolis, Indiana
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  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
  • condition: New

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offer cranshafengin:

  • options: Ship-to-home
  • availability: In Stock
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  • quantity: 2
  • started: April 27, 2026
for makes: chevrolet, for years: 1969-1972, manufacturer warranty: 1 year / 2 years / 3 years / 5 years depending on part, item weight: 8.6300, placement on vehicle: engine cylinder block, compatible model: kingswood, compatible year: 1972 1971 1970 1969, core charge: free no core charge, type: engine harmonic balancer, fitment type: direct replacement, bundle description: 1 pc genuine dorman engine harmonic balancer,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 20037800238562892,
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