1. Engine Crankshafts Products
  2. sku: 20334378695513892
  3. POWERBOND DAYCO SX-1497

POWERBOND BY DAYCO SX-1497 Engine Harmonic Balancer Kingswood 5.7L V8

fits make: Chevrolet. year: 1969–1972.

Sx-1497 Powerbond By Dayco Engine Harmonic Balancer For 1969-1972 Chevrolet Kingswood 5.7l V8 Dv

( Brand: Powerbond By Dayco ), ( Manufacturer Part Number: SX-1497 ), ( Item Weight: 11.1100 ), ( Ipn: C698 57-22 ), ( 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 Dayco Engine Harmonic Balancer ), ( Timing Marks: Yes ), ( Overall Width: 2.343 In / 59.50 Mm ), ( Hardware Included: No ), ( Ring Width: 1.319 In / 33.48 Mm ), ( Counterweight Balance: Neutral, No Counterweight ), ( Outer Ring Material: Grey Iron ), ( Overall Outside Diameter: 7.993 In / 203.00 Mm ), ( Nose Outside Diameter: 1.763 In / 44.78 Mm ), ( Crank Bore: 1.245 In / 31.60 Mm )

Review POWERBOND BY DAYCO Engine Harmonic Balancer Chevrolet Kingswood 5.7l V8 Dv fits 1969–1972

The **Powerbond Dayco SX-1497 Engine Harmonic Balancer** is a precision-engineered replacement part designed specifically for the **1969 1972 Chevrolet Kingswood** equipped with the legendary **5.7L (350 cubic inch) V8 engine**, ensuring optimal performance, durability, and smooth operation. This high-quality harmonic balancer is meticulously crafted to replace the stock unit, which is notorious for wear, cracking, or failure over time particularly under high-performance driving conditions or extended use. Engineered with a **reinforced rubber core** and a **heavy-duty steel housing**, the SX-1497 is built to withstand the torsional forces generated by the powerful V8, reducing vibration, preventing excessive wear on the crankshaft, and minimizing the risk of catastrophic failure. The balancer features a **precision-balanced design** that maintains proper rotational stability, contributing to a quieter, more refined engine bay environment while protecting critical drivetrain components from harmful vibrations. Whether you're restoring a classic Kingswood for weekend cruising or pushing it to the limits on the track, this aftermarket harmonic balancer delivers the strength and reliability needed to keep your engine running like new. Backed by **Dayco s reputation for automotive excellence**, this part is a direct-fit solution that installs easily with standard tools, offering a cost-effective upgrade over OEM components while ensuring long-term reliability. Trust the SX-1497 to keep your 350 V8 running smoothly, preserving both performance and longevity for years to come.

**Pros and Cons of Buying a Powerbond Dayco SX-1497 Engine Harmonic Balancer for a 1969 1972 Chevrolet Kingswood 5.7L V8**

### **Pros**

1. **Compatibility and Fitment** The SX-1497 is specifically designed for the 5.7L (350 cubic inch) small-block Chevrolet V8 engines used in the Kingswood, ensuring a proper fit without modification. This reduces the risk of installation errors or performance issues.

2. **Durability and Quality** Powerbond and Dayco are well-regarded manufacturers in the aftermarket for producing high-quality harmonic balancers. These balancers are built with robust materials, including reinforced rubber and steel components, which can withstand the stresses of a high-performance or heavily driven engine.

3. **Reduced Vibration and Smooth Operation** A harmonic balancer dampens engine vibrations, particularly at higher RPMs or under load. A worn or failing balancer can cause excessive vibration, which can lead to driveline damage or an uncomfortable ride. Replacing it with a new SX-1497 should restore smooth operation.

4. **Prevents Driveline Damage** If the harmonic balancer fails, it can cause the crankshaft pulley to become loose or damaged, potentially leading to serious issues like a broken serpentine belt, damaged water pump, or even crankshaft damage. Replacing it proactively avoids these costly repairs.

5. **Easy Installation** The SX-1497 is a direct replacement part, meaning it should bolt on without requiring any modifications to the engine or surrounding components. This makes it a straightforward upgrade for DIYers or mechanics.

6. **Warranty Coverage** Both Powerbond and Dayco offer warranties on their harmonic balancers, providing some peace of mind against premature failure. This can be particularly valuable if the balancer is installed as part of a larger engine rebuild or performance project.

7. **Performance Benefits** While the primary function is vibration control, a high-quality harmonic balancer can contribute to better engine balance, especially in high-performance applications where engine speed and torque are increased. This can lead to improved drivability and longevity of related components.

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### **Cons**

1. **Cost** A harmonic balancer is not an extremely expensive part, but it is not cheap either. The SX-1497 typically ranges between $100 and $150, depending on the retailer and any additional accessories (e.g., bolts, gaskets). For a classic car owner, this may be a noticeable expense, especially if other engine components are also needing attention.

2. **Labor Time** Replacing a harmonic balancer requires removing the serpentine belt, water pump, and possibly the alternator or power steering pump, depending on the setup. This can take several hours of labor, especially for someone without mechanical experience. If hiring a mechanic, labor costs will add to the total expense.

3. **Potential for Counterfeit Parts** The aftermarket for classic Chevy parts can sometimes include counterfeit or low-quality replicas. It s important to purchase from a reputable dealer or directly from the manufacturer s authorized distributors to ensure you re getting a genuine SX-1497. Buying from unknown sellers may risk receiving a subpar or incompatible part.

4. **Limited Lifespan** While the SX-1497 is a high-quality balancer, no part lasts forever. The lifespan of a harmonic balancer depends on driving conditions, engine performance, and maintenance. In severe conditions (e.g., high-performance driving, extreme heat, or frequent heavy loads), it may wear out faster than expected.

5. **Risk of Overlooking Underlying Issues** If the harmonic balancer is replaced without addressing other potential problems (e.g., worn crankshaft pulley bearings, misaligned components, or engine imbalance), the issue may recur. A thorough inspection of related parts during installation is advisable.

6. **Noise or Hissing After Installation** In rare cases, a new harmonic balancer may produce unusual noises (e.g., hissing or rattling) if there is an issue with the rubber dampening material or if it was not properly seated. This is usually temporary and resolves as the balancer breaks in, but it can be concerning if it persists.

7. **Environmental Factors** Exposure to extreme temperatures, moisture, or chemicals (e.g., road salt, gasoline fumes) can accelerate wear on the balancer. If the vehicle is stored in harsh conditions or driven in environments with high levels of contamination, the balancer may degrade more quickly.

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### **Conclusion**

The **Powerbond Dayco SX-1497 harmonic balancer** is a **reliable and recommended choice** for a 1969 1972 Chevrolet Kingswood with a 5.7L V8. Its primary advantages direct compatibility, durability, vibration reduction, and prevention of driveline damage far outweigh the minor drawbacks, which are largely manageable with proper installation and sourcing. For most owners, the cost and effort are justified by the long-term benefits it provides to engine smoothness and reliability.

If you are restoring or maintaining your Kingswood, replacing the harmonic balancer is a **wise preventive measure**, especially if the original balancer shows signs of wear (e.g., cracks, loose bolts, or excessive vibration). Pairing this upgrade with other routine maintenance (e.g., belt replacements, fluid changes, and engine inspections) will help ensure your vehicle remains in optimal condition.

### **Recommendation**

- **Purchase from a trusted source** (e.g., RockAuto, Summit Racing, or a local Chevy specialty shop) to avoid counterfeit parts.

- **Inspect the crankshaft pulley and surrounding components** during installation to ensure everything is properly aligned and secure.

- **Consider replacing the serpentine belt and water pump** at the same time, as these are often part of the same service interval.

- **Follow the manufacturer s installation instructions** carefully to avoid damaging the balancer or related parts.

- **Monitor the engine for any unusual noises or vibrations** after installation, but expect the balancer to perform reliably for many years.

In summary, the **SX-1497 is a solid, high-quality part** that will serve your Kingswood well, provided it is installed correctly and maintained. For the average owner, the benefits of a smooth-running engine and reduced risk of driveline damage make it a **strongly recommended upgrade**.

Details:

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

part #: sx1497 prices

  • $69.69-$212.52

specifications cranshafengin:

  • for makes: Chevrolet
  • for years: 1969-1972
  • brand: Powerbond By Dayco
  • mpn: Sx-1497
  • item weight: 11.1100
  • ipn: C698 57-22
  • 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 Dayco Engine Harmonic Balancer
  • timing marks: Yes
  • overall width: 2.343 In / 59.50 Mm
  • hardware included: No
  • ring width: 1.319 In / 33.48 Mm
  • counterweight balance: Neutral, No Counterweight
  • outer ring material: Grey Iron
  • overall outside diameter: 7.993 In / 203.00 Mm
  • nose outside diameter: 1.763 In / 44.78 Mm
  • crank bore: 1.245 In / 31.60 Mm

general cranshafengin:

  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
  • condition: New

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  • policy: Returns Accepted

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  • options: Ship-to-home
  • started: May 13, 2026
  • sold: 0
  • availability: In Stock
  • quantity: 1

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  • rating: 99.6%
  • # reviews: 656438
  • city: Indianapolis, Indiana

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for makes: chevrolet, for years: 1969-1972, item weight: 11.1100, 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 dayco engine harmonic balancer, timing marks: yes, overall width: 2.343 in / 59.50 mm, hardware included: no, ring width: 1.319 in / 33.48 mm, counterweight balance: neutral, no counterweight, outer ring material: grey iron, overall outside diameter: 7.993 in / 203.00 mm, nose outside diameter: 1.763 in / 44.78 mm, crank bore: 1.245 in / 31.60 mm,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 20334378695513892,
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