1. Engine Crankshafts Products
  2. sku: 20398014267868721
  3. POWERBOND DAYCO SX-0997

POWERBOND BY DAYCO SX-0997 Engine Harmonic Balancer El Qe 5.7L V8

fits model: Camino. make: Chevrolet. year: 1969–1976.

Sx-0997 Powerbond By Dayco Engine Harmonic Balancer For 1969-1976 Chevrolet El Camino 5.7l V8 Qe

( Brand: Powerbond By Dayco ), ( Manufacturer Part Number: SX-0997 ), ( Item Weight: 11.1100 ), ( Ipn: C282 10-66 ), ( Placement On Vehicle: Engine Cylinder Block ), ( Compatible Model: El Camino ), ( Compatible Year: 1976 1975 1974 1973 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: 2.347 In / 59.60 Mm ), ( Hardware Included: No ), ( Ring Width: 1.523 In / 38.68 Mm ), ( Counterweight Balance: Neutral, No Counterweight ), ( Outer Ring Material: Cast Iron ), ( Overall Outside Diameter: 7.953 In / 202.00 Mm ), ( Nose Outside Diameter: 1.762 In / 44.75 Mm ), ( Crank Bore: 1.245 In / 31.60 Mm )

Review POWERBOND BY DAYCO Engine Harmonic Balancer Chevrolet El 5.7l V8 Qe fits CAMINO 1969–1976

The **Powerbond Dayco SX-0997 Engine Harmonic Balancer** is a high-performance, precision-engineered replacement part designed specifically for the **1969 1976 Chevrolet El Camino** equipped with the legendary **5.7L (350 cubic inch) V8 QE engine**. This robust harmonic balancer is crafted to deliver superior vibration damping, enhanced engine smoothness, and long-lasting durability, ensuring optimal performance and reliability for your classic muscle car. Built with a **high-strength steel core** and reinforced rubber compound, the SX-0997 is engineered to withstand the demanding torque and RPM ranges of the iconic **350 QE engine**, which powers everything from the iconic **El Camino** to the legendary **Chevelle SS** and **Camaro Z/28**. The balancer s **precision-balanced design** minimizes harmful vibrations, reducing engine strain and preventing premature wear on critical components such as the crankshaft, timing belt, and related drivetrain parts. Whether you're restoring a show-worthy El Camino for weekend cruising or pushing it to the limit on the track, this harmonic balancer provides the stability and resilience needed to maintain peak engine performance. Backed by **Dayco s reputation for quality and Powerbond s commitment to durability**, this part is a direct-fit, OEM-quality replacement that installs easily with standard tools, ensuring a hassle-free upgrade. Perfect for both restoration projects and high-mileage vehicles, the SX-0997 harmonic balancer is an essential component for preserving the integrity of your **350 QE V8**, keeping it running strong for years to come.

### **Pros and Cons of Buying a Powerbond Dayco SX-0997 Engine Harmonic Balancer for a 1969 1976 Chevrolet El Camino 5.7L V8 (QE Engine)**

#### **Pros:**

1. **Direct Fitment** The SX-0997 is specifically designed for the 5.7L (350ci) QE engine found in your El Camino, ensuring compatibility without modifications.

2. **Improved Durability** Powerbond/Dayco harmonic balancers are known for their reinforced construction, often featuring steel cores and rubber dampening layers that outlast OEM parts, reducing the risk of catastrophic failure.

3. **Reduced Vibration** A worn or failing harmonic balancer can cause excessive vibration, which this upgrade helps mitigate, improving drivability and reducing stress on the engine mount and drivetrain.

4. **Prevents Oil Leaks** Many aftermarket balancers are designed with better sealing than OEM parts, reducing the likelihood of oil leaks from the crankshaft seal area.

5. **Compatibility with Performance Upgrades** If you plan to modify your engine (e.g., forced induction, high RPM tuning), a high-quality balancer like this one can better handle increased stress.

6. **Warranty Coverage** Powerbond/Dayco typically offers warranties (varies by retailer), providing some recourse if the part fails prematurely.

7. **Easier Installation** The design is straightforward, and many mechanics or DIYers can replace it without specialized tools, though some may prefer professional installation for alignment.

#### **Cons:**

1. **Cost** While not excessively expensive, it is more than an OEM replacement (typically $100 $150 depending on the source), which may be a consideration if the original balancer is still functional.

2. **Potential for Misalignment** If not installed correctly (e.g., not properly balanced or secured), it could cause vibration issues or even damage the engine. Requires careful attention to alignment with the crankshaft.

3. **Limited Longevity Guarantee** Even high-quality balancers have finite lifespans, especially under heavy loads or extreme conditions (e.g., high RPM, aggressive driving). Replacement may still be necessary after 50,000 100,000 miles.

4. **Availability of OEM Alternatives** If you prefer OEM parts, remanufactured GM harmonic balancers (e.g., from RockAuto or Mopar) may be cheaper, though they may not last as long as aftermarket options.

5. **Installation Complexity** The balancer sits directly on the crankshaft, and improper handling (e.g., dropping it) could damage the crank seal or balancer itself. Some may opt for a professional install to avoid mistakes.

6. **Noise Concerns** While rare, some aftermarket balancers have been reported to produce a slight hum or whine under certain conditions, though this is uncommon with reputable brands like Powerbond/Dayco.

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### **Conclusion**

The **Powerbond Dayco SX-0997 harmonic balancer** is a solid choice for your 1969 1976 Chevrolet El Camino s 5.7L QE engine, offering superior durability, vibration reduction, and peace of mind compared to OEM parts. It is particularly worthwhile if your current balancer is cracked, leaking, or showing signs of wear (e.g., excessive vibration, oil leaks). However, the decision depends on your budget, priorities, and whether the original balancer is still functional.

If your balancer is **new or in good condition**, replacing it may not be urgent. If it is **failing or you re planning engine modifications**, upgrading to this balancer is a **strong recommendation** due to its reliability and performance benefits.

For best results:

- Inspect the original balancer for cracks, oil leaks, or excessive play before deciding.

- Ensure proper installation by following the manufacturer s torque specifications and alignment guidelines.

- Consider pairing it with a high-quality crankshaft seal if replacing the balancer to prevent future leaks.

**Final Recommendation:**

**Buy the Powerbond Dayco SX-0997** if your current balancer is compromised or you want to future-proof your engine. If the original is still intact and you re not planning modifications, replacement may not be immediately necessary, but it s a prudent upgrade for long-term reliability.

Details:

Dayco Engine Harmonic Balancer for 1969-1976 Chevrolet El Camino 5.7L V8 qe: Status: In Stock.

specifications cranshafengin:

  • for models: Camino
  • for makes: Chevrolet
  • for years: 1969-1976
  • brand: Powerbond By Dayco
  • mpn: Sx-0997
  • item weight: 11.1100
  • ipn: C282 10-66
  • placement on vehicle: Engine Cylinder Block
  • compatible model: El Camino
  • compatible year: 1976 1975 1974 1973 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: 2.347 In / 59.60 Mm
  • hardware included: No
  • ring width: 1.523 In / 38.68 Mm
  • counterweight balance: Neutral, No Counterweight
  • outer ring material: Cast Iron
  • overall outside diameter: 7.953 In / 202.00 Mm
  • nose outside diameter: 1.762 In / 44.75 Mm
  • crank bore: 1.245 In / 31.60 Mm

returns cranshafengin:

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

shipping cranshafengin:

  • transit: 4-6 Days
  • service: Standard, Expedited
  • class: Standard, Expedited
  • cost: $0.00
  • type: Fixed

offer cranshafengin:

  • started: May 17, 2026
  • availability: In Stock
  • quantity: 2
  • options: Ship-to-home
  • sold: 0

seller cranshafengin:

  • rating: 99.6%
  • city: Indianapolis, Indiana
  • # reviews: 658039

general cranshafengin:

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

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for models: camino, for makes: chevrolet, for years: 1969-1976, item weight: 11.1100, placement on vehicle: engine cylinder block, compatible model: el camino, compatible year: 1976 1975 1974 1973 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: 2.347 in / 59.60 mm, hardware included: no, ring width: 1.523 in / 38.68 mm, counterweight balance: neutral, no counterweight, outer ring material: cast iron, overall outside diameter: 7.953 in / 202.00 mm, nose outside diameter: 1.762 in / 44.75 mm, crank bore: 1.245 in / 31.60 mm,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 20398014267868721,
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