1. Engine Crankshafts Products
  2. sku: 20144732804682892
  3. POWERBOND DAYCO SX-0917

POWERBOND BY DAYCO SX-0917 Engine Harmonic Balancer Cylinder 6.5L V8

fits make: Chevrolet, Chevy. year: 1968.

Sx-0917 Powerbond By Dayco Engine Harmonic Balancer For 1968 Chevrolet Chevy Ii 6.5l V8 Cylinder Vv

( Brand: Powerbond By Dayco ), ( Manufacturer Part Number: SX-0917 ), ( Item Weight: 15.9200 ), ( Ipn: C716 84-42 ), ( Placement On Vehicle: Engine Cylinder Block ), ( Compatible Make: Chevrolet ), ( Compatible Model: Chevy Ii ), ( 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: 2.686 In / 68.20 Mm ), ( Hardware Included: No ), ( Ring Width: 1.871 In / 47.50 Mm ), ( Counterweight Balance: Neutral, No Counterweight ), ( Outer Ring Material: Steel ), ( Overall Outside Diameter: 7.953 In / 202.00 Mm ), ( Nose Outside Diameter: 2.333 In / 59.25 Mm ), ( Crank Bore: 1.599 In / 40.60 Mm )

Review POWERBOND BY DAYCO Engine Harmonic Balancer Chevrolet Chevy 6.5l V8 Cylinder fits 1968

The **Powerbond Dayco SX-0917 Engine Harmonic Balancer** is a high-performance, precision-engineered replacement part designed specifically for the 1968 Chevrolet Chevy 6.5L (396 cubic inch) V8 engine, a legendary powerhouse known for its durability and raw torque. This harmonic balancer is crafted from premium materials and advanced manufacturing techniques to ensure optimal vibration dampening, smooth operation, and long-lasting reliability critical components for maintaining the integrity of your big-block Chevy s drivetrain. Unlike standard aftermarket alternatives, the SX-0917 features a robust **steel core with a high-quality rubber insert**, engineered to absorb engine harmonics and reduce torsional vibrations that can otherwise lead to drivetrain wear, premature bearing failure, or even catastrophic engine damage over time. Its **precision-balanced design** minimizes torsional windup, which is especially beneficial for high-performance applications, forced induction builds, or heavy-duty towing setups where the 396 s inherent power delivery can introduce excessive stress on the crankshaft and related components. The balancer s **OEM-style mounting pattern** ensures a perfect fit with the stock engine bay, while its **reinforced rubber compound** is formulated to withstand extreme temperatures, high RPMs, and prolonged use without hardening or cracking qualities that set it apart from generic, low-quality replacements. Whether you re restoring a classic muscle car, building a street-legal monster, or simply maintaining a reliable daily driver, the Powerbond Dayco SX-0917 provides the durability and performance you need to keep your 396 running like it s fresh off the assembly line. With its **seamless integration, superior vibration control, and long-term dependability**, this harmonic balancer is an essential upgrade for any serious Chevy enthusiast looking to preserve the soul of their big-block while pushing its limits.

### Pros and Cons of Buying a Powerbond Dayco SX-0917 Engine Harmonic Balancer for a 1968 Chevrolet 6.5L V8

#### **Pros:**

The Powerbond Dayco SX-0917 harmonic balancer is a well-regarded aftermarket replacement part for the 6.5L V8 engine found in older Chevrolet trucks and vehicles like the 1968 model. Here are the key advantages:

1. **Durability and Quality** Powerbond and Dayco are reputable brands known for manufacturing high-quality engine components. The SX-0917 is designed to withstand the stresses of a large V8 engine, reducing the risk of premature failure compared to OEM parts or lower-quality alternatives.

2. **Compatibility** This specific part is engineered to fit the 6.5L V8 (also known as the "Big Block" 396 or 427 in some configurations) found in the 1968 Chevrolet truck. It should align perfectly with the crankshaft and engine bay layout, minimizing installation issues.

3. **Reduced Vibration and Noise** A harmonic balancer dampens engine vibrations, which is critical for a large displacement V8. A failing or worn balancer can cause excessive vibration, rattling, and even damage to the crankshaft or connecting rods. The SX-0917 is designed to provide better vibration control than an original or worn-out part.

4. **Easier Installation** Compared to some OEM parts, aftermarket harmonic balancers like this one often come with pre-installed components (e.g., bolts, seals) or are designed for straightforward installation, reducing labor time and potential complications.

5. **Cost-Effective Alternative to OEM** While not always cheaper than an original equipment part, the SX-0917 often provides better performance and longevity at a reasonable price, especially when factoring in the potential cost of engine damage from a failing balancer.

6. **Warranty Coverage** Both Powerbond and Dayco typically offer warranties on their harmonic balancers, providing some peace of mind against defects or early failure.

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#### **Cons:** While the SX-0917 is a solid choice, there are some potential drawbacks to consider:

1. **Higher Upfront Cost Than Cheap Alternatives** While not excessively expensive, it may be more costly than generic or no-name harmonic balancers. However, this cost is often justified by its quality and longevity.

2. **Installation Complexity** Replacing a harmonic balancer requires removing the timing cover, disconnecting the harmonic balancer from the crankshaft, and ensuring proper alignment. If the installer lacks experience, there s a risk of damaging the crankshaft pulley or timing components.

3. **Potential for Counterfeit or Low-Quality Copies** Since this is a popular part, there is a risk of purchasing a counterfeit or substandard replica, especially if buying from untrusted sellers. Always verify the seller s reputation and check for authenticity markings.

4. **Limited Lifespan Compared to Some OEM Parts** While the SX-0917 is durable, no harmonic balancer lasts forever. In high-mileage or heavily modified engines, it may still require replacement sooner than one might hope, depending on driving conditions and maintenance.

5. **Compatibility Variations** While the SX-0917 is designed for the 6.5L V8, slight variations in crankshaft pulley designs or bolt patterns could exist depending on the specific engine build year or modifications. Double-checking compatibility with your exact engine configuration is essential.

6. **Weight Considerations** Some aftermarket balancers are lighter than OEM parts, which could slightly affect engine balance. However, the SX-0917 is designed to mitigate this, and the difference is usually negligible for most applications.

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### **Conclusion:**

The Powerbond Dayco SX-0917 harmonic balancer is an excellent choice for a 1968 Chevrolet 6.5L V8 engine. Its combination of durability, compatibility, and performance makes it a reliable upgrade over worn-out or failing OEM parts. The minor drawbacks such as cost, installation complexity, and the risk of counterfeit products are outweighed by the benefits it provides in terms of vibration control, longevity, and peace of mind.

For a classic or high-performance engine, investing in a quality harmonic balancer like this one is a prudent decision to prevent costly engine damage and ensure smooth operation.

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### **Recommendation:**

If you are replacing a worn or damaged harmonic balancer on your 1968 Chevrolet 6.5L V8, **purchase the Powerbond Dayco SX-0917 from a reputable dealer or online retailer** (such as RockAuto, Summit Racing, or a trusted local parts store). Verify the part number and compatibility with your specific engine configuration before purchasing. If you are unsure about installation, consult a mechanic experienced with Big Block Chevrolet engines to ensure proper fitting and alignment.

This balancer is a strong, cost-effective solution that will extend the life of your engine and reduce vibration-related issues.

Details:

Dayco Engine Harmonic Balancer for 1968 Chevrolet Chevy II 6.5L V8 Cylinder vv: Status: In Stock.

part #: sx0917 price

  • $384.90

specifications cranshafengin:

  • for makes: Chevrolet, Chevy
  • for years: 1968
  • brand: Powerbond By Dayco
  • mpn: Sx-0917
  • item weight: 15.9200
  • ipn: C716 84-42
  • placement on vehicle: Engine Cylinder Block
  • compatible make: Chevrolet
  • compatible model: Chevy Ii
  • 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: 2.686 In / 68.20 Mm
  • hardware included: No
  • ring width: 1.871 In / 47.50 Mm
  • counterweight balance: Neutral, No Counterweight
  • outer ring material: Steel
  • overall outside diameter: 7.953 In / 202.00 Mm
  • nose outside diameter: 2.333 In / 59.25 Mm
  • crank bore: 1.599 In / 40.60 Mm

returns cranshafengin:

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

general cranshafengin:

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

payments cranshafengin:

  • other
  • credit card: Visa
  • wallet: Google-pay

offer cranshafengin:

  • options: Ship-to-home
  • quantity: 4
  • started: May 3, 2026
  • availability: In Stock
  • sold: 0

seller cranshafengin:

  • city: Indianapolis, Indiana
  • # reviews: 652660
  • rating: 99.6%

shipping cranshafengin:

  • service: Standard, Expedited
  • cost: $0.00
  • type: Fixed
  • transit: 3-5 Days
  • class: Standard, Expedited
for makes: chevrolet, chevy, for years: 1968, item weight: 15.9200, placement on vehicle: engine cylinder block, compatible make: chevrolet, compatible model: chevy ii, 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: 2.686 in / 68.20 mm, hardware included: no, ring width: 1.871 in / 47.50 mm, counterweight balance: neutral, no counterweight, outer ring material: steel, overall outside diameter: 7.953 in / 202.00 mm, nose outside diameter: 2.333 in / 59.25 mm, crank bore: 1.599 in / 40.60 mm,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 20144732804682892,
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