OE Quality
60-Day Returns

Dayco PBU1480SS10 Engine Harmonic Balancer
Overview of Dayco Race Performance 10% Underdrive Harmonic Balancer
The Dayco Race Performance 10% Underdrive Engine Harmonic Balancer (PBU1480SS10) is engineered for Chevrolet Camaro, Pontiac Firebird, and GTO models. Designed to reduce parasitic drag, this harmonic balancer supports improved engine efficiency and performance.
- Compatible with Chevrolet Camaro, Pontiac Firebird, and GTO
- 6 bolt holes for secure mounting
- Neutral counterweight balance with no additional counterweights
- Crank bore diameter of 1.481 inches (37.60 mm)
- Two integrated serpentine pulleys with 4 and 6 grooves respectively
- Steel outer ring for durability
- Overall outside diameter of 6.772 inches (172.00 mm)
- Includes installation instructions; hardware not included
- Timing marks present for precise engine timing
Detailed Product Description and Specifications
The Dayco PBU1480SS10 harmonic balancer features a 6-bolt hole design ensuring a secure fit on compatible crankshafts. Its neutral counterweight balance means it does not add or subtract from the engine’s existing balance, maintaining factory specifications. The crank bore measures 1.481 inches (37.60 mm), matching the crankshaft dimensions of select Chevrolet Camaro, Pontiac Firebird, and GTO engines.
This harmonic balancer includes two integrated serpentine pulleys: the first pulley has 4 grooves with an outside diameter of 6.335 inches (160.9 mm), and the second pulley has 6 grooves with an outside diameter of 6.615 inches (168.0 mm). Both pulleys are designed for serpentine belts, supporting accessory drive systems. The steel outer ring adds strength and longevity to the balancer, while the overall width of 3.65 inches (92.7 mm) ensures proper clearance and fitment.
About the Race Performance 10% Underdrive Product Line
The Race Performance 10% Underdrive line by Dayco focuses on reducing parasitic losses by underdriving engine accessories by 10%. This results in less power draw from the engine, improving throttle response and overall efficiency. The PBU1480SS10 harmonic balancer is part of this line, designed specifically for performance-oriented applications in Chevrolet Camaro, Pontiac Firebird, and GTO vehicles.
Applications and Problem Solving
- Reduces accessory drive parasitic drag for improved engine output
- Maintains engine balance with neutral counterweight design
- Supports serpentine belt accessory systems with integrated pulleys
- Provides accurate timing marks for engine tuning and maintenance
- Replaces worn or damaged harmonic balancers to prevent crankshaft vibration issues
Installation Notes and Tips
- Installation instructions are included for proper fitment and torque specifications
- Hardware is not included; use factory or recommended bolts for mounting
- Ensure crank bore and bolt hole pattern match your engine before installation
- Verify timing marks alignment during installation for accurate engine timing
Quality Assurance and Warranty
Dayco manufactures the PBU1480SS10 harmonic balancer to meet OEM standards for durability and performance. The steel outer ring construction ensures long service life under demanding conditions. Installation instructions are provided to support correct application. Warranty details should be confirmed with the original product documentation or authorized distributors.
| Brand | Dayco |
| Part Number | PBU1480SS10 |
| Position | Race Performance 10% Underdrive |
| Counterweight Balance | Neutral, no counterweight |
| Crank Bore | 1.481 |
| Crank Bore | 37.60 |
| Crank Trigger/Exciter Plate | No |
| Hardware Included | No |
| Installation Instructions Included | Yes |
| Nose Outside Diameter | 2.128 |
| Nose Outside Diameter | 54.05 |
| Number of Integrated Pulleys | 2 |
| Outer Ring Material | Steel |
| Overall Outside Diameter | 6.772 |
| Overall Outside Diameter | 172.00 |
| Overall Width | 3.650 |
| Overall Width | 92.70 |
| Pulley 1 Number Of Grooves | 4 |
| Pulley 1 Outside Diameter | 6.335 |
| Pulley 1 Outside Diameter | 160.900 |
| Pulley 1 Type | Serpentine |
| Pulley 2 Number Of Grooves | 6 |
| Pulley 2 Outside Diameter | 6.615 |
| Pulley 2 Outside Diameter | 168.000 |
| Pulley 2 Type | Serpentine |
| Ring Width | 2.500 |
| Ring Width | 63.50 |
| Timing Marks | Yes |
| Woodruff Key Included | No |
This part fits 13 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Pontiac | GTO | N/A | Race Performance 10% Underdrive | ||
| 2005 | Pontiac | GTO | N/A | Race Performance 10% Underdrive | ||
| 2004 | Pontiac | GTO | N/A | Race Performance 10% Underdrive | ||
| 2002 | Chevrolet | Camaro | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
| 2002 | Pontiac | Firebird | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
| 2001 | Chevrolet | Camaro | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
| 2001 | Pontiac | Firebird | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
| 2000 | Chevrolet | Camaro | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
| 2000 | Pontiac | Firebird | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
| 1999 | Chevrolet | Camaro | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
| 1999 | Pontiac | Firebird | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
| 1998 | Chevrolet | Camaro | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
| 1998 | Pontiac | Firebird | 5.7L | V8 | N/A | Race Performance 10% Underdrive |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.