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Dayco PB1211ST Engine Harmonic Balancer
Overview of Dayco Street Performance Balancer PB1211ST
The Dayco Street Performance Balancer PB1211ST is engineered for Chevrolet enthusiasts seeking reliable engine harmonic balancing. Designed specifically for select Chevrolet models, this balancer ensures smooth engine operation and durability.
- Compatible with Chevrolet Bel Air, Camaro, Caprice, Corvette, El Camino, Impala, Malibu, Monte Carlo, and Nova
- Neutral counterweight balance with no additional counterweights
- Cast iron outer ring for durability and wear resistance
- Three bolt hole configuration for secure mounting
- Includes timing marks for precise engine tuning
- Crank bore diameter of 1.599 inches (40.60 mm)
- Overall outside diameter of 7.953 inches (202.00 mm)
- Overall width of 2.686 inches (68.20 mm)
- No integrated pulleys or crank trigger/exciter plate included
Detailed Product Description
The Dayco PB1211ST engine harmonic balancer is part of the Street Performance Balancer line, designed to provide dependable performance for street-driven Chevrolet vehicles. This balancer features a neutral counterweight balance, which means it does not add or subtract weight to the crankshaft balance, maintaining factory specifications. The cast iron outer ring enhances durability and helps dampen engine vibrations effectively. With a three bolt hole pattern and a crank bore size of 1.599 inches, this balancer fits a range of Chevrolet models including the Camaro, Corvette, and Impala. The inclusion of timing marks allows for accurate ignition timing adjustments, essential for maintaining engine efficiency and performance.
Applications and Problem Solving
- Reduces engine vibrations that can cause premature wear
- Maintains proper crankshaft balance for smooth engine operation
- Supports accurate ignition timing with integrated timing marks
- Replaces worn or damaged harmonic balancers in Chevrolet street performance engines
- Prevents potential crankshaft damage due to imbalance
Installation Notes and Tips
- Hardware and installation instructions are not included; professional installation is recommended
- Ensure the crank bore and bolt hole pattern match your vehicle’s specifications before installation
- Use proper torque specifications when mounting to avoid damage
- Verify timing marks alignment during installation for accurate engine timing
Quality Assurance and Warranty
Dayco’s Street Performance Balancer line is manufactured to meet OEM standards for fit and function. The PB1211ST undergoes rigorous quality control to ensure durability and performance in street applications. While specific warranty details are not provided, Dayco products typically come with a limited warranty against defects in materials and workmanship. Consult Dayco or your parts provider for exact warranty terms.
| Brand | Dayco |
| Part Number | PB1211ST |
| Position | Street Performance Balancer |
| Counterweight Balance | Neutral, no counterweight |
| Crank Bore | 1.599 |
| Crank Bore | 40.60 |
| Crank Trigger/Exciter Plate | No |
| Hardware Included | No |
| Installation Instructions Included | No |
| Nose Outside Diameter | 2.333 |
| Nose Outside Diameter | 59.25 |
| Number of Integrated Pulleys | 0 |
| Outer Ring Material | Cast Iron |
| Overall Outside Diameter | 7.953 |
| Overall Outside Diameter | 202.00 |
| Overall Width | 2.686 |
| Overall Width | 68.20 |
| Ring Width | 1.871 |
| Ring Width | 47.50 |
| Timing Marks | Yes |
| Woodruff Key Included | No |
This part fits 41 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1970 | Chevrolet | Monte Carlo | 6.6L | V8 | N/A | 8 Inch Diameter Engine Harmonic Balancer; Street Performance Balancer |
| 1970 | Chevrolet | Nova | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1970 | Chevrolet | Nova | 6.6L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | Bel Air | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | Bel Air | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | Camaro | 7.0L | V8 | N/A | Factory High Performance; Street Performance Balancer |
| 1969 | Chevrolet | Camaro | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | Caprice | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | Caprice | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | Corvette | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | El Camino | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | Impala | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | Impala | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1969 | Chevrolet | Nova | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1968 | Chevrolet | Bel Air | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1968 | Chevrolet | Bel Air | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1968 | Chevrolet | Camaro | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1968 | Chevrolet | Caprice | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1968 | Chevrolet | Caprice | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1968 | Chevrolet | Corvette | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1968 | Chevrolet | Impala | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1968 | Chevrolet | Impala | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | Bel Air | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | Bel Air | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | Camaro | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | Caprice | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | Caprice | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | Corvette | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | El Camino | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | Impala | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | Impala | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1967 | Chevrolet | Malibu | 6.5L | V8 | N/A | Factory High Performance; Street Performance Balancer |
| 1966 | Chevrolet | Bel Air | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1966 | Chevrolet | Bel Air | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1966 | Chevrolet | Caprice | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1966 | Chevrolet | Caprice | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1966 | Chevrolet | Corvette | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1966 | Chevrolet | El Camino | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1966 | Chevrolet | Impala | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1966 | Chevrolet | Impala | 7.0L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
| 1966 | Chevrolet | Malibu | 6.5L | V8 | N/A | w/High Performance Engine; Street Performance Balancer |
* 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.