HomeEngine > Cylinder Block ComponentsDayco PB1211ST Engine Harmonic Balancer
Part #: PB1211ST

Dayco PB1211ST Engine Harmonic Balancer

Street Performance Balancer
⚙️ 41 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$201.80Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Street Performance Balancer
🚗Fitment: Chevrolet and Pontiac, Chevelle, Monte Carlo, Nova, Bel Air, Biscayne, Brookwood, Camaro, Caprice, Corvette, El Camino, Estate, Impala, Kingswood, Townsman, Beaumont, Chevy II, and Malibu
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

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.

BrandDayco
Part NumberPB1211ST
PositionStreet Performance Balancer
Counterweight BalanceNeutral, no counterweight
Crank Bore1.599
Crank Bore40.60
Crank Trigger/Exciter PlateNo
Hardware IncludedNo
Installation Instructions IncludedNo
Nose Outside Diameter2.333
Nose Outside Diameter59.25
Number of Integrated Pulleys0
Outer Ring MaterialCast Iron
Overall Outside Diameter7.953
Overall Outside Diameter202.00
Overall Width2.686
Overall Width68.20
Ring Width1.871
Ring Width47.50
Timing MarksYes
Woodruff Key IncludedNo

This part fits 41 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1970ChevroletMonte Carlo6.6LV8N/A8 Inch Diameter Engine Harmonic Balancer; Street Performance Balancer
1970ChevroletNova6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1970ChevroletNova6.6LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletBel Air6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletBel Air7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletCamaro7.0LV8N/AFactory High Performance; Street Performance Balancer
1969ChevroletCamaro6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletCaprice6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletCaprice7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletCorvette7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletEl Camino6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletImpala6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletImpala7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1969ChevroletNova6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1968ChevroletBel Air6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1968ChevroletBel Air7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1968ChevroletCamaro6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1968ChevroletCaprice6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1968ChevroletCaprice7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1968ChevroletCorvette7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1968ChevroletImpala6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1968ChevroletImpala7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletBel Air6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletBel Air7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletCamaro6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletCaprice6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletCaprice7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletCorvette7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletEl Camino6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletImpala6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletImpala7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1967ChevroletMalibu6.5LV8N/AFactory High Performance; Street Performance Balancer
1966ChevroletBel Air6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1966ChevroletBel Air7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1966ChevroletCaprice6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1966ChevroletCaprice7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1966ChevroletCorvette7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1966ChevroletEl Camino6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1966ChevroletImpala6.5LV8N/Aw/High Performance Engine; Street Performance Balancer
1966ChevroletImpala7.0LV8N/Aw/High Performance Engine; Street Performance Balancer
1966ChevroletMalibu6.5LV8N/Aw/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:

594-113S

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.