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Harmonic Balancers

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Harmonic Balancers
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Harmonic Balancers

Your harmonic balancer connects to your crankshaft and it's job is to reduce torsional vibration and serve as a pully for drive belts. Without this damper, crankshaft failure is imminent. Take care of your crank with a quality harmonic balancer from Speedway Motors. We carry the top brands like Enginequest, Fluidampr and Professional Products to make sure you get the best parts and with Speedway Motors, you know you'll be getting the best price too.

Harmonic Balancers

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                Edelbrock harmonic balancers are for use with 2014 Chevy Corvette Z51 applications with installing an Edelbrock E-Force Supercharger.  They are an upgrade damper to handle increased tension and strain caused by the supercharger's high horsepower and performance.
    • Harmonic Damper
    • Chevrolet 2014 Corvette Z51 - Dry Sump
    • for E-Force Supercharger
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    This 6" harmonic balancer fits 350 c.i. Small Block Chevys and only weighs 5.1 lbs. Plus, the balancing cut out is on the backside so they can't tell what crank you're running. Damper is a press-on fit.

    • For internally balanced engines
    • Durable nodular iron construction
    • High temperature elastomer bond
    • Engraved timing marks every 90° 
    • Includes 60° of easy-to-read timing marks 
    • Rated to 10,000 RPM
    • NOT SFI approved

    910-15363 Instructions (PDF) 

    Technical Notes (PDF) 

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    Small block Chevy stock-type replacement 6-3/4" diameter harmonic balancer. For internal balance engines.

    • NOT recommended for RPM's in excess of 6500
    • NOT SFI certified
    • Internal balance
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    Balancer for Small Block Chevy 350 c.i. V-8. Degreed from 10o ATDC to 50o BTDC.  SFI 18.1 certified.

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    This 6-3/4" balancer fits 383/400 c.i. Small Block Chevys and only weighs 7-3/4 lbs. Plus, the balancing cut out is on the backside so they can't tell what crank you're running. Damper is a press-on fit.

    • Durable nodular iron construction
    • High temperature elastomer bond
    • This balancer is 1.20" thick
    • Rated to 6,500 RPM
    • NOT SFI approved 
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  • Product Rating: 4.80 Stars
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    These PowerForce series balancers from Professional Products are available in 28 oz. or 50 oz. balance. They both measure 6.4" in diameter, are 3" in total length, and are marked to 40 degrees at three locations. Plus, they feature both 3 and 4 bolt pulley holes, which allows the use of late model serpentine drive systems on early engines if desired. Counter weight is removable for zero balanced cranks. Fits most 260/289/302/351W/5.0L Ford engines.  6500 RPM max limit.

    See Notes tab for spacer requirements.

    28 oz. Balancer (S/B Ford V8 1963-80)

    • Matches O.D. and thickness of the stock early (1963-69) dampers
    • Counterbalance weight matches the stock 28 ounce inches
    • Overall balance specifications are held tighter than the original O.E. tolerances
    • Dual Bolt Pattern - both the "early" 3-bolt and the "late" 4-bolt patterns
    • Removeable Counterweight - if building a neutral balance engine simply remove the bolt-in counterweight on the back of the damper

    50 oz. Balancer (S/B Ford V8 1981-95)

    • Made to the early short length of 3" - allows the use of a late 5.0L engine with a 50 oz. in. damper to be used in an early chassis where front clearance is at a minimum
    • To fit in late vehicles, use spacers to provide the correct front pulley alignment
    • Dual Bolt Pattern - both the "early" 3-bolt and the "late" 4-bolt patterns
    • Plastic insert shown in photos can be used to center 3-bolt pulleys with a female pilot, or it can be removed to accept 3-bolt pulleys with a male pilot
    • Very versatile and can be used on many different Ford engines

    Harmonic Balancer Technical Notes (PDF)

    910-15365 Instructions (PDF)

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                Edelbrock harmonic balancers are for use with 2014 Chevy Corvette applications with installing an Edelbrock E-Force Supercharger.  They are an upgrade damper to handle increased tension and strain caused by the supercharger's high horsepower and performance.
    • Harmonic Damper
    • Chevrolet 2014 Corvette Base - Wet Sump
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    Small block Chevy 350 c.i. V-8 stock-type replacement 8" harmonic balancers. Internal balanced. Dampers are designed for press fit.

    • Ring and hub are bonded (vulcanized) to the elastomer
    • Surpasses the reliability and strength of OEM
    • NOT SFI-Approved
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$119.99
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