Harmonic Balancer for Big Block Chevy 7" Internal Balance
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PROFORMPART NUMBER: 778-66508

Harmonic Balancer for Big Block Chevy 7" Internal Balance

$9899
ShippingShips on 11/19/2026
Lowest PriceLowest Price Guarantee

Harmonic Dampers
    Harmonic Balancer
  • Big Block Chevy
  • 1967-1969 396, 402, 427
  • 7" Internal Balance

  • Fits Chevy Small And Big Block Engines
  • Brand New OE Replacement

    Precision Balancing for Maximum Performance

    Proform Harmonic Dampers are engineered to reduce harmful engine vibrations, ensuring smoother operation and extending the life of critical engine components. Manufactured with high-quality materials and precise balancing, these dampers deliver dependable performance for both street and racing applications. Designed as direct-fit replacements, Proform Harmonic Dampers provide durability, accuracy, and the performance confidence enthusiasts expect.

Part TypeHarmonic Balancer
Product LineProform Harmonic Dampers
BrandPROFORM
Package Height4.0
Package Width8.0
Package Length8.0
Weight10.267 PG
Part CategoryPerformance Parts
Degree MarkingsYes
Harmonic Balancer ConstructionElastomer
QuantitySold individually
Mounting Hardware IncludedNo
Harmonic Balancer MaterialNodular iron
Part FitmentSemi Universal
Safety RatingNot SFI Approved
Engine BalanceInternal
Harmonic Balancer FinishNatural
Vendor Part Number66508
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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