Harmonic Balancer by Proform. Fits Chevy Small and Big block engines. These are brand-new OE replacement harmonic balancers. Affordable pricing eliminates the need to clean your old stock balancer.

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Manufacturer:

Proform

Proform 66508 Harmonic Balancer Chevy Big Block 396

Part #: 66508

Chevy Big Block 396

Proform 66509 Harmonic Balancer Chevy Small Block 350

Part #: 66509

Chevy Small Block 350 Engine With Center Timing Mark 6-3/4"

Proform 66510 Harmonic Balancer Chevy Small Block Internal 6-3/4"

Part #: 66510

Chevy Small Block Internal 6-3/4"

Proform 66511 Harmonic Balancer Chevy Small Block Internal 8"

Part #: 66511

Chevy Small Block Internal 8"

Proform 66512 Harmonic Balancer Chevy Big Block 454 Pre-1989 External

Part #: 66512

Chevy Big Block 454 Pre-1989 External

Proform 66513 Harmonic Balancer Chevy Small Block 400 External

Part #: 66513

Chevy Small Block 400 - External