Fluidampr Performance Damper - 6.25" OD - Single 3/16" Keyway | Chevrolet Big Block 396-427ci Engines (720121)

Harmonic Balancer For Chevrolet Big Block 396-427 Engines by Fluidampr

You can't feel them or hear them, but harmonic vibrations are at work inside EVERY internal combustion engine. Similar to glass-shattering forces created by a high pitched note, harmonic vibrations cause metal fatigue and can cause significant power loss because crankshaft harmonics are transmitted to the camshaft and valvetrain.

Control this power-robbing force with a Fluidampr Harmonic Damper with race-proven vibration damping technology. A high viscosity silicone fluid surrounds a nylon-coated inertia ring inside a laser welded housing. All dampers are coated with black zinc chromate for increased corrosion resistance. Timing marks - every two degrees from 50° BTDC to 10° ATDC with additional marks at 90, 180 and 270. Meets SFI 18.1 specs.

Features

• Bore Diameter Min/Max: 1.5990
• Degree Marking Range: 50 degrees BTDC to 10 degrees ATDC
• Degree Markings: Yes
• Engine Balance: Internal
• Finish: Black Zinc
• Keyway: Single (3/16")
• Length: 2.685"
• Material: Steel
• Mounting Hardware Included: No
• Outside Diameter: 7-1/4"
• Safety Rating: SFI 18.1
• Weight / Rotating Weight: 12.8 lbs / 8.5 lbs

Applications

• Chevy Big Block 396-427 Engines

What's In The Box?

• 1 - Harmonic Balancer

References

• Installation Instructions

Warranty

• Manufacturer Standard Warranty