Fluidampr Crank Pulley Performance Damper – 8inch OD – Dual 3/16inch, 1/4inch Keyway | CheVRolet Big Block 396-427ci Engines (800131)

Performance 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: 1.599″ – 1.600″
• Degree Marking Range: 50 degrees BTDC to 10 degrees ATDC
• Degree Markings: Yes
• Engine Balance: Internal
• Finish: Black Zinc
• Keyway: Dual; (3/16″, 1/4″)
• Length: 2.75″
• Material: Steel
• Mounting Hardware Included: No
• Outside Diameter: 8″
• Safety Rating: SFI 18.1
• Weight / Rotating Weight: 15.5 lbs / 10.3 lbs

Applications

• Chevy Models with Big Block 396-427 Engines

What’s In The Box?

• 1 – Harmonic Balancer

References

• Installation Instructions

Warranty

• Manufacturer Standard Warranty