Fluidampr - 650401 - Harmonic Balancer - Pontiac / Oldsmobile - V8 - Int Balance - Each

Protect your engine. Modifications can compromise your stock harmonic balancer. Install a Fluidampr performance damper early for best durability. Superior viscous damper design controls harmful torsional vibration across the entire rpm range. Reduce wear on engine components.

Reduce risk of crankshaft failure. Improve timing. Unleash lost torque and horsepower. Precision CNC machined and balanced high-grade steel components. Corrosion resistant black zinc finish with engraved timing marks. No maintenance required. Trusted by leading engine builders worldwide. SFI 18.1 certified. Made in USA.

Technical Data

• Bore Diameter - 1.3720"
• Degree Marking Range - 50 BTDC to 10 ATDC. Additional timing/degree marks at 90, 180 and 270
• Degree Markings - Engraved
• Engine Balance - Internal
• Finish - Black Zinc
• Keyway - Single; (3/16")
• Length - 3.247"
• Material - Steel
• Mounting Hardware Included - No
• Outside Diameter - 6-5/8"
• Safety Rating - SFI 18.1
• Weight / Rotating Weight - 10.2 lbs / 6.8 lbs
• Pulley Bolt Pattern - 4 bolt pattern on 3.300 circle. Holes in pulley must be re-drilled. 1969-later timing cover & pulley may be required on earlier models.

Fitments

1959-1979 Pontiac / Oldsmobile. 326, 389, 400, 421, 428, 455 V8. Internal balance. 4 bolt pulley pattern on 3.300 bolt circle. Holes in pulley must be re-drilled, '69-later timing cover & pulley may be required on early models.