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Fluidampr harmonic damper for Big‑Block Chevy 454–502 V8s with one 3/16" and one 1/4" key slot (externally balanced). Its viscous damper technology controls torsional vibration across the rpm band to reduce wear and lessen crankshaft failure risk while improving timing. Precision CNC‑machined and balanced steel with corrosion‑resistant black zinc finish and engraved timing marks. SFI 18.1 certified, no maintenance required, made in USA.
Fluidampr Chevy 454-502 CID-V8 w/ one 3/16 and one 1/4 key slot Steel Externally Balanced Damper
