Ford Performance M-6316-A460 Harmonic Damper

429/460 - Neutral Balance - Meets SFI 18-1 - 10.1 lbs. Neutral Balance Meets SFI Approval Ford Performance Parts - Harmonic Damper P/N M-6316-A460: These crankshaft dampers from Ford Racing will control crank twisting at all rpm, reducing valve train vibration and minimizing timing scatter. They're available in iron and steel for a variety of applications to suit your needs.