New ATI Performance harmonic balancer damper for Datsun 240Z, 260Z, 280Z & 280ZX.
1 groove design.
Made in U.S.A.
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Dampens torsional crankshaft vibrations at all RPM levels
Protects against engine harmonics
Laser-etched timing marks
SFI 18.1 Certified for competition use
Made in America
Specs
Diameter : 16cm
Shell Material: Aluminum
Hub Material: Steel
Inertia Weight: 3 ring