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-5/16-18" carburettor studs (x4)
Notes: Requires a Chevy 400 harmonic balancer and the use of a stock type counter weighted flexplate or flywheel
Performer RPM Intake ManifoldOldsmobile 307-403
Part Number: AU4535
ATI Super Damper Standard Harmonic Balancers (ATI-917062) Cross Lavida -5/16-18" carburettor studs (x4)Patented ATI Super Damper standard harmonic balancers are the only crankshaft dampers designed exclusively for high performance engines. Inner and outer shells are available in aluminum or steel, and contain a steel inertia weight. The inertia weights have six (2 ring design) or eight (3 ring design) computer machined grooves to retain the proper durometer O rings (dyno tested for each application). Whether you race or just drive on the street, ATI
