Product details:
Motor State Distributing has set the pace for high-performance automotive components for racing street and off-road use. Features. 7 in. Eliminates torsional crankshaft vibrations. Exceeds SFI 18.1 Certified 18.1 specs. Black zinc chromate finished. OEM equipment on ZZ572 GM Crate Engines. Tunable rebuildable and extremely efficient at ALL RPM. Laser engraved 360 timing marks. Internal Balance. Aluminum/Steel. Black. Small Block ChevroletCompatibility:. SFISpecifications. Size: 7 in.