MSD 8561 Iron Distributor Gear For MSD Chevy Marine Distributors

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A distributor's performance is only as good as its drive gear. MSD Ignition has put a great deal of effort into researching and testing a variety of metallurgical compositions, hea t treating and coatings to provide you with a durable, accurate and strong distributor gear. MSD engineers have built test fixtures and spent hundreds of hours testing and evaluating the metallurgy of our gears. The result is a special iron alloy gear that is treated to a low-friction coating process. Features: Increased outer hardened layer thickness (RC 55-60) Micro polished surface for smooth contact Proprietary formulated ductile iron Melonite QPQ coated reduces friction and initial wear Interstitial carbide concentration improves wear resistance and running properties Show more