Description
If you’re running a modified engine with altered deck heights, distributor installation becomes a critical precision task—and misalignment can compromise ignition timing and lubrication. The MSD Adjustable Slip Collar 8539 solves this problem by enabling exact positioning of your MSD Pro-Billet distributor, ensuring proper gear mesh and lubrication groove alignment. Built from steel with a clear zinc finish, it delivers the durability and corrosion resistance your engine demands.
- Steel construction, clear zinc finish
- Compatible with MSD Pro-Billet distributors
- Adjustable for modified deck heights
- Dual crimp spark plug terminals
- Corrosion-resistant for longevity
- 1.25″ inside diameter
- Bolt-on installation
- MPN: 8539






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