Silver Seal Products Kwik-Way 13/16 -13 Valve Seat Stone With Sioux 11/16 -16 Thread Stone Holder. Professional engine machine shop component manufactured to exacting tolerances for reliable performance.

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Silver Seal Products delivers professional-grade engine components and machine shop supplies trusted by engine rebuilders. This valve seat stone is manufactured to precise specifications for dependable performance.

• Professional-grade valve seat stone | Silver Seal quality manufacturing | Designed for engine machine shop applications | Precision-engineered for reliable performance