COMETIC Complete Gasket Kit - Standard - XB9 C9857

A complete gasket failure can leave you stranded—or worse, cost you a race. The COMETIC Complete Gasket Kit C9857 eliminates guesswork by providing every gasket your XB9 engine needs, engineered with premium materials proven to handle sustained performance demands. Whether you're rebuilding after a blown motor or performing preventative maintenance before competition season, this kit ensures proper sealing across all critical engine interfaces.

COMETIC's reputation in motorsports is built on precision engineering and material science. Each gasket in this kit is purpose-engineered for its application, using Multi-Layer Steel construction where it matters most and specialized Viton coatings where durability is non-negotiable. This isn't a budget compromise—it's the same specification trusted by professional racing teams.

• Multi-Layer Steel head gaskets
• Steel Viton®-coated base gaskets
• Blue Viton valve stem seals
• AFM race-style exhaust gaskets
• Includes motor gasket kit
• Primary cover gaskets included
• Derby cover gaskets included
• Inspection cover gaskets included
• Fits XB9 engines
• Made in U.S.A.
• MPN: C9857