Mr. Gasket Header Install Kit - Complete Header Gasket & Fastener Kit

Mr. Gasket Header Install Kits deliver a complete, all-in-one solution engineered to simplify header installation while ensuring a professional, leak-free result. Each kit combines premium Ultra-Seal exhaust gaskets, collector gaskets, and all required header and collector fasteners into a single convenient package — eliminating the hassle of sourcing individual components separately.

Key Features:

• Complete installation package — every kit includes all gaskets and fasteners needed for a full header installation in one box
• Premium Ultra-Seal gasket material — high-temperature graphite-impregnated facing bonded over a steel expanded-metal core, conforming to warped or irregular flanges for an airtight, leak-proof seal
• Slotted mounting bolt holes — Mr. Gasket was the first to incorporate slotted holes at the ends of each exhaust gasket, allowing installation without fully removing the header flange from the cylinder head for faster, easier service
• Withstands repeated heat cycling — Ultra-Seal gaskets resist cracking, deterioration, and breakdown under the extreme thermal demands of performance exhaust applications
• Engineered fasteners included — header and collector bolts are matched to deliver the correct clamp load needed to fully seal flange mating surfaces
• No gasket sealer required — Ultra-Seal exhaust gaskets are formulated to seal effectively without additional compounds or sealants
• Wide application coverage — available across a broad range of classic and modern engine configurations and port shapes to suit your specific build
• Backed by a limited warranty — supported by Mr. Gasket's decades of expertise in performance sealing technology, now proudly part of the Holley family of brands

Whether you're building a high-performance street machine, an oval-track racer, or a drag racing application, Mr. Gasket Header Install Kits take the guesswork out of header installation. By providing matched, application-specific components in a single package, these kits ensure every critical connection point is properly sealed for dependable, long-lasting performance. Select the correct variant for your engine configuration from the available options.