Fel-Pro Exhaust Manifold Gasket Set for GM Small‑Block V8s — 1404, Perforated Steel Core & Nonstick Coating

Fel-Pro 1404 is a performance exhaust manifold gasket set engineered to seal high-temperature header joints on small‑block V8 engines without compromising durability or serviceability.

This gasket set is built for high-heat applications where exhaust headers are subject to vibration, thermal cycling and heavy exhaust flow. Fel-Pro combines a perforated steel core with high-density fiber facing and a nonstick coating to resist blowouts and simplify future disassembly. The design targets older GM small‑block families and many GMP performance V8 applications, providing a stronger alternative to basic paper gaskets while preserving installation ease.

Which engines and vehicles is this gasket set compatible with?

The 1404 set is made for a range of GM small‑block V8s commonly used in performance and restoration projects. Confirm fit by checking your vehicle details against the supplier fitment tool before ordering. This product is not intended for emission-controlled vehicle applications.

• Fits GM Performance V8 families including 262 (4.3L), 265 (4.3L), 267 (4.4L), 283 (4.6L) and 302 (4.9L).
• Also compatible with 305 (5.0L), 307 (5.0L), 327 (5.3L), 350 (5.7L) and 400 (6.6L).
• Verify using the Amazon Confirmed Fit bar: enter year, make, model, engine and trim to confirm match.

How does the Fel-Pro 1404 resist exhaust leaks and heat-related failure?

The gasket uses a perforated steel center with high-density fiber on both faces to combine structural strength and a reliable sealing surface. The construction reduces the risk of blowout and burnout compared with standard paper gaskets, while the nonstick coating prevents adhesion to the header or manifold.

• Perforated steel core provides mechanical integrity under thermal stress.
• High-density fiber facing conforms to flanges for an effective seal.
• Nonstick coating enables easier removal during maintenance and reduces gasket-to-metal bonding.

What installation and service features should I know about?

Fel-Pro designed the 1404 with practical features that simplify fitting and future servicing. Slotted bolt holes accommodate alignment variations encountered with aftermarket headers, and the nonstick surface reduces the chance of tearing when disassembling the exhaust system.

• Slotted bolt holes allow easier alignment with aftermarket and factory header bolt patterns.
• Nonstick coating reduces gasket tearing and speeds up removal for engine service.
• Durable materials tolerate repeated thermal cycles common in performance use.

Are there any restrictions or special fitment notes?

This gasket set is intended for performance and racing-style headers rather than emission-controlled factory manifolds. Always check vehicle-specific fitment notes and supplier qualifiers before purchase to ensure compatibility with your engine and exhaust configuration.

• Not intended for use in emission-controlled vehicles; check local regulations.
• Confirm fit with vehicle details and hover over any fitment notes on the product page for specifics.
• Designed for high-temperature header applications typical of racing and modified street engines.

Who is this for: The Fel-Pro 1404 Exhaust Manifold Gasket Set is aimed at mechanics, restorers and performance enthusiasts installing aftermarket headers or upgrading exhaust seals on GM small‑block V8 engines. If you need a heat-resistant, service-friendly gasket that stands up to repeated thermal cycling and high exhaust temperatures, this set is a practical choice. Before buying, verify exact fitment for your year, make, model and engine to ensure correct application.