Fel-Pro Exhaust Manifold Gasket Set 1404 — High-Density Perforated Steel Core

Fel-Pro 1404 is a high-density exhaust manifold gasket set engineered to resist blowout and thermal degradation on high-temperature small-block V8 applications.

This gasket set is built for performance engines and restoration projects that demand a durable, reusable seal between the exhaust header and cylinder head. The design combines a perforated steel core with fiber-facing material on both sides and a nonstick coating that eases removal and resists high-heat failure, making it suitable for many GM small-block V8 engines where emission controls are not required.

Will these gaskets fit my engine and how do I confirm compatibility?

Compatibility covers a range of GM small‑block V8 engines commonly used in performance and replacement applications. Always verify vehicle fitment before ordering using the seller’s vehicle-selection or fitment guide to confirm year, make, model and engine size.

• Fits GMP Performance V8 and common small-block displacements including 262–400 cubic inches (4.3L–6.6L).
• Check the retailer’s confirmed-fit tool and read any special notes on fitment.
• Not intended for emission-controlled applications—confirm legal use in your vehicle.

How does the Fel-Pro 1404 resist exhaust blowout and high heat?

The gasket combines a perforated steel core with high-density fiber facing to withstand thermal cycling and exhaust gas pressure. The construction reduces the risk of gasket failure under repeated heating and cooling cycles common to performance use.

• Perforated steel core provides structural strength under pressure.
• Fiber-facing material on both sides absorbs irregularities for a consistent seal.
• Nonstick coating allows movement and simplifies future removal.

What features make installation and future service easier?

Fel-Pro designed this gasket set with installer-friendly details to speed fitting and reduce rework. Slotted bolt holes and the nonstick coating minimize alignment issues and make gasket removal cleaner during disassembly.

• Slotted bolt holes allow slight adjustment during header alignment.
• Nonstick coating prevents adhesive bonding to mating surfaces.
• Durable materials reduce the frequency of premature replacement.

Are there any limitations or special-use notes I should know?

These gaskets are engineered for performance and many restoration uses but are not appropriate where emissions equipment or legal restrictions require a specific OE gasket. Review fitment notes and local regulations before installation.

• Not intended for emission-controlled vehicles or where OEM emissions compliance is required.
• Verify compatibility if your engine has aftermarket headers or modifications.
• Inspect flange surfaces and torque bolts to manufacturer specs for a reliable seal.

Who this is for: The Fel-Pro 1404 gasket set is aimed at mechanics, hot‑rodders, and restoration enthusiasts installing aftermarket headers or replacing worn exhaust manifold gaskets on classic and performance small‑block GM V8s. Choose this set when you want a stronger-than-paper sealing solution with installer-friendly features and good heat resistance, and be sure to confirm fitment for your vehicle and application before purchase.