BBC Intake Gasket w/ Steel Core

The FEL-PRO BBC Intake Gasket w/ Steel Core (MPN 1275 S-3) is a precision-engineered intake manifold gasket designed for big block Chevy engines requiring reliable sealing between the intake manifold and cylinder head. As a seasoned mechanic, you know that intake gasket failure compromises combustion efficiency, causes coolant leaks, and creates vacuum leaks that trigger check engine lights and poor idle quality. This gasket solves those problems with proven FEL-PRO engineering, trusted by engine builders and street mechanics alike for over 70 years.

The BBC Intake Gasket features a steel core laminate construction with a 0.065-inch thickness and rectangular port dimensions of 1.82 x 2.54 inches, optimized for big block Chevy port geometry and manifold sealing surfaces. The Printoseal facing material provides superior gasket conformability, allowing the gasket to seal tighter across surface imperfections without crushing or degrading under heat and pressure cycling. The steel core laminate resists extrusion and maintains compression set, ensuring consistent sealing performance whether you're running stock cast iron manifolds or modern aluminum heads. This pair gasket design means you're getting matched left and right intake seals in one package, eliminating the hassle of sourcing individual pieces.

This gasket is ideal for restorers, street engine builders, and mechanics rebuilding classic big block Chevy platforms—454, 427, 402, and earlier displacement variants. Installation is straightforward: clean both manifold and head surfaces thoroughly, position the gasket pair, and torque the intake manifold bolts to factory specification in a cross-pattern. The 0.55-pound weight and compact 26.75-inch length make handling easy during assembly. Whether you're freshening an original engine or completing a performance rebuild, the FEL-PRO BBC Intake Gasket w/ Steel Core delivers the sealing durability and pressure retention that separates a leak-free engine from a disappointing comeback.