Intake Gasket - BBC BB-3 Extra (Each)

The Intake Gasket – BBC BB-3 Extra by Brodix is engineered for serious big-block Chevy builders who demand reliable sealing between the intake manifold and cylinder head. This gasket sits at a critical junction in your engine's fuel and air delivery system, preventing leaks that would otherwise rob horsepower, cause vacuum leaks, and lead to costly coolant loss. Whether you're restoring a classic muscle car or assembling a high-performance street or competition engine, a quality intake gasket is non-negotiable for long-term reliability and consistent performance.

Constructed from rubber-coated composite material, this gasket is precisely engineered to 0.06 inches thick with 1.865 x 2.48 inch oval ports, optimizing the seal for BBC big-block applications. The composite construction combines the conformability of rubber with the structural integrity needed to withstand combustion chamber pressures, temperature cycling, and the clamping forces of modern intake manifold bolts. The oval port design matches Brodix BB-3 Xtra O cylinder heads, ensuring proper alignment and eliminating the guesswork during assembly—critical for achieving a gas-tight seal that won't weep or fail prematurely.

This gasket is ideal for big-block Chevy engine builds—particularly those running Brodix BB-3 Xtra O heads—where precision and durability directly impact performance longevity. Installation is straightforward: seat the gasket dry (no sealant required on composite gaskets), torque the intake manifold bolts to specification in a star pattern, and verify no coolant bypass or vacuum leak develops. Mechanics and engine builders who prioritize proven component compatibility appreciate gaskets that are manufactured to exact OEM specifications, eliminating the risk of mismatched port geometry that can cause mid-manifold leakage even under moderate boost or high RPM.