SB Chevy Exhaust Gaskets Brodix Spread Port Round

The SB Chevy Exhaust Gaskets Brodix Spread Port Round (FEL-PRO 1409) is a precision-engineered exhaust header gasket pair designed for Small Block Chevrolet engines equipped with Brodix spread-port cylinder heads. Built for engine builders, performance technicians, and serious enthusiasts who demand leak-free exhaust sealing, these gaskets prevent combustion gases from escaping at the manifold-to-head interface—a critical function that protects both engine longevity and dyno performance. Proper exhaust sealing is non-negotiable in high-performance and competition builds where even minor leaks compromise air-fuel ratio measurement and reduce measurable horsepower.

These gaskets feature a steel core laminate construction with 1.810-inch round port geometry, engineered specifically for Brodix spread-port head configurations. The steel core provides structural integrity under thermal cycling and high-exhaust-gas temperatures typical of small block Chevy performance engines, while the laminate layers ensure consistent sealing pressure across the gasket face. FEL-PRO's laminate design resists gasket creep and blowout, maintaining a reliable seal across repeated heat cycles—essential for street, strip, and track applications where temperature swings can exceed 400°F.

Installers and engine builders working with Brodix spread-port small block Chevy heads will find these gaskets indispensable during header or exhaust manifold installation. The pair format ensures matched gaskets for left and right cylinder banks, eliminating guesswork and reducing installation time. Proper torque sequence and surface preparation—clean, smooth mating surfaces free of old gasket material—are essential for optimal sealing performance and longevity.