18 Deg. SB Chevy Ex. Gsk PORT SIZE 1.74in x 1.6in

The FEL-PRO 18 Degree SB Chevy Exhaust Gasket with 1.74in x 1.6in port size is a precision engine seal designed for small-block Chevrolet cylinder head applications. This exhaust manifold gasket is crucial for builders and mechanics working on carbureted, early fuel-injection, or performance small-block platforms, ensuring reliable containment of hot exhaust gases.

Manufactured with advanced composite materials, this gasket can withstand sustained temperatures exceeding 1,200°F while maintaining a reliable seal through numerous heat cycles. The 18-degree port angle aligns perfectly with small-block Chevy cylinder head casting designs, minimizing gaps that could allow exhaust bypass. Its composition also resists gasket creep and blowby, making it suitable for aggressive engine tuning or high-rpm sustained operation.

This gasket is essential for any small-block Chevy engine rebuild, refresh, or manifold replacement, whether for street engines, weekend racers, or vintage restorations. Proper installation requires clean mating surfaces, correct bolt torque sequence, and careful handling to avoid tearing the composite material.