JBA 57-74 Chevrolet Corvette 265-400 SBC 1-5/8in Primary Raw 409 Tight Tuck Header

If you're looking to get more out of your 1955-1974 Chevrolet Corvette's small-block engine, especially when rebuilding the top end or just looking for a bit more responsiveness, these JBA Tight Tuck Headers are a solid option. They replace the restrictive factory exhaust manifolds with a less restrictive design, which can help your engine breathe better. This improved airflow often translates to noticeable gains in power and torque, particularly in the RPM range where you do most of your driving.

These headers are constructed from 409 stainless steel tubing, chosen for its durability and resistance to corrosion, making them well-suited for daily driving and even more spirited use. The primary tubes are 1-5/8 inches in diameter, and they feature JBA's proprietary Firecone collector design. This design is based on race-proven technology and aims to maximize power and torque output. The flanges are a beefy 3/8-inch thick with oversized exhaust ports to ensure a good seal and efficient flow into the collector. They also include factory-style emission connections, which is important for maintaining emissions compliance where applicable, and come with high-quality hardware to help ensure a professional, leak-free installation.

Because these are designed as a 'tight tuck' header, they are intended to fit neatly within the Corvette's chassis, which can be crucial for clearance, especially with modifications. While they are designed for a direct fit, it's always a good idea to refer to the manufacturer's installation instructions for any specific details or tool requirements. Please note that these headers are not CARB approved and cannot be shipped to California.