SBC Performer Q-Jet Manifold - 262-400

The Edelbrock SBC Performer Q-Jet Manifold for 262–400 cubic inch Small Block Chevy engines is a dual-plane aluminum intake manifold engineered for street and moderate performance applications. Built to accept square-bore and spread-bore carburetors, this manifold delivers the mid-range torque characteristics critical for drivability and throttle response in naturally aspirated small-block Chevy powerplants. The dual-plane design segregates cylinder charge paths to optimize airflow distribution across the engine's operating range, providing measurable gains in torque delivery from 2,000 to 5,500 RPM.

Constructed from cast aluminum with a natural finish, the manifold weighs 15.93 lbs and measures 12 x 6 x 22 inches, making it compatible with standard small-block installations from 262 to 400 cubic inches. The dual-plane configuration creates separate runner paths for the front and rear cylinder banks, which enhances port velocity and combustion efficiency at lower engine speeds—a critical advantage for street engines prioritizing throttle control and part-throttle responsiveness over peak horsepower. This design strategy is favored in applications where consistent, predictable power delivery matters more than maximum RPM output.

The SBC Performer Q-Jet Manifold is intended for street-driven small-block Chevy applications, including light-duty trucks, classic muscle cars, and restorations where carbureted induction and reliable mid-range performance are priorities. Buyers selecting this manifold typically seek a balance between bolt-on convenience and measurable performance improvement without requiring extensive engine modifications. Edelbrock's Performer line has maintained a proven track record in the small-block Chevy market for decades, making this manifold a standard reference point for carbureted street engine builders and restorers.