AFR - Air Flow Research

06/03/2026

🚨 NEW AFR BBC Rectangle Port Single Plane Intake Manifold 🚨

Engineered for maximum airflow and race-winning performance, the AFR BBC Magnum Rectangle Port Single Plane Intake is purpose-built for serious big block Chevrolet combinations. Designed specifically to complement AFR’s 357cc–385cc rectangle port cylinder heads, this intake is optimized for 540+ cubic inch engines operating in high-RPM environments up to 8000 RPM.

Featuring a large, race-proven plenum and precision-tuned runner geometry, the Magnum intake delivers exceptional cylinder-to-cylinder distribution and high-RPM efficiency. The 4500 Dominator fl**ge provides the airflow capacity required for aggressive camshaft profiles and high-demand fuel systems, making it an ideal choice for naturally aspirated race engines as well as power-adder applications.

When paired with AFR’s high-flow rectangle port heads, the Magnum intake completes a fully optimized top-end package designed to perform at the highest level.

06/01/2026

AFR 24⁰ Magnum cylinder heads + AFR Magnum stud girdles = BOSS

05/27/2026

🚨NEW PRODUCT ALERT🚨

AFR is expanding its Small Block Ford intake lineup with the release of our new Dual Plane Aluminum Intake Manifold for 8.2 deck height engines.

This intake delivers excellent street performance and throttle response for 302, 331, and 347 Windsor combinations. The dual plane runner design enhances low and mid-range torque while maintaining strong airflow for higher RPM operation. Ideal for street performance and street/strip builds, it pairs perfectly with AFR Small Block Ford cylinder heads to complete a high-performance Windsor top end.

05/27/2026

This beauty built by .performance.engines is running AFR cylinder heads and a dual plane Eliminator intake manifold.

05/26/2026

AFR is expanding its Small Block Ford intake lineup with the release of our new Dual Plane Aluminum Intake Manifold for 8.2 deck height engines.

This intake delivers excellent street performance and throttle response for 302, 331, and 347 Windsor combinations. The dual plane runner design enhances low- and mid-range torque while maintaining strong airflow for higher RPM operation. Ideal for street performance and street/strip builds, it pairs perfectly with AFR Small Block Ford cylinder heads to complete a high-performance Windsor top end.

05/22/2026

Have you checked out AFR's new line of SBC camshafts?

05/20/2026

This 383 small block Chevy built by made 511 horsepower & 518 ft-lbs of torque with AFR 195cc Enforcer cylinder heads! Swipe to see the dyno graph.

05/20/2026

05/19/2026

When your boat engine also has AFR heads 😎👏