Air Flow Research (AFR) Intake Manifolds benefit from modern manufacturing methods, proprietary flow analysis, and comprehensive dyno testing for superior airflow and improved horsepower output.
AFR Eliminator Intake Manifolds are available in two designs. The dual plane configuration is intended for street performance engines that operate in the 1,500-7,000 RPM range. Single plane versions are available as-cast or CNC-port matched to AFR 195cc SBC Eliminator Street Heads. The manifolds are recommended for street/strip and racing engines with 3,000-7,500 RPM powerbands.
The cast aluminum Eliminator Intake Manifolds for Gen 1 small block Chevy engines can be installed right out of the box, or you can port-match the runners to your cylinder heads for more power. Other features include additional outlets in the rear of the manifold for custom coolant plumbing, bosses cast into the runners for optional fuel injectors or nitrous nozzles, and squarebore carburetor mounting pads.
AFR Magnum 18-Degree Intake Manifolds are precision CNC-machined so they can be run as cast if you wish, but there’s also plenty of material around the port openings if you want to port-match them to your cylinder heads. Bosses cast into the runners allow users to add fuel injectors or nitrous nozzles. Dominator carburetor flanges are used for maximum power-making potential. Pair these manifolds with AFR Magnum BBC Cylinder Heads for even more performance improvements.
AFR Magnum 18-Degree Intake Manifolds are available for standard and tall deck engines. They are recommended for engines with an operating range of 4,000-8,500 RPM.
Designed for use on serious street/strip and competition engines operating from 3,500-8,000 RPM, the Renegade Intake Manifold fits all 8.2-inch deck height blocks. Cast-in bosses allow the addition of fuel injectors or nitrous nozzles, and the squarebore mounting pad means you can run any 4150-style carb you want. Another cool feature is that the intake is delivered completely port-matched to AFR 185cc Renegade Street Cylinder Heads.
Designed specifically to fit AFR Bullitt Cylinder Heads, Bullitt Intake Manifolds feature an improved port design borrowed from AFR’s big block Chevy cylinder heads for improved airflow characteristics. Adding fuel injectors or nitrous nozzles is as easy as drilling and tapping the cast-in port bosses.
Bullitt Intake Manifolds are available with a squarebore carb pad for street applications or with a Dominator carb pad for race cars or other high-horsepower vehicles that see light street use. Manifolds have an operating range of 3,000-7,500 RPM.
Summit Racing carries a large selection of AFR brand cylinder heads, intake manifolds, and other parts and accessories for small/big Chevy and Ford, GM LS, and Gen III Mopar Hemi.