Edelbrock 7521 RPM Air-Gap Intake Manifold Small Block Ford 302 331 347

The Edelbrock 7521 RPM Air-Gap intake manifold is engineered for small-block Ford 302, 331, and 347 cubic inch V8 engines, delivering superior performance for hot rodders, street machines, and bracket racers. The innovative Air-Gap design features an open air space that separates the intake runners from the heat of the lifter-valley cover, keeping the air/fuel mixture cooler all the way to the heads for a denser charge and more power.

Key Features:

• Optimized RPM range of 1,500 to 6,500 RPM for street performance
• Dual-plane design with 4.90-inch intake manifold height
• Features 7% larger runners at plenum entries compared to standard Performer RPM design, ideal for stroker engines
• Includes nitrous bosses for nitrous oxide system installation
• Cast aluminum construction with natural satin finish
• Port exit dimensions: 1.04" x 1.85"
• Square-bore carburetor flange (4150 style)

Design Benefits:

• Incorporates race-winning technology from Edelbrock's Victor Series competition intakes
• Cooler intake charge temperatures for increased horsepower and torque
• No exhaust crossover or provision for exhaust-heated chokes
• Compatible with standard deck height small-block Ford engines
• Works with Edelbrock carburetors and Ford AOD transmissions (with Lokar bracket SRK-4000)

This intake manifold is ideal for performance street applications where maximum power in the mid-range RPM band is desired. The proven Air-Gap technology delivers measurable gains in both horsepower and throttle response while maintaining excellent street manners.