- 7 stage prewash and 4 stage coating for durability and beauty
- Outstanding performance for any 1500-6500 rpm application
- Long runner high-rise design for broad torque curve
- No polishing, just wipe and go!
- Bright Chrome Plasma finish
The Edelbrock Part PN 7521-CP RPM Air-Gap intake manifold is engineered specifically for small-block Ford V8 engines, including 289, 302, and 347 CID stroker applications. Designed for optimal performance in the 1,500 to 6,500 RPM range, this intake manifold is ideal for hot rods, street machines, bracket racers, and enthusiasts seeking maximum horsepower with a striking appearance. The Air-Gap design features an open plenum that separates the runners from the hot engine, resulting in cooler, denser intake charges that translate into increased power and torque. This design is especially beneficial for larger CID stroker engines, as it incorporates larger runners—7% at the plenum entries—compared to standard models, providing improved airflow and performance across a broad RPM range. The PN 7521-CP version boasts a durable, easy-to-maintain Chrome Plasma finish that enhances the engine bay aesthetics and resists corrosion. Equipped with nitrous bosses, it offers additional performance tuning options, although it does not include provisions for exhaust heated chokes or an exhaust crossover. Compatibility with Edelbrock carbs and Ford automatic overdrive transmissions (AOD) is maintained when used with a Lokar SRK-4000 bracket, making it versatile for various builds. This intake manifold requires acknowledgment of carb compatibility and is not CARB approved, ensuring it meets performance standards for racing and off-road applications. The product features a robust construction with a long-lasting finish, designed to withstand the rigors of high-performance driving. Its high-rise, long runner design contributes to a broad torque curve, making it suitable for a range of performance applications and driving styles. Whether customizing a street rod or building a race engine, the Edelbrock RPM Air-Gap intake provides a combination of style, durability, and performance that meets the demands of serious enthusiasts and professional builders alike.
Features:
- Open Air-Gap design separates runners from hot engine, resulting in cooler, denser intake charge for increased horsepower
- Larger runners (7% at plenum entries) enhance airflow for bigger CID stroker engines
- Chrome Plasma finish is durable, corrosion-resistant, and easy to maintain with a simple wipe
- Optimized for 1,500 to 6,500 RPM performance range, ideal for street, strip, and racing applications
- Includes nitrous bosses for added tuning options, no provisions for exhaust heated chokes or crossover
- air_freight_prohibited:
- false
- not_carb_approved:
- true
- carb_acknowledgement_required:
- true
- ltl_freight_required:
- false
- prop_65:
- Unknown
- part_type:
- automotive
- epa:
- N/A
- units_per_sku:
- 1
