- Air-Gap design features an open air space under the plenum
- RPM Air-Gap for 302-331-347 Small-Block Ford V8
- Larger runners over standard 7121 manifold
- Separates fuel and air from engine heat
- Race-Winning Technology
- Includes nitrous bosses
The Edelbrock Part #7521 RPM Air-Gap intake manifold is engineered for small-block Ford V8 engines, including the 302, 331, and 347 CID stroker applications. Designed with race-winning technology, it offers optimal performance in the 1,500 to 6,500 RPM range, making it an excellent choice for hot rodders, street machine enthusiasts, bracket racers, and builders seeking maximum horsepower. Its distinctive open air space under the plenum separates the fuel and air from engine heat, resulting in a cooler, denser charge that boosts overall power and throttle response. The larger runners, 7% bigger at the plenum entries compared to standard models, enhance airflow for larger CID stroker engines, delivering improved performance and efficiency. The manifold also features nitrous bosses for additional power options, although it does not include provisions for exhaust heated chokes or crossover passages. Compatibility with Ford automatic overdrive transmissions (AOD) is supported when used with the appropriate Lokar bracket, ensuring seamless integration into your build. Crafted for applications on vehicles like the 1980-1981 Mercury and Ford models, this intake manifold combines innovative design with race-level technology for serious horsepower gains and reliable performance under demanding conditions. Its robust construction and proven performance make it a top choice for high-performance small-block Ford V8 engines. Please note this product is not carbureted-approved and requires acknowledgment for carburetor installation. The Air-Gap design separates fuel and air from heat, ensuring cooler intake charge and maximizing engine output. This manifold is perfect for those looking to upgrade their engine's airflow dynamics with a proven, race-inspired design that enhances both street and race vehicle performance.
Features:
- Air-Gap design features an open air space under the plenum
- RPM Air-Gap for 302-331-347 Small-Block Ford V8 engines
- Larger runners for increased airflow and performance
- Separates fuel and air from engine heat for cooler, denser charge
- Incorporates race-winning technology for optimal power
- Includes nitrous bosses for added power options
- air_freight_prohibited:
- false
- not_carb_approved:
- true
- carb_acknowledgement_required:
- true
- ltl_freight_required:
- false
- prop_65:
- Y
- part_type:
- automotive
- epa:
- N/A
- regular_stock:
- false
- units_per_sku:
- 1