Edelbrock 7521 RPM Air-Gap Intake Manifold for Small-Block Ford V8 Engines (289, 302, 331, 347)

Description

Edelbrock Part #7521 RPM Air-Gap intake manifold is designed for the small-block 302 CID Ford V8 or 331-347 stroker applications. The RPM Air-Gap incorporates the same race-winning technology that?s been used on our Victor Series competition intakes and is the perfect manifold for hot rodders, street machine enthusiasts, bracket racers or any builder looking for optimum performance in the 1,500-6,500 RPM range with a serious look of horsepower under the hood. The Air-Gap design features an open air space under the plenum that separates the runners from the hot engine resulting in a cooler, denser charge for more power. The 7521 RPM Air-Gap features larger runners (7% at the plenum entries) than the standard 7121 Performer RPM design that is beneficial to larger CID stroker engines. The 7521 includes nitrous bosses but no provision for exhaust heated chokes and no exhaust crossover. Edelbrock carbs will work with Ford automatic overdrive trans (AOD) when used with Lokar bracket SRK-4000. 

UPC	085347075218
Series	RPM Air-Gap
Material	Aluminum
Finish	Satin
Gasket Or Seal Included	No
Vehicle Model	Ford
Availability Note	Available to Order
Warranty	12 Months
RPM Range	1500-6500 RPM
Emissions Code
Features and Benefits	• RPM Air-Gap for 302-331-347 Small-Block Ford V8. • Air-Gap design features an open air space under the plenum. • Separates fuel and air from engine heat. • Larger runners over standard 7121 manifold. • Includes nitrous bosses.
Hazardous Materials Warning	WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
Installation Notes	Will not fit 255 c.i.d. V8; Not recommended for 289; Recommended intake gasket: Edelbrock #7220; Manifold Height: A-4.30″, B-5.50″; Carb pad height: 4.90″; Carb recommendations: Edelbrock AVS2 or Performer Series 600-800 cfm. For automatic transmissions use #1483 and #1490 or #1844.; Port exit dimensions: 1.04″ x 1.85″; Use RTV sealant to properly seal end seals, such as Edelbrock High Temp Silicone sealant #1076, DO NOT USE END SEALS GASKETS.; Hardened washers Must be used with intake bolts to ensure proper torque and prevent galling of the aluminum.
Rear Maximum Height	5.500 in
Single Or Dual Plane Type	Dual

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