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1966-84 Ford Bronco Edelbrock 7521 RPM Air-Gap Manifold, 289ci-302ci

Item EK-51-398539-1
76 Reviews of Edelbrock
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$454.95

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      Product Information

      Features, Description, Q&A

      Features

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      • Part Type Engine Intake Manifold
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      • Manufacturer Edelbrock
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      • Application Application Specific
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      • Series RPM Air-Gap
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      • Material Aluminum
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      • Finish Satin
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      • Gasket Or Seal Included No
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      • Vehicle Model Ford
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      • Warranty 12 Months
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      • RPM Range 1500-6500 RPM
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      • Features And Benefits RPM Air-Gap For 302-331-347 Small-Block Ford V8
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      • Features And Benefits Air-Gap Design Features An Open Air Space Under The Plenum
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      • Features And Benefits Separates Fuel And Air From Engine Heat
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      • Features And Benefits Larger Runners Over Standard 7121 Manifold
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      • Features And Benefits Includes Nitrous Bosses
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      • 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 Seal Gaskets; Hardened Washers Must Be Used With Intake Bolts To Ensure Proper Torque And Prevent Galling Of The Aluminum
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      • Rear Maximum Height 5.500 In
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      • Single Or Dual Plane Type Dual
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      • Fits Small-Block Ford 302-331-347 V8 With Exclusion For 255 C.I.D. V8 And Not Recommended For 289
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      Description

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      Performance Intake Manifold. The Edelbrock 1966-84 Ford Bronco Edelbrock 7521 RPM Air-Gap Manifold, designed for 289ci-302ci, is engineered for small-block Ford V8 engines, including 302, 331, and 347 stroker variants. It enhances airflow and performance within the 1,500-6,500 RPM range, making it ideal for hot rods, street machines, and bracket racers seeking improved horsepower through optimized air charge cooling and flow.

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      Construction and Appearance. This intake manifold is crafted from high-quality aluminum and finished with a satin texture for durability and a sleek under-hood appearance. Its dual-plane design includes an open air gap under the plenum, isolating runners from engine heat to promote cooler and denser air intake.

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      Installation. Installation requires moderate mechanical skill without the need for drilling modifications. Proper sealing with RTV silicone is necessary, and hardened washers should be used on intake bolts to prevent galling on the aluminum surface.

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      Warranty. This intake manifold is backed by a 12-month manufacturer warranty. Application. Fits Small-Block Ford 302-331-347 V8 engines but does not fit the 255 CID V8 and is not recommended for the 289 variant.

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.6

      Reviews of Edelbrock Classic Intake Products (76)

      Questions & Answers

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