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EDELBROCK
EDELBROCK #7521 - RPM Air-Gap Intake Manifold for Small-Block Ford
EDELBROCK #7521 - RPM Air-Gap Intake Manifold for Small-Block Ford
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$419.95 USD
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$419.95 USD
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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.
Intake Section Included:Â Complete
Engine Block Deck Height:Â Standard deck
Carburetor Quantity:Â One
Intake Style:Â Dual plane
Basic Operating RPM Range:Â 1,500-6,500
Intake Manifold Height:Â 4.900 in.
Intake Finish:Â Natural
Intake Material:Â Aluminum
EGR:Â No
Quantity:Â Sold individually.
Notes:Â 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 aluminun
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