Edelbrock RPM Air-Gap INTAKE MANIFOLD FOR Small Block Ford 351W 

Fits following vehicles

Edelbrock part #7581 RPM Air-Gap 351W intake manifold is designed for street and high performance 351-427 c.i.d. 351W Ford V8 applications. The RPM Air-Gap incorporates the same race-winning design that's been used on our Victor Series competition intakes for decades. The Air-Gap design features an open air space that separates the runners from the hot engine oil resulting in a cooler, denser charge for more power. Larger cross sectional area and a taller carb flange than #7181 for compatibility with large displacement, stroker 351W based engines. Includes bosses for nitrous and rear water crossover. Edelbrock carbs will work with Ford automatic overdrive trans (AOD) when used with Lokar bracket SRK-4000.

Specs

UPC00085347075812
SeriesRPM Air-Gap
Grade TypePerformance
Gasket Or Seal IncludedNo
Vehicle ModelFord
Ec Basic Operating Rpm Range1500-6500 RPM
Installation Notes
  • Use 12-bolt intake gasket set Edelbrock #7220 recommended; Manifold height: A-5.31", B-6.19"; Carb pad height: 5.75"; Carb recommendations: Edelbrock Thunder Series AVS or Performer Series 650-800 cfm. For automatic transmissions use #1483 and #1491 or #1844.; Port exit dimensions: 1.07" x 1.88"; 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.
Center Maximum Height4.800 in
CNC PortedNo
FinishSatin
Front Maximum Height4.300 in
MaterialAluminum
Rear Maximum Height5.300 in
Single Or Dual Plane TypeDual

OEM Part numbers

7581

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VEHICLE COMPATIBILITY
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DEFECT/DELAY
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