Edelbrock 2604 - Performer Air-Gap Manifold, Chevrolet Small Block, 55-86

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  • EDL-2604
Edelbrock Part # 2604 Performer Air-Gap intake manifold is designed for 1987-95 cast iron heads... more
Edelbrock 2604 - Performer Air-Gap Manifold, Chevrolet Small Block, 55-86

Edelbrock Part # 2604 Performer Air-Gap intake manifold is designed for 1987-95 cast iron heads with canted center bolt holes small-block Chevys. This design features an open-air space that separates the runners from the hot engine oil resulting in a cooler, denser charge for more power. High-velocity runners deliver excellent throttle response throughout the power band. The great looks of the Performer Air-Gap along with the solid idle to 5500 rpm performance make this an ideal choice for street rods and street machines. Fits spread-bore or square-bore carburetors. Will not fit under stock Corvette hood.

  • Based on Performer series with a unique air gap
  • Air gap causes cool and dense mixture more power
  • For idle to 5500 RPM street-driven performance
  • Dual-plane low-rise Intake with 180-degree firing order
  • Patented runner design ensures broad torque curve
  • Excellent throttle response and mid-range power
  • Fits both spread-bore and square-bore carburetors
  • Ideal for street rods and street machines
Car/Engine: Chevrolet Small Block
Engine Notes: 262-400 cui - 1987-95 Cast Iron Heads
Color/Finish: Satin
RPM Range: Idle-5500
Serie: Performer Air-Gap
Emission: Without EGR
Flange: Square Bore, Spread Bore
Intake Style: Dual Plane
Usage: Street
Carburator Setup: Single-Carburator
Related links
Documentation... more
Installation Notes
    • Manifold height: A-3.72", B-4.92" (.27" taller than # 2101)
    • Carburetor pad height: 4.32"
    • Carburetor recommendations: Edelbrock AVS2 or Performer Series 500-650 cfm. Use Bracket # 8031 or # 8036 for 1972-78.
    • Camshaft Recommendations: Performer Plus #2102 and #2103
    • Port exit dimensions: 1.14" x 1.88"
    • Recommended intake gasket: GM # 10163409
    • Use RTV sealant to properly seal end seals, such as Edelbrock High Temp Silicone sealant # 1076, DO NOT USE END SEALS GASKETS.
    • Sealant must be used on intake bolt threads if the threads extend into lifter valley or coolant passage.
    • NPT/Pipe thread fittings require the use of Teflon tape or paste on threads to ensure proper seal.
    • DO NOT OVERTIGHTEN NPT/Pipe fittings, this may cause the aluminum to crack around the fitting boss. NPT/Pipe thread is a tapered thread.
    • Hardened washers Must be used with intake bolts to ensure proper torque and prevent galling of the aluminum.
    • Will not fir under stock Corvette hood
    • Even though manifolds are compatible with EGR systems, this does not mean they are legal for use on emissions controlled vehicles. Check local laws for legality.
    • Proper installation is the responsibility of the installer. Improper installation will void your warranty and may result in poor performance and engine or vehicle damage.
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