Cool Gap Intake Manifold for 1955-1996 Small Block Chevy, Dual Plane [Polished]
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JEGSPART NUMBER: 555-513027

Cool Gap Intake Manifold for 1955-1996 Small Block Chevy, Dual Plane [Polished]

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Small Block Chevy
Cool Gap Intake Manifold
  • 1955-1996 Small Block Chevy
  • Dual Plane
  • 4-BBL Square Bore 4150/4160 Mounting Flange
  • (Non-EGR)
  • RPM Range: 1500-6500
  • Cast Aluminum
  • Polished Finish

    JEGS 513027 Intake Manifold Features:

    • Fits 1955-1996 Small Block Chevy 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 V8 Engines
    • Dual Plane design for optimum fuel distribution
    • Accepts 4150/4160 4-BBL square bore carburetors
    • Cool Gap design keeps hot engine oil away from intake runners resulting in a cooler, denser charge for more horsepower, torque, and efficiency
    • Designed for 23-degree heads with standard port location
    • This Manifold has a dual center bolt pattern and includes adapter bushings for 1955-1986 and 1987-1995 heads
    • Will not fit Chevy Bowtie Heads
    • (8) Intake runner bosses cast in for nitrous or fuel injector ports
    • Port exit dimensions: 1.185 in. W x 2 in. H
    • Estimated runner length - Shortest: 5.00 in.
    • Estimated runner length - Longest: 6.250 in.
    • Manifold height: Front (A) 4.375 in., Rear (B) 5.250 in. ( A + B divided by 2 = 4.8125 in.)
    • Click here to determine the carburetor pad height
    • 2 Front and Rear 1/2 in. NPT water outlet ports for additional cooling
    • 1 Rear 3/8 NPT vacuum port
    • Provisions for dual distributor hold-downs
    • Accepts late-model choke, water neck, AC, alternator, and HEI
    • No provision for divorced or heated choke

    Additional Recommended Items (Sold Separately):

     

    JEGS Carb Recommendations/Notes
    Carburetors
      570 CFM 670 CFM 770 CFM
    Up to 300 HP 300 to 400 HP 400 to 500 HP
    Manual Choke 510-0-81570 510-0-81670 510-0-81770
    Electric Choke 510-0-80570 510-0-80670 510-0-80770
    Carburetor Studs
    555-15840 1-1/2" Studs Suggested for carb and gasket only
    555-15841 2" Studs Suggested for carb and 1/2" spacer
    555-15842 2-1/2" Studs Suggested for carb and 1" spacer
    555-15846 3-1/2" Studs Suggested for carb and 2" spacer
    Carburetor Base Gaskets
    555-16100 Open (Square Flange)
    555-16105 4-Hole (Square Flange)
    Intake Manifold Bolts
    555-83200 Small Block Chevy - Standard

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    • Cooler Intake Temperature Makes Horsepower

      JEGS Cool Gap dual-plane intake manifold is more efficient and creates more horsepower than standard dual-plane models. This manifold's unique air space design under the plenum and runners allow airflow to pull off excess heat, decreasing the intake temperature and providing better fuel atomization for improved performance. The 4150/4160 carb flange accepts most non-EGR 4-bbl square bore carburetors; this cast aluminum manifold is available in satin and polished finishes.

    Part TypeIntake Manifold
    Product LineJEGS Cool Gap Performance Intake Manifolds
    BrandJEGS
    Package Height7.1
    Package Width11.4
    Package Length23.9
    Weight17.05 PG
    Part CategoryPerformance Parts
    Engine Block StyleStock/OEM standard deck
    UsageStreet/Hi-Performance
    Intake MaterialCast Aluminum
    Intake StyleDual Plane (Air Gap)
    EmissionWithout EGR
    Port Width1.18 in (30 mm)
    Cylinder Head TypeStandard
    Intake FinishPolished
    Engine Make/SizeChevy Small Block
    Port Height2 in (50.8 mm)
    Intake Section IncludedComplete
    Basic Operating Rpm Range1,500-6,500
    Rpm Range1500-6500
    Part FitmentSemi Universal
    Intake Manifold Height4.8 in (121.92 mm)
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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