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Holley Big Block Chevy Hi-Ram EFI Intake Manifold Base; Satin

Item EK-28-907087
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-10% $788.36 Was $875.95

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      Product Information

      Features, Description, Q&A

      Features

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      • 2.40” Tall X 1.60” Wide Port Flange Openings, Uses Mr. Gasket Intake Manifold Gasket #5817
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      • Designed For 1965 & Later 396-502+ MKIV-MKVI Standard 9.80” Deck Height Big Block Chevy Engines With Standard Intake Flange Rectangle-Port Cylinder Heads
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      • Requires The Use Of Early Type GM Or Small Cap MSD Or Holley Distributors. Not Compatible With HEI Distributors
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      • Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish
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      • Power Band: 1500-8000 RPM
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      • The Coolant Outlet Is A Standard Chevy Thermostat Housing Flange And (2) 1/2 NPT And (1) 3/8 NPT Coolant Ports Are Provided
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      • MAP Sensor Port Is For A GM Gen IV LS MAP Sensor, Manifold Also Has Provisions For (1) 1/8 NPT, (1) 1/4 NPT, (1) 3/8 NPT Fittings To The Plenum
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      • Black Anodized EFI Fuel Rails Are Machined For -10AN O-Ring Fittings And Come Included With These EFI Hi-Ram Kits
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      • Fits 1965 And Later 396-502+ MKIV-MKVI Big Block Chevy Engines With Standard Intake Flange Rectangle-Port Cylinder Heads
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      Description

      High-Performance EFI Intake. The Holley Big Block Chevy Hi-Ram EFI Intake Manifold Base; Satin is designed to enhance airflow and fuel delivery for improved engine performance. It serves as the foundation for a fuel injection system, providing exceptional power band coverage from 1500 to 8000 RPM. This manifold base is integral for enthusiasts upgrading traditional Big Block Chevy engines to modern EFI setups.

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      Construction and Appearance. Crafted from durable 356-T6 cast aluminum to ensure strength and heat resistance, this manifold features a natural, satin as-cast finish. Its port flange openings are precisely machined for a reliable seal using specified gaskets, while black anodized fuel rails with -10AN O-ring fittings are included for efficient fuel delivery.

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      Installation. Installation requires compatibility with early style GM or small cap MSD or Holley distributors, as it is not compatible with HEI distributors. The manifold is designed for direct bolt-on with no need for additional drilling or modifications, making the upgrade straightforward for experienced mechanics.

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      Warranty. This product comes with a manufacturer’s limited 90-day warranty.

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      Application. Intended exclusively for 1965 and later 396-502+ MKIV-MKVI Big Block Chevy engines equipped with standard intake flange rectangle-port cylinder heads. This manifold does not support HEI distributors and fits only engines with a 9.80” deck height.

      Holley 300-961

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

      5.0

      Reviews of Holley Classic Intake Products (1)

      Questions & Answers

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