Air and Fuel› Intake Manifolds and Components

ENGINEQUEST

Cast Iron Marine Intake Manifold for Chevy 5.0L/5.7L

$381.55

SKU: EQ-IN350MB

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In Stock
Ships by Sep 9
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30 Days Return
INSTALL DIFFICULTY
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Moderate — 2–4 hours

Overview

The EngineQuest EQ-IN350MB is a cast iron marine intake manifold designed for Chevy 5.0L and 5.7L engines from 1969-95.

This manifold features a 4-barrel universal carburetor mounting and a 15-degree carb flange. It has port volumes of 211 +/- 2 cc for intake and 76 +/- 2cc for exhaust. The port dimensions are 2.232” +/- .005 - 1.020” +/- .005 for intake and 1.180” +/- ..005 – 1.576” +/- .005 for exhaust.
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The EngineQuest EQ-IN350MB is a robust cast iron marine intake manifold engineered for 1969-1995 Chevrolet 5.0L and 5.7L V8 engines. This intake manifold is designed with a universal 4-barrel carburetor mounting and features a 15-degree carb flange for optimal air-fuel mixture distribution. It boasts precise port dimensions, with intake ports measuring 2.232” +/- .005 by 1.020” +/- .005, and exhaust ports at 1.180” +/- .005 by 1.576” +/- .005. The port volumes are specified at 211 +/- 2 cc for intake and 76 +/- 2cc for exhaust, ensuring efficient flow characteristics for marine applications. CNC machining ensures an exact fit and precise bolt hole locations for straightforward installation.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandENGINEQUEST
Part NumberEQ-IN350MB
CategoryAir and Fuel

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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