Carbureted Single Plane Intake Manifold for Small Block Ford 289-347
The new single plane intake manifolds are designed to provide a broad RPM powerband for high-performance street/strip engine applications to a maximum engine speed of 7500 RPM. The carbureted manifold has a 4150 flange to work with all mechanical secondary square bore carburetors. These intake manifolds are designed to accept most stock hardware and accessory brackets, but offer performance features like better plenum and runner geometry for improved charge airflow. The isolated design of the air/fuel passages helps to increase charge air density and performance.
The intake manifolds are designed for use with 289-347 cubic inch Small Block Ford engines with a 8.2" deck height.
- Carbureted Single Plane Intake Manifold for Small Block Ford 289-347
- Single plane design with isolated plenum for cooler charge air temperatures
- 4150 square bore mounting flange
- Power band: 2500-7500 RPM
- Height: front 5.58”, rear 6.40”
- Port size: 1.82” height, 1.04” width
- Extra material allows for porting to 2.00” height, 1.20” width
- Accessory ports under the carburetor in 1/8 NPT, 1/4 NPT and 3/8 NPT sizes
- MPN: 300-277
Specifications
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Brand
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Holley
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Part Number
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300-277
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Product Line
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Holley
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Style
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Single Plane
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Operating Range Low
|
2500 RPM
|
|
Operating Range High
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7500 RPM
|
|
Carburetor Quantity
|
1
|
|
Carburetor Flange
|
Square Bore
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|
Oval/Rectangle Port
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Rectangle
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|
Manifold front height
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5.58 in
|
|
Manifold rear height
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6.4 in
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|
Port Size Height
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1.82 in
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|
Port Height Width
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1.04 in
|
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Engine Deck
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8.2. in
|
|
Gaskets Included
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No
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|
Hardware Included
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No
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|
Cast/Fabricated
|
Cast
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1-Piece / 2-Piece
|
1-Piece
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|
Material
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Aluminum
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Color
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Natural
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Finish
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Natural
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Quantity
|
Each
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