Aluminum Air Gap Single Plane Intake Manifold for Big Block Chevy V8 396-454 | SPELAB

Aluminum Air Gap Single Plane Intake Manifold for Big Block Chevy V8 396-454 | SPELAB

These Hurricane intake manifolds are one of Professional Products' very most popular race manifolds. If you are looking for the utmost in performance for the very least amount of cost, then these manifolds are for you! The base Hurricanes are terrific manifolds for budget engines such as claimer motors.

Specifications:

Engine: 396, 402, 427, 454

Intake Style:Single plane

RPM Range:3000-7500+ RPM

EGR or Non-EGR: 

Material: Aluminum

Finish:Satin

Includes Gaskets: No

Requires Aftermarket Fuel Rails: No

Intake Port  Dimensions：2.05" x   1.82" 

Manifold  Height：5.87" 

Carburetor or Throttle Body Flange: 4150 Square Bore Carb Base Flange

Cylinder Head Type: Oval Port

Engine Make/Size: Chevy Big Block (396-454)

Four corner water ports, dual distributor hold-downs and nitrous bosses

The air gap design allows air to flow under the plenum to prevent heat transfer from the engine, resulting in more horsepower

Best on engines with displacement in the 396 to 454 range producing from 600 to 700 horsepower

Package including:

1 X Aluminum Intake Manifold (No adapters include)

As Shown in the Picture above.

Fitment:

For Big Block Chevy V8 396-454

If you want to know whether the model is suitable, you can consult us

Q1: How does the single-plane intake manifold design affect engine performance?
A1:
The single-plane design of the SPELAB Air Gap Intake Manifold enhances high RPM performance by allowing for better airflow at higher engine speeds. It provides increased air/fuel mixture velocity, which helps boost power at 3,000-7,500+ RPM. This design is particularly beneficial for racing engines or high-performance applications where top-end power is prioritized.

Q2: Do I need to upgrade my fuel system when installing the SPELAB intake manifold?
A2:
No, the SPELAB Aluminum Air Gap Single Plane Intake Manifold does not require aftermarket fuel rails for installation. It is designed to work with standard fuel systems used in most 396-454 Chevy Big Block engines. However, ensure that your existing fuel system is properly sized to support the increased airflow and fuel requirements of a high-performance intake manifold.

Q3: What is the benefit of the four corner water ports on the intake manifold?
A3:
The four corner water ports on the SPELAB Aluminum Air Gap Intake Manifold help maintain even cylinder head temperatures by providing additional cooling. These ports ensure better distribution of coolant throughout the manifold, preventing hot spots that could lead to engine knock or reduced performance. This feature is particularly important for racing applications where engine temperature control is crucial for maintaining maximum power output.

Q4: How important is manifold height in choosing the right intake for my engine?
A4:
The manifold height of the SPELAB Aluminum Air Gap Single Plane Intake Manifold is 5.87 inches, which is relatively low compared to other performance manifolds. This provides adequate hood clearance for most street and race applications. However, it's important to verify that your engine bay can accommodate this height, particularly in cars with limited clearance under the hood.

Q5: What type of engines is this intake manifold best suited for?
A5:
The SPELAB Aluminum Air Gap Single Plane Intake Manifold is designed for Big Block Chevy V8 engines in the 396-454 cubic inch range. It is best suited for performance builds that produce 600-700 horsepower. This manifold is ideal for high-performance applications, such as racing or street performance engines where increased airflow and top-end power are critical.