Chevy Big Block Carbureted Dual Plane Aluminum Intake Manifold - Polished

• Compatible with 1965-2000 standard-duty Chevy big block engines

• Features dual-plane design.

• Comes in black, polished, and satin finish.

TSP's dual-plane high-performance intake manifold for the big block Chevy is ideal for street performance applications, with a design that improves throttle response, as well as power and torque over a wide rpm range - idle to 6,000. It is cast from lightweight aluminum and features a low profile for ideal hood clearance. Additional provisions include dual distributor hold-downs, 4 corner water ports, and a choke block-off kit. Set up for spread bore carbs, this manifold comes with an adapter plate and gasket for use with square bore types.

What engines is this intake manifold compatible with?
This intake manifold is designed for 1965–2000 Chevrolet Big Block V8 engines with standard deck height, making it suitable for a wide range of street performance builds.

Will this intake fit a 454 Big Block Chevy?
Yes, this intake is compatible with common Big Block Chevy engines including 454 applications, as long as the engine uses standard deck height and oval port cylinder heads.

Is this intake compatible with both spread bore and square bore carburetors?
Yes, it is designed for spread bore carburetors but includes an adapter plate and gasket, allowing it to be used with square bore carburetors as well.

What RPM range is this intake designed for?
This dual-plane intake is optimized for an operating range from idle up to approximately 5,500 RPM, making it ideal for strong low-end torque and mid-range performance.

What kind of performance gains can I expect?
This intake is designed to improve throttle response and increase both horsepower and torque across a broad RPM range, especially in street-driven applications.

Is this intake better for street or race applications?
This manifold is best suited for street performance builds or mild street/strip setups where low-end torque and drivability are important, rather than high-RPM race-only applications.

What type of intake design is this?
This is a dual-plane intake manifold, which separates airflow into two planes to improve low-end torque and overall drivability compared to single-plane designs.

Does this intake have a low-profile design for hood clearance?
Yes, it features a low-profile design that helps maintain proper hood clearance in most applications.

What material is this intake made from?
It is constructed from lightweight aluminum, which improves heat dissipation and reduces overall engine weight.

Does this intake require any modifications to install?
In most cases, this intake installs as a direct replacement for factory-style Big Block Chevy intakes. Some modifications to heater lines, and temperature sender locations may need to be adjusted. Proper gasket matching and carburetor setup are recommended for best performance.

Are additional components required for installation?
You may need standard installation components such as intake gaskets, carburetor linkage adjustments, and potentially a carburetor adapter depending on your setup.

Will this intake improve throttle response on my Big Block Chevy?
Yes, the dual-plane design helps improve throttle response by increasing air velocity at lower RPMs, making it especially noticeable in street driving conditions.

Is this a good upgrade over a stock intake manifold?
Yes, compared to factory intakes, this manifold provides improved airflow, better throttle response, and increased power across the usable RPM range.

Does the polished finish affect performance?
No, the polished finish is primarily cosmetic and does not change performance. It provides a clean, show-quality appearance while maintaining the same functionality as other finishes.

How do I maintain the polished finish?
To keep the polished finish looking its best, regular cleaning and occasional polishing are recommended to prevent oxidation and maintain shine.