SPEEDMASTER 1-147-099 Lowrise Intake Manifold 840136567011

( Brand: Speedmaster ), ( Part Type: Intake Manifold ), ( Manufacturer Part Number: 1-147-099 ), ( Return Notes: New, Unused Condition W/original Packaging ), ( UPC: 840136567011 )

Review SPEEDMASTER Oldsmobile Lowrise Intake Manifold Black fits 400 425 455

The Speedmaster 1-147-099 Oldsmobile 400 425 455 Low Rise Intake Manifold is a high-performance component designed to enhance the air intake system of Oldsmobile engines with a displacement of 400, 425, and 455 cubic inches. This intake manifold, manufactured by Holley Performance Products, is a low-rise design, making it an excellent choice for applications where clearance is a concern.

This Holley intake manifold features a unique design that utilizes a large plenum volume to ensure optimal fuel distribution and air flow. The runners are designed to provide excellent velocity and flow characteristics, resulting in improved engine performance. The manifold is also equipped with Holley's famous UV-coated aluminum finish, which not only looks great but also provides an additional layer of protection against corrosion.

The manifold comes with a set of 100-percent Holley 4160-series vacuum secondary carburetor mounting pads, making installation a breeze. The carburetor mounting pads are adjustable, allowing for precise carburetor positioning to optimize performance and idle quality. Additionally, the manifold includes provisions for mounting accessory brackets, power brakes, and power steering systems, making it a versatile component for various applications.

This Oldsmobile intake manifold is CNC-machined from high-quality aluminum, ensuring exceptional accuracy and consistency. The manifold also undergoes rigorous testing to ensure it meets Holley's stringent quality standards. The gasket surfaces are flat and true, ensuring a perfect seal between the intake manifold and the engine head.

In summary, the Speedmaster 1-147-099 Oldsmobile 400 425 455 Low Rise Intake Manifold by Holley Performance Products is a high-performance, versatile component that delivers optimal air intake flow and fuel distribution for Oldsmobile engines. Its low-rise design, large plenum volume, and adjustable carburetor mounting pads make it an excellent choice for performance enthusiasts seeking to enhance their Oldsmobile's engine output.

The Oldsmobile 400 425 455 engine is known for its power and performance, and the Speedmaster 1-147-099 low-rise intake manifold is a popular aftermarket option for those looking to enhance the engine's airflow and overall performance. Here are some pros and cons of buying this intake manifold:

1. Increased Power: The low-rise design of the Speedmaster intake manifold allows for better airflow and increased horsepower and torque.

2. Improved Throttle Response: The intake manifold's design also leads to improved throttle response, making the engine more responsive and quicker to accelerate.

3. Better Fuel Economy: The increased airflow and improved combustion efficiency can lead to better fuel economy, saving you money in the long run.

4. Easy Installation: The intake manifold is relatively easy to install, with most people able to do it in their garage with basic tools.

5. Durable: The Speedmaster intake manifold is made of high-quality materials and is designed to last, making it a worthwhile investment for those looking for long-term performance gains.

1. Cost: The Speedmaster 1-147-099 intake manifold can be quite expensive, especially compared to stock intake manifolds.

2. Requires Tuning: Installing the intake manifold may require some additional tuning to ensure the engine runs smoothly and efficiently.

3. Compatibility: The intake manifold may not be compatible with all Oldsmobile 400 engines, so it's essential to check the compatibility before making a purchase.

The Speedmaster 1-147-099 low-rise intake manifold is an excellent investment for those looking to enhance the performance of their Oldsmobile 400 engine. The increased power, improved throttle response, better fuel economy, and easy installation make it a popular choice among enthusiasts. However, the cost and the need for tuning and compatibility checks are important factors to consider before making a purchase.

If you are serious about enhancing the performance of your Oldsmobile 400 engine and have the budget for it, the Speedmaster 1-147-099 low-rise intake manifold is an excellent investment. However, if you are on a tight budget or unsure about the compatibility, it may be worth considering other options or doing more research before making a decision.

Details:

Manufacturer: Speedmaster. Items must be New, Unused, Not Installed, in the Original Packaging and able to resold. Lowest profile manifold and street legal on pollution controlled vehicles Great top end power without sacrificing bottom torque Cast from steel molds for a tighter grain Pressure tested for maximum performance.

Condition: New. It is set up to accept a spread bore carb. MPN: 1-147-099. Oldsmobile 400 425 455 LowRise Intake Manifold Black The Speedmaster Manifolds are our lowest profile manifold and is also the only one that street legal on pollution controlled vehicles.

Brand: Speedmaster. Domestic Shipping: The shipping cost on this listing or the Free Shipping is for lower 48 States.

part #: 1147099 prices

• $436.10-$459.00

specifications inputmanifolds:

• for models: 400, 425, 455
• for makes: Oldsmobile
• brand: Speedmaster
• part type: Intake Manifold
• manufacturer part number: 1-147-099
• return notes: New, Unused Condition W/original Packaging
• upc: 840136567011

shipping inputmanifolds:

• class: Expedited
• transit: 2-6 Days
• cost: $0.00
• type: Fixed
• service: Expedited

offer inputmanifolds:

• started: June 10, 2026
• sold: 0
• options: Ship-to-home
• availability: In Stock

general inputmanifolds:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Intake Manifolds

payments inputmanifolds:

• wallet: Paypal
• other
• credit card: Discover

returns inputmanifolds:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

seller inputmanifolds:

• city: Grant, Michigan
• # reviews: 182757
• rating: 99.5%

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