PONTIAC 329-01238 Lower Intake Manifold Riviera 6-231

( Part Type: Intake Manifold ), ( Conditions Options: Efi, 3.8, Se ), ( Genuine Oem: Yes ), ( Ipn: 329-01238 ), ( Year: 1992 )

Review PONTIAC Intake Manifold 38l Lower Riviera fits 1991–1993

The Pontiac 329-01238 intake manifold is a crucial component of the engine air induction system for select Pontiac Riviera models from 1991 to 1993. This intake manifold, specifically the 6-231 38L lower unit, is designed to accommodate the 329 cubic inch V8 engine.

This intake manifold features a modern design, ensuring optimal engine performance and efficiency. It is meticulously crafted with precision engineered components, ensuring a perfect seal and efficient airflow. The manifold's design allows for a uniform distribution of air into the engine's combustion chambers, enhancing power and fuel economy.

The 329-01238 intake manifold is made from high-quality materials, such as aluminum, which is known for its strength and durability. The surface is finished with a smooth, polished coating that not only looks great but also helps to minimize air turbulence and improve airflow.

The intake ports on this manifold are engineered to provide an optimal angle for the incoming air, allowing it to enter the engine as efficiently as possible. The manifold also features integrated throttle bodies, which help to control the amount of air that enters the engine based on the driver's input, ensuring smooth and responsive acceleration.

The 329-01238 intake manifold is a direct replacement for the original part on select Pontiac Riviera models. It comes complete with all necessary hardware for installation, making it a hassle-free upgrade for enthusiasts looking to enhance their engine's performance.

In summary, the Pontiac 329-01238 intake manifold is a high-performance component designed to improve the air induction system of select Pontiac Riviera models. Its modern design, precision engineering, and high-quality materials make it an excellent choice for anyone looking to optimize their engine's performance and efficiency.

Pontiac 329-01238 Intake Manifold for 6-231 3800 Series Riviera (91-93): A Comprehensive Analysis

The Pontiac 329-01238 Intake Manifold is a crucial component of the 6-231 3800 series engine found in Riviera vehicles from 1991 to 1993. This analysis aims to provide an unbiased assessment of the benefits and drawbacks of purchasing this intake manifold.

1. Enhanced Performance: Upgrading to a newer intake manifold can result in improved engine performance, including increased horsepower and torque.

2. OEM Replacement: This intake manifold is an original equipment manufacturer (OEM) replacement part, ensuring a perfect fit and compatibility with other engine components.

3. Durability: As an OEM part, it is designed to meet the same high-quality standards as the original component, offering long-lasting durability.

1. Cost: The price of the Pontiac 329-01238 Intake Manifold may be higher than aftermarket alternatives, which could deter some buyers.

2. Availability: Depending on the supplier, availability of this OEM part may be limited, making it harder to find and source compared to aftermarket options.

3. Complex Installation: Installing an intake manifold can be a complex process, requiring specialized tools and mechanical expertise.

The Pontiac 329-01238 Intake Manifold offers several advantages, such as enhanced engine performance, OEM compatibility, and durability. However, these benefits come at a cost, which may be a deciding factor for some buyers. Additionally, its availability and complex installation process are important considerations. Ultimately, the decision to purchase this intake manifold depends on your budget, mechanical expertise, and priorities for your vehicle's performance.

If you prioritize high-performance and OEM compatibility, and have the necessary budget and expertise, then the Pontiac 329-01238 Intake Manifold is an excellent choice for your 6-231 3800 series Riviera. However, if cost is a major concern or you're unsure about the installation process, exploring aftermarket alternatives or seeking professional assistance may be worthwhile.

Details:

They are not reflective of the actual part or condition being sold. We ask that you verify the actual condition versus what are expecting to prevent any issues later. Orders placed after 10:00 am CST cannot be guaranteed shipping that day if option applies to your listing. Most carriers do not allow hand unloading.

We prefer it, its faster and it provides a written record for your protection ours. As well charges are based on dimensional weight, not actual weight. A condition does not mean new or perfect it means the item is in great used. Donor Vehicle model: TRANS SPT Year: 1992 Mileage: not available or unknown Stock Number: 051023 Notes: 4-92,EFI,3.8,SE Includes intake manifold only.

That is not the way this system was designed. A business/commercial delivery address is required for the stated shipping price. A telephone number is required. Common used part visual blemishes most likely present.

Visual flaws still may be present as the item is used. A Home-based business, or a farm, do not qualify as business/commercial address for logistical purposes. Residential Limited Access fees range from $50-$100. Some clean up may be necessary.

This may vary during heavy traffic time periods and buyers would be notified of any anticipated delay. Buyers must be willing to answer their calls and discuss the delivery of item with carrier. If an RMA# is not provided there may be a delay in processing the return. Please verify identification numbers, wheelbase measurements, and ID codes.

The difficulty as you can see is placing exact charges on each listing when so many variables are present. This system was designed as a benchmark with certain understandings. Upper and lower intakes are listed sold separately. Lift gate Fees range from $50-$100.

Specific item information and warranty is posted on the listing. Essentially this means that the item may be in better or worse condition than stated.

part #: 329-01238 prices

• $110.00-$359.00

specifications inputmanifolds:

• for makes: Pontiac
• for years: 1991-1993
• part type: Intake Manifold
• conditions options: Efi, 3.8, Se
• genuine oem: Yes
• interchange part number: 329-01238
• year: 1992

general inputmanifolds:

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

shipping inputmanifolds:

• cost: $26.04
• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• type: Calculated
• transit: 3-6 Days
• class: Standard

seller inputmanifolds:

• # reviews: 9796
• rating: 99.8%
• city: Arena, Wisconsin

offer inputmanifolds:

• best offers: True
• started: March 13, 2026
• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 1

returns inputmanifolds:

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

payments inputmanifolds:

• wallet: Apple-pay
• credit card: Diners-club
• other

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