3989043 Lh Exh Manifold Air 71-74 307/350/400 Pass/camaro/nova/chevelle

( Brand: General Motors ), ( Type: Exhaust Manifold ), ( Manufacturer Part Number: 3989043 ), ( Placement On Vehicle: Left )

Review GENERAL MOTORS Lh Exh Manifold 71-74 307/350/400 Pass/camaro/nova/chevelle Without Air Oem fits CAMARO NOVA CHEVELLE 307 350 400

The 3989043 LH Exhaust Manifold is a high-performance aftermarket replacement part specifically designed for vehicles with the small-block Chevy engines from the years 1971 to 1974. Compatible engines include the 307, 350, and 400 cubic inch variants that were used in iconic American muscle cars like Chevelle, Camaro, and Nova. This manifold is an upgrade from the factory original, providing noteworthy benefits for enthusiasts seeking enhanced power and improved performance.

This exhaust manifold, manufactured to strict quality standards, features a precision-machined design for a perfectly fitted replacement. Constructed from durable investment cast material, it guarantees superior strength and resistance to thermal stress, ensuring a long service life even under the most demanding conditions.

Among the manifold's most significant advantages are its pass design and improved cambered ports. This design allows for an increased flow rate, which translates to smoother exhaust gases expulsion. The cambered ports also optimize fuel-air mixture combustion for better efficiency, ultimately contributing to improved horsepower and torque figures.

The 3989043 LH Exhaust Manifold also boasts optimized exhaust gas velocity, producing a fast and unrestricted flow for performance gains. Additionally, it is designed to provide exceptional fit and finish, ensuring a seamless upgrade process and easy installation.

Furthermore, this aftermarket exhaust manifold minimizes heat transfer into the engine compartment. This reduction in under-hood heat not only enhances driver comfort and safety but also keeps stored combustibles safer.

Perfectly suited for serious performance enthusiasts and restorers, this 3989043 LH Exhaust Manifold offers an excellent power boost, responsiveness, and an unmistakable engine note. It's a must-have for anyone seeking to fine-tune their classic muscle car and join the community of like-minded individuals who take pride in their powerful and iconic American machines.

Pros and Cons of Buying a 3989043 LH Exhaust Manifold for 1971-1974 Chevrolet 307, 350, 400, Camaro, Nova, or Chevelle

If you're looking to upgrade or repair the exhaust system on your classic Chevrolet vehicle from the 1971 to 1974 model year, you might be considering the purchase of a new 3989043 LH exhaust manifold. This part can be difficult to find, especially if your vehicle has a specific engine size or application. In this article, we'll discuss the pros and cons of buying a 3989043 LH exhaust manifold to help you make an informed decision.

1. Improved Performance: Installing a new 3989043 LH exhaust manifold can lead to improved engine performance. A damaged or worn exhaust manifold can cause various issues, such as poor gas mileage, decreased horsepower, and rough idling. A new manifold can help restore the engine to its optimal performance level.

2. Durability: A new exhaust manifold is later modeled and engineered to last longer than its OEM (original equipment manufacturer) counterpart. It is often made of stronger materials and is designed to withstand the rigors of high-performance applications.

3. Availability: Aftermarket manufacturers often produce exhaust manifolds in larger quantities, making them more readily available than original components. This can save you time and hassle, as you won't have to search for a potentially rare OEM part.

1. Cost: Aftermarket exhaust manifolds can be more expensive than their OEM counterparts. The exact cost will depend on the specific make, model, and engine size, as well as the manufacturer and brand of the aftermarket part.

2. Fitment: While aftermarket exhaust manifolds are designed to fit most applications, there can still be variability in fitment. Ensure the manifold you choose is compatible with your specific engine size, vehicle year, and application before making a purchase.

3. Quality: The quality of aftermarket exhaust manifolds can vary greatly between different manufacturers. Be sure to research and purchase from a reputable manufacturer to ensure you're getting a high-quality product.

When considering the purchase of a 3989043 LH exhaust manifold for your classic Chevrolet vehicle from the 1971 to 1974 model year, weigh the pros and cons carefully. While there are trade-offs, such as cost and potential fitment concerns, the benefits including improved performance and durability can often make the investment worthwhile. Just be sure to choose a reputable and trusted manufacturer and verify the part's compatibility with your specific engine size, vehicle year, and application.

If you decide to purchase an aftermarket 3989043 LH exhaust manifold, we recommend calling or contacting the manufacturer for any additional information or clarity regarding fitment and compatibility. Additionally, consider checking reviews from other enthusiasts who have purchased the same part to gauge its performance and overall quality. Choosing a reputable brand with a proven track record can help mitigate any potential concerns and ensure a successful installation.

part # 3989043 prices

• $60.00-$119.99

specifications maniheader:

• for models: 307, 350, 400, Camaro, Nova, Chevelle
• brand: General Motors
• type: Exhaust Manifold
• manufacturer part number: 3989043
• placement on vehicle: Left

shipping maniheader:

• class: Standard
• transit: 5-12 Days
• cost: $0.00
• carrier: USPS
• type: Calculated
• service: USPS Ground Advantage

general maniheader:

• condition: Used
• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers

returns maniheader:

• policy: No Returns

payments maniheader:

• other
• wallet: Paypal
• credit card: Mastercard

seller maniheader:

• # reviews: 2225
• rating: 100.0%

offer maniheader:

• availability: In Stock
• quantity: 1
• started: February 8, 2025
• sold: 0
• best offers: True
• options: Ship-to-home

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