DORMAN 674-100 Exhaust Manifold Llv Nos 019495741008

( Brand: Dorman ), ( Items Included: Gasket, Mounting Hardware ), ( Manufacturer Part Number: 674-100 ), ( Vintage Part: No ), ( Placement On Vehicle: Front ), ( Fuel Type: Gasoline ), ( Type: Exhaust Manifold ), ( Country/region Of Manufacture: China ), ( UPC: 019495741008 )

Review DORMAN Exhaust Manifold Chevy Gmc Llv Nos fits JIMMY BLAZER S10 1985–1993

The Dorman 674-100 Exhaust Manifold is an excellent replacement option for the exhaust system in Chevrolet S10, Jimmy, Blazer, and GMC trucks from the model years 1985 to 1993. This manifold is designed to fit LLV (Long Length Vans) and NOS (Natural Gas Vehicles) models as well.

This replacement exhaust manifold is made from high-quality materials, ensuring durability and reliability. It is engineered to meet or exceed the original equipment specifications of the OEM part. The casting is made from gray iron, which provides strength and resistance to thermal shock. The exhaust ports on the manifold are designed to optimize exhaust flow, improving engine performance and efficiency.

The Dorman 674-100 Exhaust Manifold features a factory-style, welded-on exhaust flange for a secure and leak-free connection to the exhaust system. It also comes with new gaskets for easy installation. The manifold is pre-drilled for the original exhaust system hardware, making it easy to bolt on and get back on the road.

- 2.2L I4

- 2.5L I4

- 2.8L I4

- 2.9L I6

- 4.3L V6

By choosing the Dorman 674-100 Exhaust Manifold, you can replace a worn-out or damaged manifold with a new, high-quality part that will provide reliable performance and extend the life of your vehicle's exhaust system. This part is backed by Dorman's limited lifetime warranty, ensuring your peace of mind and satisfaction with your purchase.

Dorman 674-100 Exhaust Manifold for Chevy S10, Jimmy, Blazer, and GMC 1985-1993: A Comprehensive Analysis

The Dorman 674-100 exhaust manifold is a replacement part specifically designed for Chevrolet S10, Jimmy, Blazer, and GMC trucks of the 1985-1993 model years. This component is essential for proper exhaust system function, and its failure can lead to various engine performance issues. In this analysis, we will discuss the key features, advantages, and potential drawbacks of this exhaust manifold.

1. OE-style design: The Dorman 674-100 exhaust manifold is engineered to fit, function, and perform like the original equipment part.

2. High-quality materials: The manifold is manufactured from cast iron, ensuring durability and resistance to thermal shock.

3. Precise fitment: The part comes with gaskets and hardware to ensure a secure and leak-free installation.

1. Improved engine performance: A new exhaust manifold can help restore engine power and efficiency, resulting in better overall performance.

2. Reduced emissions: A leaking or damaged exhaust manifold can cause increased emissions, making this replacement a worthwhile investment for those concerned about environmental impact.

3. Cost-effective solution: Compared to dealing with the complexity and cost of an OEM replacement, the Dorman 674-100 offers a more affordable alternative.

1. Possible need for additional parts: Depending on the condition of the existing components, there might be a need for additional parts such as new exhaust gaskets or catalytic converters during installation.

2. Welding required for some applications: In certain cases, the exhaust manifold may need to be welded to the engine or header to ensure a proper seal, adding to the installation complexity.

The Dorman 674-100 exhaust manifold is an excellent choice for those seeking a reliable, cost-effective solution to restore their Chevy S10, Jimmy, Blazer, or GMC 1985-1993's exhaust system function. With its OE-style design, high-quality materials, and precise fitment, this replacement part offers significant improvements in engine performance and reduced emissions. However, potential drawbacks such as the need for additional parts and welding might add to the installation process complexity. Ultimately, the decision to invest in the Dorman 674-100 exhaust manifold should be based on an assessment of the existing exhaust system condition and the vehicle owner's priorities and resources.

If you are experiencing issues with your exhaust system or simply looking to prevent potential problems, the Dorman 674-100 exhaust manifold is a solid recommendation. Its cost-effective price point, OE-style design, and high-quality materials make it a worthwhile investment for those seeking to restore their vehicle's exhaust system function. However, it is crucial to consider the potential need for additional parts and welding during installation, ensuring you have the necessary resources and expertise to complete the project successfully.

part # 674100 prices

• $181.23-$191.95

specifications maniheader:

• for models: S10, Jimmy, Blazer
• for makes: Chevy, Gmc
• for years: 1985-1993
• brand: Dorman
• items included: Gasket, Mounting Hardware
• manufacturer part number: 674-100
• vintage part: No
• placement on vehicle: Front
• fuel type: Gasoline
• type: Exhaust Manifold
• country/region of manufacture: China
• upc: 019495741008

shipping maniheader:

• carrier: USPS
• type: Fixed
• class: Standard
• transit: 5-10 Days
• cost: $0.00
• service: USPS Ground Advantage

returns maniheader:

• policy: No Returns

general maniheader:

• condition: New other see details
• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers

payments maniheader:

• wallet: Google-pay
• other
• credit card: Mastercard

offer maniheader:

• options: Ship-to-home
• sold: 0
• started: August 15, 2025
• availability: In Stock
• quantity: 1

seller maniheader:

• # reviews: 3386
• rating: 100.0%

Dorman 674-100 Is Similar To:

• Dorman 674-746 Exhaust Manifold (52.3% similar) $99.00–$179.95. (September 19th, 2024)
• Dorman 53030932 99-04 Jeep Grand Cherokee Exhaust Manifolds Oem Mopar Left And Right Pair (42.4% similar) $44.99–$230.44. (October 15th, 2024)
• Dorman 674-782 Passenger Side Exhaust Manifold For Select Ford Models (48.3% similar) $458.07–$517.60. (November 21st, 2024)
• Dorman - Oe Solutions 674-128-ad Catalytic Converter With Integrated Exhaust Manifold For 2011-2012 Kia Optima Hy (38.1% similar) $797.98–$1128.04. (December 1st, 2024)
• Dorman 674-379 Exhaust Manifold (52.3% similar) $110.52–$111.95. (December 10th, 2024)
• Dorman 674-115 Exhaust Manifolds Driver Left Side For F150 Truck Hand F-150 (51.7% similar) $75.00–$94.85. (December 17th, 2024)
• Dorman - Oe Solutions 674-300 Exhaust Manifold With Integrated Catalytic Converter (49.4% similar) $578.72–$725.27. (December 18th, 2024)
• Dorman - Oe Solutions 674-196 For Jeep Grand Cherokee Comanche Wrangler Exhaust Manifold Tcp (36.9% similar) $255.79–$288.99. (December 20th, 2024)
• Dorman - Champ 674-165 Exhaust Manifolds (51.7% similar) $95.67–$163.80. (December 21st, 2024)
• Dorman 673-831 Manifold Converter Carb Compliant (45.2% similar) $175.00–$459.00. (December 25th, 2024)
• Dorman 673-930 Manifold Converter Carb Compliant (45.2% similar) $644.18–$1229.91. (December 25th, 2024)