Dorman 674-570 Exhaust Manifold - Left

Durable Cast Iron Exhaust Manifold for Chevrolet and GMC Vehicles

The Dorman 674-570 exhaust manifold is engineered to provide reliable exhaust flow for select Chevrolet, GMC, and Oldsmobile models. Constructed from cast iron with a natural finish, this exhaust manifold is designed to withstand high temperatures and deliver consistent performance.

• Material: Heavy-duty cast iron for durability and heat resistance
• Color: Natural cast iron finish
• Port Shape: Square ports for optimal exhaust flow
• Includes mounting hardware: 5 studs, 5 nuts, and flange
• Comes with exhaust manifold gasket and flange for proper sealing
• Heat shield included to protect surrounding components
• Grade Type: Regular quality standard

Product Details and Specifications

This Dorman exhaust manifold (part number 674-570) is designed specifically for Chevrolet Blazer, GMC Jimmy, Oldsmobile Bravada, Chevrolet S10, and GMC Sonoma models. The cast iron construction ensures long-lasting durability under extreme engine conditions. The square port shape matches OEM specifications to maintain proper exhaust gas flow and reduce backpressure. Included mounting hardware and gasket simplify installation and ensure a secure, leak-free fit. The heat shield protects adjacent engine components from excessive heat, helping maintain overall engine bay integrity.

Compatible Vehicles and Common Applications

This exhaust manifold is compatible with the following vehicles:

• Chevrolet Blazer
• GMC Jimmy
• Oldsmobile Bravada
• Chevrolet S10
• GMC Sonoma

It is commonly used to address issues such as:

• Exhaust leaks causing noise and reduced engine efficiency
• Cracked or warped manifolds due to heat stress
• Failed or missing exhaust gaskets leading to emissions problems
• Damaged heat shields causing heat damage to nearby components
• Loose or missing mounting hardware affecting manifold stability

Installation Notes and Tips

Installation of the Dorman 674-570 exhaust manifold includes all necessary hardware and gaskets for a complete replacement. It is recommended to inspect the exhaust ports and surrounding components for damage or corrosion before installation. Use proper torque specifications for mounting nuts and studs to avoid warping the manifold. The included heat shield should be securely fastened to protect engine components from heat exposure.

Quality Assurance and Warranty Information

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit, form, and function. The 674-570 part undergoes rigorous quality control to ensure durability and performance. This product includes a limited warranty against defects in materials and workmanship, providing confidence in its reliability for your Chevrolet, GMC, or Oldsmobile vehicle.