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Dorman 674-501 Exhaust Manifold - Left or Right
Durable Exhaust Manifold for Chevrolet Corvette
The Dorman 674-501 exhaust manifold is engineered to provide reliable exhaust flow management for Chevrolet Corvette models. Crafted from cast iron with a natural finish, this exhaust manifold is designed to withstand high temperatures and deliver consistent performance.
Key Features of the Dorman 674-501 Exhaust Manifold
- Constructed from durable cast iron material for long-lasting strength
- Natural color finish that resists corrosion and wear
- Square port shape for optimized exhaust flow
- Includes exhaust manifold gasket and flange gasket for proper sealing
- Comes with six studs to ensure secure mounting
- Grade type classified as regular for standard performance applications
Detailed Description
This exhaust manifold is specifically designed for Chevrolet Corvette vehicles, ensuring compatibility and proper fitment. The cast iron construction offers excellent heat resistance and durability under the demanding conditions of engine exhaust systems. The square port shape helps maintain efficient exhaust gas flow, which can contribute to engine performance and emissions control. The package includes essential gaskets and mounting studs, facilitating a complete replacement without the need for additional parts.
Common Applications and Issues Addressed
- Replacement of cracked or warped exhaust manifolds causing exhaust leaks
- Restoring proper exhaust flow to improve engine efficiency
- Eliminating exhaust manifold gasket leaks that lead to noise and emissions problems
- Addressing mounting hardware wear or damage for secure installation
- Maintaining emissions compliance by ensuring a sealed exhaust system
Installation Notes and Tips
When installing the Dorman 674-501 exhaust manifold on a Chevrolet Corvette, ensure all old gasket material is thoroughly cleaned from the mounting surfaces. Use the included manifold and flange gaskets to achieve a proper seal. Tighten the six included studs evenly in a crisscross pattern to avoid warping the manifold. It is recommended to torque the studs to manufacturer specifications for optimal performance and leak prevention.
Quality Assurance and Warranty
Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit and function. The 674-501 part number undergoes rigorous quality control to ensure durability and reliability. While specific warranty details are not provided here, Dorman typically offers limited warranties covering defects in materials and workmanship.
| Brand | Dorman |
| Part Number | 674-501 |
| Material | Cast iron |
| Color | Natural |
| Port Shape | Square |
| Mounting Hardware Included | Yes |
| Grade Type | Regular |
| Gasket Or Seal Included | Yes |
| Heat Shield Included | No |
| Package Contents | Exhaust manifold; 1 manifold gasket; 1 flange gasket ; 6 studs; 3 |
This part fits 31 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1980 | Chevrolet | Corvette | 5.7L | V8 | Left | |
| 1980 | Chevrolet | Corvette | 5.7L | V8 | Right | |
| 1979 | Chevrolet | Corvette | 5.7L | V8 | Left | |
| 1979 | Chevrolet | Corvette | 5.7L | V8 | Right | |
| 1978 | Chevrolet | Corvette | Left | |||
| 1978 | Chevrolet | Corvette | Right | |||
| 1977 | Chevrolet | Corvette | Left | |||
| 1977 | Chevrolet | Corvette | Right | |||
| 1976 | Chevrolet | Corvette | Left | |||
| 1976 | Chevrolet | Corvette | Right | |||
| 1975 | Chevrolet | Corvette | Left | |||
| 1975 | Chevrolet | Corvette | Right | |||
| 1974 | Chevrolet | Corvette | 5.7L | V8 | Left | |
| 1974 | Chevrolet | Corvette | 5.7L | V8 | Right | |
| 1973 | Chevrolet | Corvette | 5.7L | V8 | Left | |
| 1973 | Chevrolet | Corvette | 5.7L | V8 | Right | |
| 1972 | Chevrolet | Corvette | 5.7L | V8 | Left | |
| 1972 | Chevrolet | Corvette | 5.7L | V8 | Right | |
| 1971 | Chevrolet | Corvette | 5.7L | V8 | Right | wo/Bracket |
| 1970 | Chevrolet | Corvette | 5.7L | V8 | Right | wo/Bracket |
| 1969 | Chevrolet | Corvette | 5.7L | V8 | Right | wo/Bracket |
| 1968 | Chevrolet | Corvette | 5.4L | V8 | Left | wo/Square Bracket |
| 1968 | Chevrolet | Corvette | 5.3L | V8 | Left | wo/Square Bracket |
| 1968 | Chevrolet | Corvette | 5.4L | V8 | Right | wo/Square Bracket |
| 1968 | Chevrolet | Corvette | 5.3L | V8 | Right | wo/Square Bracket |
| 1967 | Chevrolet | Corvette | 5.3L | V8 | Left | wo/Square Bracket |
| 1967 | Chevrolet | Corvette | 5.3L | V8 | Right | wo/Square Bracket |
| 1966 | Chevrolet | Corvette | 5.3L | V8 | Left | wo/Square Bracket |
| 1966 | Chevrolet | Corvette | 5.3L | V8 | Right | wo/Square Bracket |
| 1957 | Chevrolet | Corvette | Left | Exc. High Lift Cam | ||
| 1957 | Chevrolet | Corvette | Right | Exc. High Lift Cam |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.