Dorman 674-503 Exhaust Manifold - Right

Dorman 674-503 Exhaust Manifold

This Dorman exhaust manifold is engineered to match the original fit and function on specified vehicles. Built from cast iron with a natural finish and square port shape, it is a direct repair option for the right side of select Chevrolet Corvette applications.

• Cast iron construction for durable exhaust service
• Natural finish with square port shape
• Includes gasket and downpipe flange hardware for a complete repair
• Mounting hardware included
• Direct replacement for select right-side applications

Fitment Details

Compatible with 1962-1963 Chevrolet Corvette, right. Compatible with 1964-1965 Chevrolet Corvette, right, w/Left Side Square Bracket. This Dorman 674-503 exhaust manifold is a fitment-based replacement for Chevrolet Corvette exhaust repairs where the original manifold has cracked, warped, or leaked.

This part cross-references Nissens 101219 and 3814970 for the same application.

Common Repair Uses

• Exhaust manifold cracks that create ticking or exhaust noise
• Leaks at the manifold-to-cylinder-head sealing surface
• Broken or corroded downpipe connection points
• Heat-related exhaust odor or reduced exhaust sealing
• Failed original manifold on the right side of the engine

Installation Notes

Verify right-side placement and confirm the square port configuration before installation. Inspect the cylinder head surface, fasteners, and downpipe connection for damage or corrosion, and replace worn sealing surfaces during repair. Follow factory torque specifications and installation sequence for proper sealing on 1962-1965 Chevrolet Corvette applications.

Quality Assurance

Dorman manufactures this manifold to match the fit and function of the original part on specified vehicles. The package includes the manifold, gasket, flange, studs, nuts, washers, and lock washers needed for the repair.