Exhaust Elbow Gasket

Exhaust Elbow Gasket for GM Small Block V8 305-350 cu.in, GM Big Block V8,. For: GM Small Block V8 305-350 cu.in, GM Big Block V8. Use with Riser 18-1938, and Manifold Spacer 18-1984. Meets or exceeds manufacturer's recommended specifications. Backed by Sierra's limited lifetime warranty. For: GM Small Block V8 305-350 cu.in, GM Big Block V8 Use with Riser 18-1938, and Manifold Spacer 18-1984 Meets or exceeds manufacturer's recommended specifications Backed by Sierra's limited lifetime warranty