Fits most Mercruiser early model  2.5L 153 cu. in and 3.0L 181 cu. in. engines

• Mercruiser 4 Cylinder Exhaust/Intake Manifold
• Fits most Mercruiser early model  2.5L 153 cu. in and 3.0L 181 cu. in. engines with Rochester carburetors with 5 bolt pattern from 1968-1982

Mercruiser Sterndrive Exhaust Manifold Exploded View Diagram and Parts Fits GM 4-Cylinder 181 cu. In. Models 120; 140; 2.5L &3.0L