Mercruiser GM Small Block Exhaust Manifold | Sierra 18-1950-1

Port exhaust manifold fits Mercruiser GM 5.0L & 5.7L marine engines with end riser.

• Mercruiser log style exhaust manifold
• Direct replacement manifold fits Mercruiser GM V8 small block 305 and 350 cu. in. engines from 1977 to 1982 with end riser
• For Mercruiser 198, 228, 255, 260, and 898 model engines
• Port side
• Heavy duty cast iron
• Painted black
• Includes all gaskets, riser studs, and drain plugs
• Manifold mounting kit P/N 18-8548 – sold separately
• Replaces Mercruiser 77234A2, 77234A7
• Replaces Osco 7234B
• Replaces Sierra 18-1950