Exhaust Manifold
18-1957-2
Marine Power 0991-100
A Port & Starboard center rise with gaskets - most Marine Power GM 7.4 L - 8.2L, V8 big blocks & others.
Mercruiser- 807078A 6, 89011A8
For Mecruiser Applications See Manifold 807078T10
Product Code: 47-19572