Exhaust Manifold set for Mercruiser Engines: 454/7.4L and  502/8.2L

    Manifolds replace Replaces Mercuiser 807078T10, 807078T09, 807078A6, 807078A4, 807078A2, and 89011A8

Risers replace 44354, 807914, 807988

This manifold and riser package is an exact replacement for the stock manifolds with all mounting bosses and holes drilled and tapped for easy installation.  Left and Right are the same

Includes: Two manifolds, Two Risers/Elbows and gaskets!