Mercruiser Big Block Chevy, 7.4L, 454/502 Exhaust Manifold 807078T08 

Mercruiser Big Block Chevy Exhaust Manifold Kit 454/502 89011A8 / 807078T08

• Direct Replacement for Mercruiser Big Block Chevy 454/502 Manifold
• Manifold Constructed from Cast Iron and painted with black corrosion resistant paint.
• Individual Runners for Improved Performance over Stock Manifold
• Replaces Mercruiser #807078T10, 80707T08 and 89011A8, 807078A6 Manifolds.
• Can use with 4" or 3" Riser
• Includes Gaskets
• 3-Year Warranty
• Sold Each.