Drive System Parts - OMC

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.

Interchanges/Replaces

Mallory

• 9-72202

OMC Stern Drive

• 984264

Mercruiser OEM V8 BBC 454/7.4L and 502/8.2L Exhaust Manifold and Riser Kit w/out Spacer

• Direct OEM Manufactured Replacement for Mercruiser Big Block Chevy 454/502 Manifolds and Risers
• Manifolds and 4" Risers Constructed from Cast Iron and painted with black corrosion resistant paint.
• Replaces Mercruiser #807078T08 and 89011A8 Manifolds
• Replaces Mercruiser #807988Q03, 807988A03 and 44354A3 Risers

Mercruiser OEM V8 BBC 454/7.4L and 502/8.2L Exhaust Manifold and Riser Kit w/ 3" Spacer

• Direct OEM Manufactured Replacement for Mercruiser Big Block Chevy 454/502 Manifolds and Risers
• Manifolds and 4" Risers Constructed from Cast Iron and painted with black corrosion resistant paint.
• Replaces Mercruiser #807078T08 and 89011A8 Manifolds
• Replaces Mercruiser #807988Q03, 807988A03 and 44354A3 Risers

Mercruiser OEM V8 BBC 454/7.4L and 502/8.2L Exhaust Manifold and Riser Kit w/ 6" Spacer

• Direct OEM Manufactured Replacement for Mercruiser Big Block Chevy 454/502 Manifolds and Risers
• Manifolds and 4" Risers Constructed from Cast Iron and painted with black corrosion resistant paint.
• Replaces Mercruiser #807078T08 and 89011A8 Manifolds
• Replaces Mercruiser #807988Q03, 807988A03 and 44354A3 Risers

Mercruiser OEM V8 SBC 305/5.0L and 350/5.7L Exhaust Manifold and Riser Kit w/out Spacer

• Direct OEM Manufactured Replacement for Mercruiser Small Block Chevy 305/350 Manifolds and Risers
• Manifolds and 4" Risers Constructed from Cast Iron and painted with black corrosion resistant paint.
• Replaces Mercruiser #860246A10 and 860246Q11 Manifolds
• Replaces Mercruiser #807988Q03, 807988A03 and 44354A3 Risers

Mercruiser OEM V8 SBC 305/5.0L and 350/5.7L Exhaust Manifold and Riser Kit w/ 3 " Spacer

• Direct OEM Manufactured Replacement for Mercruiser Small Block Chevy 305/350 Manifolds and Risers
• Manifolds and 4" Risers Constructed from Cast Iron and painted with black corrosion resistant paint.
• Replaces Mercruiser #860246A10 and 860246Q11 Manifolds
• Replaces Mercruiser #807988Q03, 807988A03 and 44354A3 Risers

Mercruiser OEM V8 SBC 305/5.0L and 350/5.7L Exhaust Manifold and Riser Kit w/ 6" Spacer

• Direct OEM Manufactured Replacement for Mercruiser Small Block Chevy 305/350 Manifolds and Risers
• Manifolds and 4" Risers Constructed from Cast Iron and painted with black corrosion resistant paint.
• Replaces Mercruiser #860246A10 and 860246Q11 Manifolds
• Replaces Mercruiser #807988Q03, 807988A03 and 44354A3 Risers

Mercruiser OEM V8 SBC 350 Dry Joint Exhaust Manifold and 14 Degree Riser Kit w/out Spacer

• Direct OEM Manufactured Replacement for Mercruiser Small Block Chevy 350 Dry Joint Manifolds and Risers
• Manifolds and 4" Risers Constructed from Cast Iron and painted with black corrosion resistant paint.
• Replaces Mercruiser #865735A02 and 864308T01 Manifolds
• Replaces Mercruiser #864591T02 Risers
• Fits 2002 and newer 350/377 engines with dry joint exhaust serial 0M317000 and up.
• Fits 2004 and newer 305, 350 and 377 engines with dry joint exhaust serial 0W310000 and up.

Mercruiser OEM V8 SBC 350 Dry Joint Exhaust Manifold and 7 Degree Riser Kit w/out Spacer

• Direct OEM Manufactured Replacement for Mercruiser Small Block Chevy 350 Dry Joint Manifolds and Risers
• Manifolds and 4" Risers Constructed from Cast Iron and painted with black corrosion resistant paint.
• Replaces Mercruiser #865735A02 and 864308T01 Manifolds
• Replaces Mercruiser #865735A02 Risers
• Fits 2002 and newer 350/377 engines with dry joint exhaust serial 0M317000 and up.
• Fits 2004 and newer 305, 350 and 377 engines with dry joint exhaust serial 0W310000 and up.

Stock Mercury Replacement BBC 454/7.4L and 502/8.1L Cast Iron Exhaust Kit w/ 6” Spacer
Mercury Big Block Chevy Exhaust Kit with 6 Inch Spacer. This kit has 3 Inch Elbow Kit used with 4" exhaust hose. For 1981 & Up.