GLM

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.

Stock Mercruiser Replacement Small Block Chevy 5.0/5.7L 305/350 Cast Iron Dry Joint 7 Degree Riser. This is a dry-joint style replacement riser.  Sold Each. Replaces 864309T02.

Stock Mercruiser Replacement Small Block Chevy 5.0/5.7L 305/350 Cast Iron Dry Joint Alternative Manifold / Riser Kit. This kit will replace a dry-joint style factory Mercruiser Exhaust to a more cost effective original style Wet-Joint exhaust. NOTE: This is a single manifold/riser package. 2 Kits would be needed for one engine.

• One Manifold and One Riser.
• Constructed from Heavy Duty Cast Iron
• Individual Runners for Improved Performance over Stock Manifolds
• 4 inch, Standard Risers
• Includes Bolts and Gaskets
  
• 3 inch spacer
  

Stock Mercruiser Replacement Small Block Chevy 5.0/5.7L 305/350 Cast Iron Dry Joint Manifold. This is a dry-joint style replacement system. Replaces MerCruiser part number 865735A02. Sold Each.

Stock Mercruiser Replacement Small Block Chevy 5.0/5.7L 305/350 Cast Iron Dry Joint Manifold / 14 Degree Riser Kit. This is a dry-joint style replacement system.

Stock Mercruiser Replacement Small Block Chevy 5.0/5.7L 305/350 Cast Iron Dry Joint Manifold / 7 Degree Riser Kit. This is a dry-joint style replacement system.

Mercruiser V8 Small Block Chevy (SBC), 305/350, 5.0/5.7L Complete Exhaust System w/ 6” Spacer, 4" Riser

Includes gaskets for both freshwater and raw water cooling. Replaces factory Mercruiser OEM Part Numbers:

Mercruiser V6 Exhaust Manifold and 3" Riser Kit
GM V6 Without Spacer 3in Elbow Kit

Mercruiser V6 Exhaust Manifold and 3" Riser and 3" Spacer Complete Conversion Kit
GM V6 With 3in Spacer, 3in Elbow Kit

Mercruiser V6 Exhaust Manifold and 3" Riser Kit with 6" Spacer Conversion Kit
GM V6 with 6in Spacer, 3in Elbow Kit

Mercruiser V6 Exhaust Manifold and 4" Riser Kit with 3" Spacer Conversion Kit
GM V6 with 3in Spacer, 4in Elbow Kit. Studs shown in picture are NOT INCLUDED.

Mercruiser V6 Exhaust Manifold and 4" Riser Kit with 6" Spacer

GM V6 with 6in Spacer, 4in Elbow Kit

Exhaust Manifold Assembly (Iron Casting) replaces MerCruiser part # 99746A17
V6 / V6 Dry Joint Replacement Exhaust Manifold. 3In / 4in Riser.

MerCruiser V6 Rotor Assembly replaces MerCruiser part # 13524A6

Used with Distributor Assembly – Thunderbolt IV & V

Kit Contains:

MerCruiser V8 Rotor Assembly replaces MerCruiser part #13524T1 and #13524A5

Used with Distributor Assembly – Thunderbolt IV & V

Kit Contains:

Mercruiser V8 Small Block Chevy (SBC), 305/350, 5.0/5.7L Complete Exhaust System w/ 3” Spacer, 4" Riser

Includes gaskets for both freshwater and raw water cooling. Replaces factory Mercruiser OEM Part Numbers:

Mercruiser V8 Small Block Chevy (SBC), 305/350, 5.0/5.7L Complete Exhaust System w/ 6” Spacer, 3" Hose Riser

Includes gaskets for both freshwater and raw water cooling. Replaces factory Mercruiser OEM Part Numbers:

Mercury 3" and 4" Restricted Flow Riser/Elbow Gasket replaces MerCruiser part # 27-860233

Exhaust Elbow Gaskets have side leakage-proof treatment and sticking proof treatment.

• Temperature Limit: 1112 F
• Thickness: 1/16 Inch
• Density of Sheet:1.309 / cm3
• Compressibility: 15-35%
• Recovery: 20% Min.
• Bolt Holes measure 3-7/16" center to center lengthwise and 3-1/16 center to center width wise. 
• Restricted water flow.

Mercury 3" and 4" Open Riser/Elbow Gasket replaces MerCruiser part # 27-863726

Exhaust Riser/Elbow Gaskets have side leakage-proof treatment and sticking proof treatment.

• Fits 1983-2002 V6 and V8, 3" or 4" riser.
• Temperature Limit: 1112 F
• Thickness: 1/16 Inch
• Density of Sheet:1.309 / cm3
• Compressibility: 15-35%
• Recovery: 20% Min.
• Bolt Holes measure 3-7/16" center to center lengthwise and 3-1/16 center to center width wise. 
• Open gasket for standard cooling riser.