Home > Manifolds > Mercruiser Exhaust System > Mercruiser Manifolds / Risers / Sets > Manifold Kits > V8 Manifold Kits

Mercruiser Manifold Kit 4" Risers (V8 BB) Mercruiser Manifold Kit 4" Risers (V8 SB) Mercruiser Manifold Kit 3" Risers (V8 BB)
Manifold Kit w/4" Risers w/o Spacers (GLM)
- For Mercruiser GM V8 454 Big Block raw/fresh water cooling system
- Kit Contains:
  • 2 Exhaust Elbows GLM # 51140, OEM # 807988a2
  • 2 Exhaust Manifold Ass. GLM # 51240, OEM # 807078a6
  • 2 Elbow Gaskets GLM # 30240, OEM # 27-863724
  • 2 Manifold Gaskets GLM # 33760, OEM # 27-46820
  • 8 Screws GLM # 22381, OEM # 10-43749
  • 2 Hose Fitting w/Drain Plug Kit GLM # 13990, OEM # 22-806926a1
Exhaust Manifold Set with 4 "risers - w/o Spacer (GLM)
- For Mercruiser GM V8 Small Block raw/fresh water cooling system Replacement 350 Chevy Mercruiser Small Block Manifold kit with 4 inch riser
- Kit Contains:
  • 2 Exhaust Elbows GLM # 51140, OEM # 807988a2
  • 2 Exhaust Manifold Ass. GLM # 51230, OEM # 860246a10
  • 2 Elbow Gaskets GLM # 30240, OEM # 27-863724
  • 2 Manifold Gaskets GLM # 31100, OEM # 27-33395
  • 8 Screw-Steel Zinc Plated GLM # 22381, OEM # 10-43749
  • 2 Hose Fitting w/Drain Plug Kit GLM # 13990, OEM # 22-806926a1
Manifold Kit w/3" Riser w/o Spacers (GLM)
- For Mercruiser V8 Big Block raw/fresh water cooling systems
- Kit Contains:
  • 2 Exhaust Elbows GLM # 51110, OEM # 98504a3
  • 2 Exhaust Manifold Ass. GLM # 51240, OEM # 807078a6
  • 2 Elbow Gaskets GLM # 30240, OEM # 27-863724
  • 2 Manifold Gaskets GLM # 33760, OEM # 27-46820
  • 8 Flange Serrated Nuts GLM # 21248, OEM # 11-49838
  • 8 Studs GLM # 22391, OEM # 16-49545
  • 2 Hose Fitting W/Drain Plug Kit GLM # 13990, OEM # 22-806926a1
Mercruiser Manifold Kit 3" Risers (V6,V8 SB,V8 BB) Mercruiser Manifold Kit 3" Risers (V8 SB) Mercruiser Manifold Sets W/4" Risers (V8 BB)
Manifold Kit (GLM)
- With 3" risers (without spacers)
- For Mercruiser GM V6 raw/fresh water cooling system
- Set Includes: 2 Manifolds, 2 3" Risers, and Gaskets MODEL 175-205 - V6, GM 229/262 CID (1983 up to 0M SN# s) MODEL 200-320, V8 (S.B.), GM 305/350/377 CID (1983 up to 0M SN# s) MODEL 330-370, V8 (B.B.), GM 454/502 CID (1981 up to 0M SN# s)
- Kit Contains:
  • 2 Exhaust Elbow GLM # 51110, OEM # 98504a3
  • 2 Exhaust Manifold Ass. GLM # 51220, OEM # 99746a17
  • 2 Elbow Gasket GLM # 30240, OEM # 27-863724
  • 2 Manifold Gasket GLM # 32170, OEM # 27-99757
  • 8 Flange Serrated Nuts GLM # 21248, OEM # 11-49838
  • 8 Steel Stud GLM # 22391, OEM # 16-49545
  • 2 Hose Fitting w/Drain Plug Kit (2) GLM # 13990, OEM # 22-806926a1
Exhaust Manifold Kit with 3" Risers without Spacer (GLM)
- For Mercruiser GM V8 small block raw/fresh water cooling system
- Kit Contains:
  • 2 Exhaust Elbow GLM # 51110, OEM # 98504a3
  • 2 Exhaust Manifold Ass. GLM # 51230, OEM # 860246a10
  • 2 Elbow Gasket GLM # 30240, OEM # 27-863724
  • 2 Manifold Gasket GLM # 31100, OEM # 27-33395
  • 8 Studs GLM # 22391, OEM # 16-49545
  • 8 Flanged Serated Nuts GLM # 21248, OEM # 11-46335
  • 2 Drain Plug Kits GLM # 13990, OEM 22-806926a1
Manifold Sets w/4" Risers and 3" Spacers (GLM)
- For Mercruiser GM V8 454 Big Block Raw/Fresh Water Cooling System
- Kit Contains:
  • 2 Exhaust Elbows GLM # 51140, OEM # 807988a2
  • 2 Exhaust Manifold Ass. GLM # 51240, OEM # 807078a6
  • 2 Spacers 3" GLM # 50300, OEM # 807476a3
  • 2 Elbow Gaskets GLM # 30240, OEM # 27-863724
  • 2 Elbow Gaskets GLM # 32080, OEM # 27-863726
  • 2 Manifold Gaskets GLM # 3360, OEM # 27-46820
  • 8 Flange Serrated Nuts GLM # 21248, OEM # 11-49838
  • 8 Studs GLM # 22474, OEM # 16-11375
  • 2 Hose Fitting w/Drain Plug Kit GLM # 13990, OEM # 22-806926a1
Mercruiser Manifold Kit 4" Risers (V8 SB) Mercruiser Complete Manifold Set W/3" Spacer (V8 BB) Mercruiser Manifold Kit W/3" Spacer (V8 SB)
Manifold Kit w/4" Risers and 3" Spacer (GLM)
- For Mercruiser GM V8 small block raw/fresh water cooling system
- Kit Contains:
  • 2 Exhaust Elbows GLM # 51140, OEM # 807988a2
  • 2 Exhaust Manifold Ass. GLM # 51230, OEM # 860246a10
  • 2 Spacers 3" GLM # 50300, OEM # 807476a3
  • 2 Elbow Gaskets GLM # 30240, OEM # 27-863724
  • 2 Elbow Gaskets GLM # 32080, OEM # 27-863726
  • 2 Manifold Gaskets GLM # 31100, OEM # 27-33395
  • 8 Flange Serrated Nuts GLM # 21248, OEM # 11-49838
  • 8 Studs GLM # 22474, OEM # 16-11375
  • 2 Hose Fitting w/Drain Plug Kit GLM # 13990, OEM # 22-806926a1
Complete Manifold Set w/3" Spacer (GLM)
- For Mercruiser GM V8 (B.B.) COOLING SYSTEM 3 Inch
- Kit Contains:
  • 2 Exhaust Elbows GLM # 51110, OEM # 98504a3 E
  • 2 Exhaust Manifold Ass. GLM # 51240, OEM # 807078a6
  • 2 Spacers 3" GLM # 50300, OEM # 807476a3
  • 2 Elbow Gaskets GLM # 30240, OEM # 27-863724
  • 2 Elbow Gaskets GLM # 32080, OEM # 27-863726
  • 2 Manifold Gaskets GLM # 33760, OEM # 27-46820
  • 8 Flange Serrated Nuts GLM # 21248, OEM # 11-49838
  • 8 Studs GLM # 22481, OEM # 16-97520
  • 2 Hose Fitting w/Drain Plug Kit GLM # 13990, OEM # 22-806926a1
Manifold Kit w/3" Riser and Spacer (GLM)
- For Mercruiser V8 raw/fresh water cooling systems 3 Inch Elbow Kit
- Kit Contains:
  • 2 Exhaust Elbows GLM # 51110, OEM # 98504a3
  • 2 Exhaust Manifold Ass. GLM # 51230, OEM # 860246a10
  • 2 Spacers 3" GLM # 50300, OEM # 807476a3
  • 2 Elbow Gaskets GLM # 30240, OEM # 27-863724
  • 2 Elbow Gaskets GLM # 32080, OEM # 27-863726
  • 2 Manifold Gaskets GLM # 31100, OEM # 27-33395
  • 8 Flange Serrated Nuts GLM # 21248, OEM # 11-49838
  • 8 Studs GLM # 22481, OEM # 16-97520
  • 2 Hose Fitting w/Drain Plug Kit GLM # 13990, OEM # 22-806926a1
Mercruiser Manifold Kit W/4" Riser (V8 SB) Mercruiser Manifold Set W/6" Spacer (V8 SB)
Manifold Kit w/4" Risers and 6" Spacer (GLM)
- For Mercruiser GM V8 Small Block Raw/Fresh Water Cooling System
- Kit Contains:
  • 2 Exhaust Elbows GLM# 51140, OEM# 807988A2
  • 2 Exhaust Manifold Ass. GLM# 51230, OEM# 860246A10
  • 2 Spacers 6" GLM# 50600, OEM# 807477A2
  • 2 Elbow Gaskets GLM# 30240, OEM# 27-863724
  • 2 Elbow Gaskets GLM# 32080, OEM# 27-863726
  • 8 Screws GLM# 22355, OEM# 10-12244
  • 8 Screws GLM# 22381, OEM# 10-43749
  • 2 Hose Fitting w/Drain Plug Kit GLM# 13990, OEM# 22-806926A1
Manifold Set w/6" Spacer (GLM)
- For Mercruiser GM V8 (S.B.) cooling stystem 3 Inch Elbow Kit
- Kit Contains:
  • 2 Exhaust Elbows GLM # 51110, OEM # 98504a3
  • 2 Exhaust Manifold Ass. GLM # 51230, OEM # 860246a10
  • 2 Spacers 6" GLM # 50600, OEM # 807477a2
  • 2 Elbow Gaskets GLM # 30240, OEM # 27-863724
  • 2 Elbow Gaskets GLM # 32080, OEM # 27-863726
  • 2 Manifold Gaskets GLM # 31100, OEM # 27-33395
  • 16 Screws GLM # 22355, OEM # 10-12244
  • 2 Hose Fitting w/Drain Plug Kit GLM # 13990, OEM # 22-806926a1
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