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Mercruiser manifolds GM / Ford V6 V8

GLM Marine aftermarket exhaust manifold for GM and Ford
120 - 140 hp. 4 cylinder V6 - V8 engines

  • GLM Marine aftermarket manifolds are made by " Lost Foam " technology for precise specification and casting quality. They have hot dipped galvanized coating black painted for corrosion resistance.
  • GLM fully tuned design to reduce back pressure and enhance flow to add increase engine horse power.
  • Fully tuned design allows manifold to add 30 - 40% water cooling area for longer life.
  • In the 4" elbow, there are two extra exits at each side to increase water flushing to avoid engine over heating.
  • In V8 GM small block, fully tuned design will guide exhaust gases directly to elbow without turbulence and back pressure. In the meantime, additional 40% water cooling area will decrease the entire manifold body temperature significantly.
  • In V8 GM big block, extra 30% water cooling area will help reduce temperature in port exit area for longer gasket life. The tuned design will reduce turbulence and enhance flow for higher and maximum marine engine power.
  • See our application / compatibility chart to find the right manifold parts for your engine.

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Exhaust Elbow Click here

51210 120-140 hp gm 153 181 4 cyl.1982-1995
51210 120-140 hp gm 153 181 4 cyl.1982-1995

P/N 51210 Exhaust manifold OEM 806867A8 $256.00 GM 120/140 hp 4 Cylinder 153/181 CID years (1982 - 1995)

 

P/N 51212 Exhaust manifold OEM 96705A1 $308.00

Model 140 - inline 4 GM 181 CID (1968 - 1982)

 

 

P/N 51214 Exhaust manifold OEM 806867A12 $313.00 3.0L / 3.0LX - inline 4 GM181 CID 4 cylinder 1990 and up

 

51220 manifold 51140 exhaust elbow 4 inch
51220 manifold 51140 exhaust elbow 4 inch

P/N 51220 Center rise manifold - cast iron OEM 99746A17 $203.00

GM V6 229/262 CID  1983 and up for 3 inch 15 degree and 4 inch 7 degree elbows

51224
51224

305-350 1983 - present
305-350 1983 - present

P/N 51230 Mercruiser manifold - cast iron OEM 860246A10 $170.00 For 200 - 320 V8 small block - GM 305/350/377 CID (1983 and up for engines with serial numbers 0M and up) 3 inch or 4 inch elbow fitting

P/N 51235 Aluminum manifold - black OEM N/A $247.00

51237 port 51238 starboard 1977-1982-b
51237 port 51238 starboard 1977-1982-b

P/N 51237 Port side manifold OEM 77234A7

For 198 - 898 GM 305, 350 years 1977-1982 V8 small block 5.0L/5.7 liter log style with riser mount on end

 

P/N 51240 Exhaust manifold assembly - cast iron OEM 8807078A6 330 - 370, V8 big block and GM 454/502 (1981 and up

P/N 51245 Aluminum - black OEM N/A

 

P/N 51250 Port side OEM 65604A12 for 215 - 888 Ford 302/351 CID 5.0L / 5.8L Exhaust manifold 1977 and older

51260 port side 51262 starboard side
51260 port side 51262 starboard side

P/N 51260 Port side manifold OEM 807294A3 For 262 / 4.3L EFI/LH/LX V6 (1996 - 2001)

P/N 51262 Stbd side OEM 807293A2

305 327 350 1977-1982
305 327 350 1977-1982

P/N 51237 Port side exhaust manifold OEM 77234A7

GM 305 / 327 / 350 CID V8 small block (1977 - 1982)

Call for availability

488 485 470 4-cylinder
488 485 470 4-cylinder

P/N 51202 Aluminum manifold OEM 816219A5

165 / 170 / 3.7L / 180 / 190 / 470 / MCM 485 / 488 inline 224 CID 4 cylinder (1980 - 1989

140 1968-1982
140 1968-1982

P/N 51212 Center rise manifold assembly OEM 96705A1 $308.00 Model 140 - inline 4 cylinder GM 181 CID (1968 - 1982)

59235 aluminum set
59235 aluminum set

P/N 59235 Aluminum exhaust manifold kits with risers and mounting hardware $899.00 - $999.00 - GM V6 and V8 small block 3 inch or 4 inch hose fittings

58221 229 262 V6
58221 229 262 V6

 

P/N 58222 Complete manifold sets for GM 4.3L V6 262 1983 and up  - including risers and installation hardware OEM N/A $699.00 - $899.00 For 3 inch and 4 inch elbows

51214 4-cylinder 1990 up
51214 4-cylinder 1990 up

P/N 51214 Exhaust manifold assembly OEM 806867A12 $313.00

3.0L/3.0LX - inline 4 and GM 181 CID 4 cylinder

 

350 gaskets
350 gaskets

Manifold Gaskets / GM / Ford engines
click here
$4.00 - $22.00

For all Mercruiser / GM 4 cylinder, 6 cylinder, V6 and V8 models

 

Lower engine exhaust bellow - manifold 3 inch elbow to 3 inch Y-pipe click here

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