Exhaust manifolds for OMC Cobra and 800 models
- Available for GM 262 4.3 liter V6 and 4 inline cylinder motors. Chevy GM 5.0 liter, 5.7 liter 305/350 CID V8 small block center rise replacements.
- Conversion kits for older Ford V8 ‘log style. Exhaust bellows, risers, elbows and engine gaskets.
- We ships to United States, Canada, Australia and International. Standard OEM manufactured castings can have uneven internal wall thickness due to their casting processes.
- GLM Marine uses a ‘lost foam casting ’ process, allows for more accurate casting of the wall between the water-jacket and gas area.
- This prevents thin spots in the wall which lead to premature failure. The GLM Marine brand is also designed with a larger water cooling area, up to 40% more compared to original OEM models.
- This can help reduce the overall temperature, leading to longer gasket life. The internal area has also been designed to prevent back pressure or excessive turbulence.
Click here for Mercruiser V6 and V8 GM manifolds