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Evinrude / Johnson V6 outboard engine history

V6 outboard engine history 1976 -2006 from GLM Marine

Evinrude and Johnson V6 outboard engine history 1976-2006
  • New letter was faxed to us from GLM Marine tech service rep Dennis along with new aftermarket drawing in the hope of making it easy to look up and purchase GLM Marine aftermarket products.

The 90 degree V6 crossfire outboard
  • The first V6 outboard was introduced in 1976. These engines were in production (with few changes) for 16 years (until 1992). The engine was basically a 90 degree crossflow V4 with two additional cylinders added to the top. Two separate 3-cylinder ignition systems were employed. The engines were available with three individual two barrel carburetors were never available with fuel injection and can be identified by the removable transfer port covers and deflector dome on the top of the pistons. They have been available in six different horsepower versions; 150,155,175, 185, 200, and 235
The increased horsepower of the V6
  • Outboard engines required a much stronger lower gear housing. The large diameter V6 gear housing ( that was eventually used on the higher horsepower V4 outboards and the V6 and V8 sterndrives ) was also introduced in 1976
The 90 degree V6 loopcharged outboard
  • For the 1986 model year Evinrude and Johnson introduced a new 90 degree V6 engine. The engine design has been very successful and has been in production for 20 years. The new engine was basically a 90 degree loopcharged V4 with two additional cylinders added to the top. A loopcharged engine utilizes a sophisticated transfer port design and a lightweight flat top piston for dramatic horsepower increases. The V6 loopcharged engines have the horizontal reed valves and were available with three individual two barrel carburetors or fuel injection. A 90 degree loopcharged engine can be identified by flat top pistons and do not have removable transfer port covers. They have been available in four different horsepower versions; 185, 200, 225 and 250.
The 60 degree V6 outboard
  • For the 1991 model year Evinrude and Johnson introduced a new V6 engine. With modern foundry techniques these engines could be cast with a space saving 60 degree cylinder angle. The most distinctive part of the 60 degree design is the reed valve mounting position. While most outboard engines have the reed valves located over the crankshaft at the front of the crankcase, these new 60 degree engines have the reed valves mounted over the transfer ports on the sides of the crankcase. All of the 60 degree engines are loopcharged and were available with either carburetors or fuel injection, The engines are still in production and have been available in two different horsepower versions; 150 and 175.