replace Mercruiser 2.5L 1989 with Mercruiser 3.0 1994

[liusigou]

Today I bought a Mercruiser 3.0 1994. All cylinders pressure are higher than 145. I will remove old 2.5L and mount 3.0, then connect 3.0 to the old wires.is it easy? But I have found there are different between 3.0 and 2.5.

Can anyone help me to upgrade?

 

[Scott Danforth]

unbolt the old, bolt in the new