3.0 Interchangeablility issues?

[Dante04SRT]

I am looking at a slightly newer 3.0 motor for my boat. Mine is an '87, I'm looking at a '90.

Looks like the only physical differences are the flame arrestor and the electronic ignition. Is the carb any different? I primarily need the long block and I'll use all my original stuff.

will my old distributor fit right up? I would assume so.

 

[Bondo]

Re: 3.0 Interchangeablility issues?

Check the Bolt Pattern on the rear of the Crankshaft,......
That should be the only place there Might be an Issue...........

 

[Dante04SRT]

Re: 3.0 Interchangeablility issues?

Check the Bolt Pattern on the rear of the Crankshaft,......
That should be the only place there Might be an Issue...........

The actual crank bolut pattern for attaching a flexplate/flywheel setup (might be something else in the marine world)?

 

[Bondo]

Re: 3.0 Interchangeablility issues?

Ayuh,......

The Bolt circle on the 2 piece rear main seal motors is, I believe 3, 1/4"s.......
It's 3" on the newer 1 piece seal motors........

That'll cause Flywheel fitment issues......