Marinette Boat Forum

1985 sportsman Marinette - Currently two tired 318's,going to a minimum long block rebuilds, thinking about 360 swap though, any thoughts on good bad or otherwise.

I may be wrong, but I think swapping to the bigger engine different flywheels and other minor details.

360 requires a different flywheel, harmonic balancer and oil pan.

Make sure your engines are actually wore out (excessive blowby, oil burning, knocking, etc). Of all the calls I get for replacing engines, only about 20% actually need it. The rest are electrical, fuel or tunning issues.