Can I replace a ford 2.3 L 4cyl marine engine with a auto engine in my 1986 Bayliner OMC boat?

Can I replace a ford 2.3 L 4cyl marine engine with a auto engine in my 1986 Bayliner OMC boat? - 1

You CAN.

I've built engines for cars, trucks and boats. The main differences are the camshaft and the use of brass core plugs in the block. The most important thing about camshafts is the lobe separation angle. This determines the degrees in crankshaft rotation that the intake and exhaust valves on the same cylinder are open at the same time. This is what overlap is. The more overlap… The greater chance of ingesting water into your engine. The industry tries to keep LSA at 112 degrees minimum. The added benefit of a wide LSA is a broad power band. That means that torque maxes out at low rpms and stays relatively constant all the way up to ~4500 rpm or more.

With that said. A direct swap of 2.3 out of a car in to your boat will be fine. I would swap the freeze plugs to brass and not worry about the cam. Its been done many many many times.

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