V8 overheating problem ( 5.7 mercruiser)

[bassarama]

Hey gang

Yeah yeah I know.... it's an I/O ::)

Anyways, I took this boat for a test drive and 1/4 of a mile odwn to the river the darn motor overheated...

The owner( geez THAT never happened before) :D

Me: Riiiiiight!!! uuuuhh uh :o.


At any rate, The guy says the problem is a raw water pump.

Optimistically, I say it's blown head gasket/s. Now in case I'm right do you think that the overheating may have cause severe damage to the heads/ block ?

Thanks for any advise.


Joe