As most posters have pointed out, the marine version is more corrosion
resistant. If you boat in fresh water the life expectancy difference might
not be that noticeable. In salt is another story. And if you don't mind
putting them on, you can buy several for the price of a single marine
version.

"Radman" wrote in message
oups.com...
Hello again all,

I have a question that I'm hoping someone can answer for me.

I needed a new water pump for my boat, it has an OMC 3.8L V6 (GM 229
3.8L V6)so I did some pricing and a new (BOAT)water pump was around
60.00-160.00 depending on were you bought it. So I went to my local
Autoparts store and brought the old water pump with me and after some
searching found one that looked the exact same, bolt holes,
inlets/outlet, everything the same... It was actually for an 1970 307
Gm motor, got it for 25.00 new... What I'm now wondering is will it
mater if it (waterpump) was designed for a boat or car, are there any
differences, is the rotation differnt???? Just want to make sure before
installing it and running the motor.. Thanks for any info you guys can
give me....

Radman............