marine v-8

[grey1]

I've got a 1994 Glastron 19' bowrider. Ford 5litre. I didn't drain it and now I have a big hole in the block. Where can I find a Replacement motor? I need some ideas. The dealer tells me a car 5 litre won't work.

 

[Bens87tr]

You can check with Jasper, they deal with marine applications. In connecticut we recommend www.affordablemarine.com , but their site is down right now (not sure why).

 

[wlaukaitis]

Apparently the only differences (as far as I know) Is the cam because it runs backwards, the water pump and water jackets are coated for the salt water and I suppose the exhaust manifolds.

I friend of mine just bought a little boat with the GM 2.5L 4 banger. Looks exactly like the "Quad 4" "Tech 4" etc with the above exceptions.

However, this is what I have heard from other boat experts, which I am not.


OOps, and the starter, obviously. (If it runs backwards, it has to start backwards....)

 

[myclone]

Im not a boat expert by any stretch of the immagination but in my search for more durable 4.3 parts Ive spoken with some marine mechanics in my quest for info. I picked up a little basic info that may or may not help you that includes the following:

(note: this info is centered around GM marine blocks and cranks only so I dunno how much if any applies to ford engines)

1. You can get "marine" engines in standard automotive type rotation direction or reverse rotation as it depends on the out drive as to what rotation you need. My brief lesson in boat drive systems told me that depending on what make the drive is denotes what rotation direction the engine needs to be and some manufactures use both/either. One marina mechanic told me that he commonly sees two or more boats of the same model/manufacturer with opposite rotating drive assemblies/engines. I didnt ask why as I was interested in blocks/cranks only so rotation direction didnt matter to me.

2. On GM stuff the rotation doesnt really matter as far as the water pump is concerned because you can get a WP that is compatible with either reverse or standard rotation very easily (serpintine belt GM V6/V8s turn "backwards" compared to the old style V belt pumps). I dunno if its as easily/cheaply done with ford engines though but Id suspect its not a huge deal.

3. All the marine mechanics/parts ppl/etc I spoke with all agreed that at the very minimum true marine blocks were of a higher nickle content than automotive blocks for durability (and corrosion protection?) since marine engines see more usage at a higher RPM for longer periods than automotive engines (generally speaking).

4. A few ppl I spoke with mentioned the water jackets were "coated" (they didnt offer any more of an explanation as to why) but not all of the ppl I spoke with mentioned it. Granted I didnt specifically ask if all marine blocks were coated so that may be why some ppl mentioned it and some didnt. An educated guess is that if boats do not have a enclosed cooling system (I have no idea) with antifreeze and use the surrounding body of water the boat is floating in for cooling that the water jackets are coated for corrosion protection. Thats just a guess though.

5. Other than anything that would be affected by the reverse rotation (cam, starter, water pump, etc) the ppl I spoke with said that automotive engines are used quite often as replacements when the boat owner is on a budget and the boat will not be used in salt water. I cant verify that being the norm as Im not into boats at all so take what these ppl told me for what its worth (translation=you are prolly more qualified than me to judge what is worthless info and what isnt since you own a boat).

HTH some.

 

[grey1]

Thanks Guys
Ordered my marine engine from Jaspers and it comes for delivery next Tuesday. 18 mo warranty. long block 2455 including warr. & delivery. Thanks

 

[wlaukaitis]

can you get a Paxton on there?

 

[TurboJunky]

"Winterize" your new engine. It's much cheaper than replacing motors every season

Boat owner 6 yrs now and loving it!