1997 Marine Power Vortec 307?

[Tsumi]

Does anyone know the specs of this engine?

Google isn't turning up anything useful.

[chpthril]

What is it in? Dont recall either ford or GM having a marine 307 and Marine Power wasnt in Tige boat until like 2003 or 2004 and the 350 ci was the smallest. Ford got out of the marine biz in late 90's IIRC

[Tsumi]

1997 Tige Pre2002.

[chpthril]

Is it a 307 cubic inch or a 307 horse power? I assumed CI. In 97, i would expect it to be a 350 CI Mercuiser and be a 315 HP.

[Tsumi]

I don't know actually, I'm just going by what it says on top of the engine.

http://web.archive.org/web/199702061...ce/ws2002.html

On the archive site it says the Vortec 307 was an option. I think that's horsepower rating, but I'm not sure.

[chpthril]

Cant find any pics on that archive site, but heres the text from the purple box on the right.

SPECIFICATIONS
Length: 20 ft.
Beam: 90 in.
Fuel Capacity: 32 gal.
Seating Capacity: 8 skiers
Dry Weight (W/Engine): 2,775 lbs.
Base Engine: MerCruiser 5.7L
Engine Options: MerCruiser Scorpion 377, Black Scorpion, 350 Magnum EFI Gen1+; Vortec 307
Standard Prop: 13 x 13 stainless
MSRP: $21,900

So not sure if they are referencing HP or size. Where's Mike Allen when you need him.

[Ruger761]

If I can remember tonight I will check my owners manual see if it has it in there. I know it has 4 or 5 diff motors listed if TA doesnt chime in soon

[WakerideN]

had the same motor on my pre 97 ... think that cover says vortec 307 but its like a 280 or 285 hp motor.

[chpthril]

So its a 307CI engine then.

[Tsumi]

The guy who owns the boat says it's a 350 engine that was an upgrade from the stock carburetor engine.

[chpthril]

The guy who owns the boat says it's a 350 engine that was an upgrade from the stock carburetor engine.

Thats a good thing, is it TBI or multi-port EFI? Based in T-Allen's info, that a 25HP diff.

[Ruger761]

Very nice information! Nice to see the layouts of all of them side by side as well. I dug through my file and didnt have anything like this. But had the manuals to everything else down to the brake buddies. Orginal owner kept everythign for me.

[Tsumi]

Thanks, doesn't help me out with the specs though.

The guy is asking a bit more than I'm willing to pay at the moment, and it doesn't have a tower (kinda necessary for us since we hydrofoil) so I'll pass on it for the moment.

[Ruger761]

Thanks, doesn't help me out with the specs though.

The guy is asking a bit more than I'm willing to pay at the moment, and it doesn't have a tower (kinda necessary for us since we hydrofoil) so I'll pass on it for the moment.

How does this not help you out? You answered your own question when you said the guy said it was a 350 upgraded from the stock carb. If its a 350 is a standard Mercrusier Magnum (roughly 265HP) not a Vortec 307. Now what he put on it as an upgrade would be the question. Did he swap the stock 2 barrel carb out for a 4 barrel, did he upgrade to EFI.

Course if hes asking to much $ for it then guess it doesnt really matter. Towers are pretty easy to add if the boat is priced correctly from the beginning.

[Tsumi]

$10k with nearly 1000 hours on the boat.