2004 GM vortec information?

[Ruune]

I was looking at GM's vortec marine applications site, and they've still got the specs for the 2003s up. For 2004, Tigé is offering vortech options including 2 5.7L's (315 and 335hp) and a 6.0L (375hp). I figured that since this is a Tigé-sponsored site, that this would be a place to look for the .pdf documents for the '04 Vortech engines. We're specifically ordering the 335hp 5.7L, and I figured that they could post the 2004 .pdf spec and owners manual docs in the downloads area. If anyone at Tigé or any of the administrators here are watching, could you look into this?
Thanks!

[Matt Garcia]

Sure, I will see what I can do. Thanks.

[Ruune]

awesome man... thanks! The Merc and PCM docs would be beneficial as well, although PCM already has their current specs on their website.

[Paublo]

The "GM Vortec" that Tige is offering in their '04 boats are being put together by Marine Power. GM sells the blocks to Merc, PCM, Indmar, Marine Power and others. I understand that the powerplants going to Tige may be an exclusive, for awhile at least.

For a little more info, try their website: http://www.marinepowerusa.com/

[Ruune]

um no... the marine power engine is the carbureted base engine. I went over this with the dealer. I know that GM sells their short blocks to Merc, PCM, marine power, volvo penta, and others. From what I've read GM has their own marine-prepped longblock to compete w/ merc and PCM.

[Paublo]

I could be wrong, but was told that Marine Power was shipping all of the engine models that Tige sells under the GM Vortec label. This includes carburated, MPFI, and the 6L. If you look at the engines themselves, they look like and have the features shown on Marine Power's website- like dual oil filter, top mounted starter, etc. GM has not gone into competition with all of the companies that they supply to.

[Ruune]

sorry... I came off as a prick in my last post. I didnt mean to sound like that. My apologies.

[Paublo]

No problem....it wasn't taken that way.

I have seen "GM Vortec" stickers on different mfgrs promo boats. It is a generic designation.
It is very confusing how GM builds the engine and sells it to everyone. They are finshed off by various mfgrs with the biggest difference being the plastic hood over the air intake. Granted they all put on their own water pumps, exhaust manifolds, and program the control module. But you see drastic differences in hp ratings. Indmar for example doesn't list any ratings, they leave it up to the boat mfgr to decide what hp to call it. And is there any real premium justified for a PCM?

[Ruune]

PCM actually makes a lot of the modules that companies like mercruiser put in... specifically the ECM in merc inboards. They also have a lot of premium features like huge water separators/ fuel filters. Still, its 6 in one hand and 1/2 dozen in the other...

[Domsz06]

i hate how no one has a base hp listing. I mean this one says it has this, that one says it has that, its so confusing!!

[Ruune]

they're all tuned differently... different timing maps, plus diff headers/manifolds.

oh yeah... I confirmed w/ my dealer. Paublo is right about marine power/vortec. After hearing about corrosion problems w/ marine power, I'm going w/ the 315 merc and synchrotech. I'm quite a bit more confident with mercruiser, and I know that 315 is a strong engine... I've driven 22v's with that powerplant w/ and w/o synchrotech. Should be fun!

[Paublo]

Do you have additonal information about the corosion issues with Marine Power? From what I have seen it looks like a good unit w/ some nice features such as top mounted starter, dual alt belts, dual oil filters, 3 yr warrantee, and higher hp.
The merc has the advantage of more dealers, but I always carry an extra pump impeller- which is the only real part that I could think of needing unexpectedly. My dealer should be able to take care of anything. The Merc has a 1 yr warr. on everything and 3 yr corosion.

[Ruune]

not sure about what the specifics are, as I believe that may be part of an non-disclosure type thing... from the way they were hinting at it. It was strongly suggested that I go with mercruiser.

[Shaz]

Re: 2004 GM vortec information?

Originally posted by Ruune
I was looking at GM's vortec marine applications site, and they've still got the specs for the 2003s up. For 2004, Tigé is offering vortech options including 2 5.7L's (315 and 335hp) and a 6.0L (375hp).

Why would I have a 5.7L,325hp in my manual if I have a 335hp engine in my boat. Is it a misprint in my manual or is my engine not really a 335hp?

[OldSkier]

Re Vortec specs: Over on the MBO website, there has been lots of talk about folks wanting the "torque curves" from Malibu or Indmar.

Why? It seems that some of the optional upgrades for Indmar power plants that COST more, may offer more HP, but LESS torque.... or marginallky better torque. So, the folks are frustrated with not being able to see the actual torque curves for themselves.... to decide if holeshot and midrange "power" (= torque) in the lower priced motors are actually better than the higher priced "higher HP" upgrades.

Lots of HP sounds cool, but if it's only around at the high rpm's, it's only good for a few more mph at the top end... which most of us don't really care about.

NET: Are Tige owners interested in.... and getting access to the torque curves for the power plants avail for Tige boats ???