Talk:General Motors Vortec engine

Vortec 2500 vs 3500
What is the difference between the Vortec 2500 and Vortec 3500? — Preceding unsigned comment added by 65.111.197.194 (talk) 13:58, 25 January 2006‎


 * There is no such thing as a Vortec 2500. — Preceding unsigned comment added by 131.10.254.61 (talk) 14:40, 4 April 2007‎

About the Vortec 4300
Back when the 4.3 engine was first used, it was not called the Vortec 4300. Also, intiially, when the engine was first used in GM pickup trucks, it actually had a 4 barrell carburator. I personally have seen one of these setups on an old truck before. I believe the 4 barrell carb may only have been around for a year or so, as they're extremely rare. — Preceding unsigned comment added by 142.167.28.236 (talk) 00:09, 5 May 2006‎

Plagiarism Claim
WARING THIS PAGE'S CONTENT IS DIRECTLY STOLEN FROM THE FOLLOWING LINK!!!!

WARNING THIS IS PLAGURISM!!!

http://experts.about.com/e/g/gm/GM_Vortec_engine.htm


 * Please sign your posts. Additionally, please read the quote at the bottom of that article: "This is the "GNU Free Documentation License" reference article from the English Wikipedia. All text is available under the terms of the GNU Free Documentation License. See also our Disclaimer." The About.com page is simply a mirror of the information available here. Ayocee 18:42, 26 October 2006 (UTC)

Vortec 5700
I can't tell but I think I know the answer but I will ask it anyway.

Was the Vortec 5700 pushrod? Because my pickup has one and I just wanted to know, thank you. — Preceding unsigned comment added by 71.243.207.189 (talk) 02:23, 24 March 2007‎


 * Yes, the Vortec 5700 was a pushrod engine. All Vortec V6 and V8 engines are pushrods. — Preceding unsigned comment added by 131.10.254.61 (talk) 14:40, 4 April 2007‎


 * Thank you very much. — Preceding unsigned comment added by 68.238.79.170 (talk) 02:03, 3 May 2007‎

TYPOS?

I'm thinking the figures given for the torque ratings for this engine have typos. The Newton-meter (N-m) ratings convert to 330 and 350 Ft-Lbf respectively, instead of 430 and 450 currently. — Preceding unsigned comment added by 88.159.94.133 (talk) 02:22, 2 December 2011 (UTC)

Swapping engines
I realize this isn't a tech forum, but I haven't had much luck elsewhere. Seems the best information I've found is right here!

I have a 1994 Sierra K1500 with a 4.3 V6 - zero compression on cylinder #1. I would replace the heads but the engine has about 158K and I'm leaning more towards installing a fresh 5.7 - a crate 350 is actually cheaper than a crate 262, so I'm going with the 5.7 - I don't really care about 4 extra MPG. I thought this would be a popular swap but have found very little information about it. I've seen the topic scratched by a few forums but nothing really substantial, and certainly no actual experience. More than anything are the Jeep guys putting the V6 into their crawlers because it's lighter than the 350 and can be mounted high in the engine compartment.

Anyway, here's what I think I know:

The 5.7 will bolt up to my transmission, but I will need a new flex plate. The wiring harness is identical. I will need a new exhaust (jury's still out on this one, help me out folks). The 4.3 has a larger than normal radiator that will be sufficient to cool a 5.7. I will need new motor mounts.

Here's what I'm not sure of:

Will the sensors stay the same? (Knock Sensor, MAP, etc) What type/generation of 350 will I need to find to be closest to matching up? Will the fuel delivery/TBI I currently have work with a 350 with the proper manifold? (The 4.3 runs at about 9-13 PSI fuel pressure, I'm not sure this is adequate. Regulators, control modules, etc - will those change this?)

I'm somewhat tech savvy but I'm sure I've missed plenty. Any feedback or success/failure stories/pictures are much appreciated.

Thanks to all who took the time to read through this, looking forward to responses.

RRaleigh01 05:22, 8 September 2007 (UTC)

Last sentence of opening paragraph
"Modern Vortec engines are named for their approximate displacement in liters." Since the engines are generally named 5700 (fifty-seven hundred) or 4300 (forty-three hundred), this would be the displacement in milliliters or cubic centimeters. In this sense though, liters would be correct, as millililters is only a prefix designating the number times 10^3, but it seems that the displacement in liters would mean that the 5700 would be 5,700 liters - quite large.  Zchris87v  16:44, 1 October 2007 (UTC)


 * Good point - changed it to cubic centimeters since milliliter is not commonly used in describing displacement, while the cc is. Ayocee 21:02, 1 October 2007 (UTC)

5.3L Gen IV LH8
The 5.3L in the Hummer H3 Alpha (also for the '09 Colorado) is a "new" engine, or at least has a new designation that being the LH8, a Gen IV 5.3L small block Vortec engine. There is info on the GM Media site for specifics. If someone wants to add this, should take 10 or 15 minutes. —Preceding unsigned comment added by 69.128.69.122 (talk) 16:04, 25 March 2008 (UTC)

I have a 2002 gmc sierra and i was wantingto use it as a "project truck" i was wondering if it was at all possible to twin turbo it and if they made four speed transmissions for that motor. —Preceding unsigned comment added by 24.227.104.18 (talk) 14:09, 13 August 2008 (UTC)

Vortec LS2 6.0L
An ommission in the current article page is the Vortec series LS2 factory equiped in the Trailblazer SS. The main differences between this version and the sports car version of LS2 is the Vortec intake manifold, the truck water pump and accessory drive configuration and the truck exhaust. —Preceding unsigned comment added by 68.209.128.242 (talk) 01:20, 5 January 2009 (UTC)

03 trailblazer
I need engine diagram for a 4.2 liter LL8 chevy motor —Preceding unsigned comment added by 67.246.13.161 (talk) 02:48, 6 February 2009 (UTC)

1994?
This is article stats that the Vortec name was first used in 1994...I suppose that this excludes the Vortec CPI engine in my 1992 Bravada...with a big VORTEC across the top. —Preceding unsigned comment added by Masteryung (talk • contribs) 04:48, 6 May 2009 (UTC)

Vortec engine use in MasterCraft Boats
On the MasterCraft website while using the "design a boat" feature you get several options to choose for engines, most of which are Vortec engines. There are also some other boat companies that use Vortec engines in their boats. Should we list the boats in the applications list for the engines? IXetsuei (talk) 04:18, 14 June 2009 (UTC)

hard start
What could cause the 350 vortec to be hard to start? —Preceding unsigned comment added by 76.187.218.107 (talk) 16:23, 15 September 2009 (UTC)

looking for info on the heads on a 4.8 vortec
i just bought a 1999 cmc pickup it has the 4.8 vortec i am getting antifreeze in the oil took the valve covers off one head looks like new the other one has alot of sluge i heard the gm used two comp. for the heads they had problems with one of them cracking i was woundering if anyone has any info about this and what to look for thanks —Preceding unsigned comment added by 204.237.68.218 (talk) 16:07, 21 April 2010 (UTC)

response to 4.8 vortec
There was a class action lawsuit against GM and its use of Dexcool. Apparently it goes bad, creates sludge, and 'eats' at gaskets. If I remember correctly, the awards for the lawsuit were for 94-03 or somewhere in that area, but it was specific to certain motors. 4.3, 3.7, etc. This is the link to that site,http://www.dexcoolsettlement.com/Missouri/index.php3 Of course, with GM having filed for bankruptcy, I am sure things have changed with that lawsuit. Carpenoctem76 (talk) 10:09, 28 May 2010 (UTC)

4.3(262) vortec v6
this page says that the vortec v6 was first used in 1988, however, i have an 87 C10 that came factory with a 4.3 v6, and i know that the vortec v6 was first used in 1985, to replace chevys old 250 and 292 inline 6. —Preceding unsigned comment added by 70.254.43.229 (talk) 06:27, 17 June 2010 (UTC)

correct units
you are so stupid the correct units are cubic centimetres or litres not cubic millimetres read firts and later write dont write whit out think because that the rest of the world think whe are stupid and dont know the si system — Preceding unsigned comment added by 187.141.17.104 (talk) 13:46, 27 May 2013 (UTC)

I'm not wiki hip, but the bore diameter on a Vortec 454 is being incorrectly converted to 4.300". It should read 4.250". — Preceding unsigned comment added by 71.239.119.18 (talk) 17:34, 31 December 2013 (UTC)


 * I have changed "millilitres" to cubic centimetres in the opening section. While it's technically correct, nobody uses millilitre for engine displacement. As for the "incorrect conversions" mentioned above, rounding the engine displacement up to the nearest deciliter (0.1 litre) for marketing reasons and ease of reading has been done for about a hundred years. While technically incorrect, it's the de facto standard in engine displacement nomenclature. TorW (talk) 21:36, 12 February 2014 (UTC)