Gen III / IV Engine Info

[bczee]

Here is a break down of Gen III and IV engine GM RPO code and engine Spec's of each. This should allow everyone to correctly ID each and to call them by there correct RPO code and not just the generic "LS1" or "LSX" name.

http://i190.photobucket.com/albums/z296/BajaCruz-in/misc/GM-Engine-Info-1.jpg

If you see any errors or typo, please PM me and I will correct it.

[TURBO BUICK]

bczee, great info that is consolidated. My thanks to you.
Rich

[Ryan364]

excellent table of knowledge!

[Buzzcut]

Can you add some more info to the table? I assume that the differences between the various 5.3's has to do with iron vs. aluminum block, or the multiple displacement system. That would be good info for the table.

Are there differences in HP as well?

This is a big learning curve for me, I'm looking to swap a 5.3 for a Crossfire in a '84 Vette.

[bczee]

Buzz.. If I can get the time i will add Block and Head info as far as Iron/Alum.

But in general, all LSx (1,2,6,7,A,etc) will be Alum, Only a few Truck block were Alum (SSR, TBSS ?) the rest were all Iron blocks.

Heads, I will have to do some research.. but if anyone has input to it.. pass it on and I will update, maybe along with the Head numbers (ie, 318, 241, etc)

[kralcp]

from Wikipedia, I have one of these going into a 63 impala with a T56

http://en.wikipedia.org/wiki/GM_Vortec_engine

"The L33 was an aluminum block version of the LM7, and was referred to as the Vortec 5300 HO in marketing materials. Power increased by 15 hp (11 kW), to 310 hp (230 kW), over the LM7, and torque was unchanged. It was only available on extended cab 4WD pickup trucks. Only 25% of trucks made in 2005 had the L33 engine.

L33 applications:

2005-2007 Chevrolet Silverado 1500 4WD
2005-2007 GMC Sierra 1500 4WD

another gen III engine with alum block was the LM4

Gen IVs include LH6 LC9 L76 and L92
"

[retrolsx]

great info guys alot more to come i have all of GM files so let me know if anyone needs more tech. My LSX swap book hits March of 2010 and will makes since of all the madness!

[Jeff McNab]

great info guys alot more to come i have all of GM files so let me know if anyone needs more tech. My LSX swap book hits March of 2010 and will makes since of all the madness!What LS topics will your new book cover? I have a couple good ones already, but want to learn as much as possible. I have the GM Technical Installation Guide, the "How To Swap Chevy LS1, LS3, LS6, LS7 Engine Into Anything" book, the "LS Engine Swap Wiring Book", by F-Bodies, Inc., and of course the Street & Performance tapes & You-Tube videos. All great stuff. But, can always learn more.:)

[retrolsx]

It will cover the breakdown of all LS engines the front accessories, mounting the motor, Fuel systems, exhaust, cooling, hooking up the gauges and everything LS! Let me know if you need any tech I do a lot of online articles on the swaps as well.

Shawn

[Jeff McNab]

It will cover the breakdown of all LS engines the front accessories, mounting the motor, Fuel systems, exhaust, cooling, hooking up the gauges and everything LS! Let me know if you need any tech I do a lot of online articles on the swaps as well.

Shawn Shawn, where are your on-line articles? Do you have a link to them for me? Thanx

[retrolsx]

Its from LSXtv.com i have a couple that are about to hit the stands ill link them once they do.

[345HP87SSAC]

Hello guys.

I am a LSX want to be. Currently talking with Shawn now.

Here is a cool summary of info I found on-line.

http://http://www.chevyhiperformance.com/tech/engines_drivetrain/shortblock/0912chp_performance_chevy_ls_engine_comparison/index.html

Bradshaw

[1096as]

Hey,
Anyone out there know what size throttle body a 2009 LY6 from a silverado 2500 hd has on it ???

Barra.

[bud659]

nice table. where can i find a similar table that includes HP?

Can someone send me a link where I can purchase the book please?

[bczee]

The table that I put together was just put together by browsing the internet, Magazine and other media sources. Wikipedia is a good starting source.

One of these days, I might get around to finding more information and update the table or create some new one. As I know the data is getting a bit old.. LOL..

[bj.949]

How do I buy your book?

[retrolsx]

book is out in OCT of this year,

the LY6 has a TB that is 88MM i belive... i know its a little smaller then the LS3 90 MM

[2003 escalade lsx376]

Dear Retro,

I have a 2003 escalade with a seized LQ9. I know I can rebuild the engine that I have, but that wouldn’t be as cool as having an LSX in the caddie. I have been trying to figure out if the swap is possible. I think I've figured out a few of the complications I might run into during the project, but I know there are a lot more. I can get a piggy back computer to fix the reluctor wheel issue and a FAST intake for the manifold issue. I could fabricate some kind of coil pack mounts for the valve covers. I need to know if the stock ECM will run the engine. I still want to register the vehicle for highway use and need it to pass emissions and not throw any DTC codes. I believe the same ECM that runs my 6.0L also runs the 5.3 and 4.8 so I think it can adjust the fuel map accordingly. Please help me figure out what all I need to address to make this swap a reality. Thanx, Paul.

[bczee]

What do you consider a "LSX", that term is used two ways.. one as a generic term for all Gen III and Gen IV engines.. two.. many manufacturs have banded there products LSX.. GM sells a bare Block for Aftermarket.. called the LSX block..

Since you have a Gen III / LQ9 engine in your caddie now. You could pertty much put any current 24x Reluctor wheel based engine in and with some minor tweeking of the current ECM and you could most likely pass any SMOG test and still be legal. You would need to use your current LQ9 accessories and sensors.

So, what are you calling LSX ?

[V8TEC]

Another good source of info is the GM Powertrain archives. There is info for every LSx engine they have produced...car or truck. Power graphs, photos, summaries of yearly changes, and other important data.

http://archives.media.gm.com/us/gm/en/news/events/pig_index.html

[Jeff McNab]

book is out in OCT of this year.

Whats with the book Shawn? Did it come out, or not?:confused:

[Nytram66]

great info guys alot more to come i have all of GM files so let me know if anyone needs more tech. My LSX swap book hits March of 2010 and will makes since of all the madness!
It seems you have a lot of information can you make a library and post all your info there where we can go and look it up. Also do you have a store? Or is there a list of your services?
thanks in advance