DAlgozine

Looking for more detailed info on the various specs of the LS engine family. Here's some of what I have

Engine.......Bore..................Stroke ..............Rod
4.8.......3.78" (96mm).......3.27" (83mm)........?
5.3.......3.8 " (96mm)........3.62" (92mm)........?
5.7.......3.9" (99mm)........3.62" (92mm).......6.098
6.0.......4.0" (101mm).......3.62" (92mm).......6.098

Anyone no where to find detailed engine specs on the LS? link?
Looking for rod lengths ?
Piston details, such as wrist pin location, are they all in the same location?

rtr2001ss

iTrader: (2)

Here's a Gen III Chart.

DAlgozine

Thanks, I found some more info ,as well

Engine.......Bore..................Stroke ..............Rod
4.8.......3.78" (96mm).......3.27" (83mm)........6.276
5.3.......3.8 " (96mm)........3.62" (92mm)........6.098
5.7.......3.9" (99mm).........3.62" (92mm)........6.098
6.0.......4.0" (101mm).......3.62" (92mm)........6.098



http://www.gmhightechperformance.com...ory/index.html



http://forums.popularhotrodding.com/...ext/page2.html

(about halfway down the page)



http://www.enginebuildermag.com/Arti...all_block.aspx



http://forums.hybridz.org/showthread.php?t=87947

Petraszewsky

iTrader: (28)

Do you need to know compression ratio too??

DAlgozine

Sure, if you have more on the Gen IV engines. Here's what I have so far:

Engine.......Bore......................Stroke ..............Rod ......Compression
LR4 4.8......3.78" (96mm).......3.27" (83mm)........6.276.........9.5
LM7 5.3.....3.8 " (96mm)........3.62" (92mm)........6.098........9.5
LS1 5.7.....3.9" (99mm).........3.62" (92mm)........6.098........10.1
LQ4 6.0.....4.0" (101mm).......3.62" (92mm)........6.098.........9.4
LS2 6.0.....4.0" (101mm).......3.62" (92mm)........6.098........10.9

Petraszewsky

iTrader: (28)

RPO / Displacement / Bore / Stroke / Block Material / Head Material / Compression


LY2...4.8...96.01 (3.780)...83.00 (3.268)...FE...AL...9.1:1

LH6...5.3... " " ...92.00 (3.622)...AL...AL...9.9:1
LY5...FE...AL
LMG...FE...AL
LC9...AL...AL
LH8...AL...AL
LMF...FE...AL
LS4...AL...AL...10.0:1

LY6...6.0...101.6 (4.000)...92.00 (3.622)...FE...AL...9.6:1
L76...AL...AL...9.6:1 on trucks ....10.4:1 on cars
LFA...AL...AL...10.8:1

L92...6.2...103.25 (4.065)...92.00 (3.622)...AL...AL...10.5:1
LS3...AL...AL...10.7:1

LS7...7.0...104.78 (4.125)...101.6 (4.000)....AL...AL...11.0:1

LSA...6.2...AL...AL...9.0:1
LS9...AL...AL...9.1:1

69LT1Bird

iTrader: (1)

Here is a PDF file I found a while ago that has a ton of information.

Obviously some part numbers are now changed, they would be GM parts if the numbers always stayed the same.

supermouse4

The PDF is a reservoir of information. Thanks for finding it.

396375

iTrader: (10)

Great info.

396375

iTrader: (10)

Anyone know the total weight of a 6.0 iron block?All I can find is that they are about 70#s heavier then a aluminum block.
Thanks

rtr2001ss

iTrader: (2)

Looks like the LH6 5.3L is the same as the L33 for specs. I've got the L33 in my 06 Silverado. Good motor but 3.42 rear end ratio makes the truck a pig.

396375

iTrader: (10)

I found out the iron block weighs 180 #s.