LS6 block in some F bodies
03-02-2003, 11:39 PM
#49
Registered User
Join Date: Feb 2002
Location: N. Carolina
Posts: 55
Originally posted by stik6shift98
how true is this ls6 block thing??????
how true is this ls6 block thing??????
To clear a few things up,
Some 01 & 02 F-Bodies came from the factory with LS6 blocks.
The color of the block means nothing.
Some LS1 blocks have a bullseye and some don't.
Casting #12561168 is a 01-02 LS6 block.
GM list the LS1 and LS6 blocks as interchangable.
The LS6 is a bit thicker in critical areas.
The LS6 'windows' are actually larger holes in the top of the crank journals to flow more oil at higher RPMs'.
There is no performance advantage in having a LS6 block with LS1 internals.
A LS6 block in a F-body DOES NOT make a LS6 motor in a F-Body!
Enjoy your cars.
03-03-2003, 12:13 AM
#51
Registered User
Join Date: Feb 2002
Location: N. Carolina
Posts: 55
Originally posted by stik6shift98
i figured that an ls6 block doesnt make an ls6 engine...thanks...
but still its a plus to have ls6 block
i figured that an ls6 block doesnt make an ls6 engine...thanks...
but still its a plus to have ls6 block
However, there are LS1/LS6 conversion kits comming to the market that may be worth looking into.
Enjoy your cars.
03-03-2003, 02:16 PM
#53
Registered User
Join Date: Aug 2000
Location: Houston, Tx USA
Posts: 1,903
Originally posted by NC Dude
Gents,
To clear a few things up,
Some 01 & 02 F-Bodies came from the factory with LS6 blocks.
The color of the block means nothing.
Some LS1 blocks have a bullseye and some don't.
Casting #12561168 is a 01-02 LS6 block.
GM list the LS1 and LS6 blocks as interchangable.
The LS6 is a bit thicker in critical areas.
The LS6 'windows' are actually larger holes in the top of the crank journals to flow more oil at higher RPMs'.
There is no performance advantage in having a LS6 block with LS1 internals.
A LS6 block in a F-body DOES NOT make a LS6 motor in a F-Body!
Enjoy your cars.
Gents,
To clear a few things up,
Some 01 & 02 F-Bodies came from the factory with LS6 blocks.
The color of the block means nothing.
Some LS1 blocks have a bullseye and some don't.
Casting #12561168 is a 01-02 LS6 block.
GM list the LS1 and LS6 blocks as interchangable.
The LS6 is a bit thicker in critical areas.
The LS6 'windows' are actually larger holes in the top of the crank journals to flow more oil at higher RPMs'.
There is no performance advantage in having a LS6 block with LS1 internals.
A LS6 block in a F-body DOES NOT make a LS6 motor in a F-Body!
Enjoy your cars.
Mirror? Jack the car up? Explain a simple procedure and it will be done this week.. heh
03-03-2003, 04:40 PM
#55
Registered User
Join Date: Jul 2002
Location: Nebraska
Posts: 82
Another way to check to see if its a LS6 blah blah blah... take a look at the heads.....
LS1
Part numbers:
12559853 (1997-98)
12559853 (1999-00)
12564241 (2001-03)
LS6
Part numbers:
12564243
the heads will have the last three digits marked on the lower right of the heads
-sources GMHTP
LS1
Part numbers:
12559853 (1997-98)
12559853 (1999-00)
12564241 (2001-03)
LS6
Part numbers:
12564243
the heads will have the last three digits marked on the lower right of the heads
-sources GMHTP
03-04-2003, 07:03 AM
#56
Registered User
Join Date: Feb 2002
Location: N. Carolina
Posts: 55
Originally posted by psychocabbage
Ok, so now us that have looked for the bullseye have to look again... Says we need to look "A casting # 12561168 denotes LS6 block. The number is located on driver's side, at back of left hand deck above transmission flange. " So how do we do that?
Mirror? Jack the car up? Explain a simple procedure and it will be done this week.. heh
Ok, so now us that have looked for the bullseye have to look again... Says we need to look "A casting # 12561168 denotes LS6 block. The number is located on driver's side, at back of left hand deck above transmission flange. " So how do we do that?
Mirror? Jack the car up? Explain a simple procedure and it will be done this week.. heh
Casting #12561168 is a LS6 block.
03-04-2003, 11:48 AM
#57
Registered User
Join Date: Aug 2000
Location: Houston, Tx USA
Posts: 1,903
Originally posted by Gossco95
Another way to check to see if its a LS6 blah blah blah... take a look at the heads.....
LS1
Part numbers:
12559853 (1997-98)
12559853 (1999-00)
12564241 (2001-03)
LS6
Part numbers:
12564243
the heads will have the last three digits marked on the lower right of the heads
-sources GMHTP
Another way to check to see if its a LS6 blah blah blah... take a look at the heads.....
LS1
Part numbers:
12559853 (1997-98)
12559853 (1999-00)
12564241 (2001-03)
LS6
Part numbers:
12564243
the heads will have the last three digits marked on the lower right of the heads
-sources GMHTP
03-04-2003, 02:56 PM
#58
Registered User
Join Date: Oct 2002
Location: No Va.
Posts: 355
Originally posted by psychocabbage
we arent saying we have an LS6 motor in there.. just that there is an LS6 Block in there.. nothing more...
we arent saying we have an LS6 motor in there.. just that there is an LS6 Block in there.. nothing more...
03-04-2003, 04:36 PM
#59
Registered User
Join Date: Feb 2002
Location: N. Carolina
Posts: 55
Originally posted by JaysZ
That's right, I'm only claiming the LS6 block. Cool, get to keep my sig.
That's right, I'm only claiming the LS6 block. Cool, get to keep my sig.
A LS6 block in your F-Body might sound cool, but the blocks are interchangable per GM.
A LS6 block in a F-Body means NOTHING from the factory.
A factory LS1 Block can be modded to make very respectable Horsepower and Torque.
Enjoy your cars.
03-04-2003, 05:47 PM
#60
Admin Emeritus
Join Date: Dec 1997
Location: Nashville, TN area
Posts: 11,157
Check this out...
Go to:
http://www.chevrolet.com/corvette/gallery.htm
and scroll down and to the right there are some Quicktime videos. One is of the LS1 and one is of the LS6. In the LS6 one they talk about the block, among other things.
Just something I thought you guys may find interest in.
Go to:
http://www.chevrolet.com/corvette/gallery.htm
and scroll down and to the right there are some Quicktime videos. One is of the LS1 and one is of the LS6. In the LS6 one they talk about the block, among other things.
Just something I thought you guys may find interest in.