Identify LS6 engine
09-13-2006, 04:40 PM
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Identify LS6 engine I have a long block which is supposed to be an LS6, though I would like to know for sure if I do have an LS6. The exhaust manifolds do look like the z06 manifolds versus the regular c5 manifolds. The funny thing is, this engine came out of a convertible. :\ I am hoping someone swapped an Ls6 in...
How can I verify the internals are of an Ls6. I understand about the block and heads, however, the heads could be put on an ls1, and some ls1 engines shared the ls6 block.
Thanks
How can I verify the internals are of an Ls6. I understand about the block and heads, however, the heads could be put on an ls1, and some ls1 engines shared the ls6 block.
Thanks
09-13-2006, 07:44 PM
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Look on the rear of the block right under the driver's side head, there will be a casting number.
If you have ls6 heads they will have a 243 casting number on the corber of the head. If you have 241, theyre just ls1 heads.
If you have ls6 heads they will have a 243 casting number on the corber of the head. If you have 241, theyre just ls1 heads.
09-13-2006, 10:34 PM
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Are we talking about the 12561168 casting number? I don't see how that would help me since some "Ls1" cars used surplus "Ls6" blocks. I am just trying to rule out someone putting Ls6 exhaust and heads on an LS1 block.
09-14-2006, 07:51 AM
#5
Originally Posted by Obelix G.
Are we talking about the 12561168 casting number? I don't see how that would help me since some "Ls1" cars used surplus "Ls6" blocks. I am just trying to rule out someone putting Ls6 exhaust and heads on an LS1 block.
LS1/LS6 is 5.7L 346 c.i.
Same thing.
09-14-2006, 03:47 PM
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There are several internal advantages...
Example: The LS1 pistons are made of a metal listed as "M124" - the LS6 pistons being "M142" which has a higher nickel and copper content. The LS6/m142 pistons are stronger and expand less under high temperatures, thus allowing them to reduce the bore clearance. Reducing oil consumption and increasing overall and high rpm durability. This information was taken from "How to build High-Performance LS1/LS6 V-8's" by Will Handzel. Incredible referense book for anyone who wants to know more about our motors...
It also lists the LS1/6 block number being #12561168 from 99-02. Not sure if there is an LS6 specific casting #. Apparently 01-02 LS1 blocks were almost Identical to LS6's. Hope this helps atleast a little.
Rick M.
Example: The LS1 pistons are made of a metal listed as "M124" - the LS6 pistons being "M142" which has a higher nickel and copper content. The LS6/m142 pistons are stronger and expand less under high temperatures, thus allowing them to reduce the bore clearance. Reducing oil consumption and increasing overall and high rpm durability. This information was taken from "How to build High-Performance LS1/LS6 V-8's" by Will Handzel. Incredible referense book for anyone who wants to know more about our motors...
It also lists the LS1/6 block number being #12561168 from 99-02. Not sure if there is an LS6 specific casting #. Apparently 01-02 LS1 blocks were almost Identical to LS6's. Hope this helps atleast a little.
Rick M.
09-14-2006, 03:52 PM
#7
Originally Posted by Camaro Rick
There are several internal advantages...
Example: The LS1 pistons are made of a metal listed as "M124" - the LS6 pistons being "M142" which has a higher nickel and copper content. The LS6/m142 pistons are stronger and expand less under high temperatures, thus allowing them to reduce the bore clearance. Reducing oil consumption and increasing overall and high rpm durability. This information was taken from "How to build High-Performance LS1/LS6 V-8's" by Will Handzel. Incredible referense book for anyone who wants to know more about our motors...
It also lists the LS1/6 block number being #12561168 from 99-02. Not sure if there is an LS6 specific casting #. Apparently 01-02 LS1 blocks were almost Identical to LS6's. Hope this helps atleast a little.
Rick M.
Example: The LS1 pistons are made of a metal listed as "M124" - the LS6 pistons being "M142" which has a higher nickel and copper content. The LS6/m142 pistons are stronger and expand less under high temperatures, thus allowing them to reduce the bore clearance. Reducing oil consumption and increasing overall and high rpm durability. This information was taken from "How to build High-Performance LS1/LS6 V-8's" by Will Handzel. Incredible referense book for anyone who wants to know more about our motors...
It also lists the LS1/6 block number being #12561168 from 99-02. Not sure if there is an LS6 specific casting #. Apparently 01-02 LS1 blocks were almost Identical to LS6's. Hope this helps atleast a little.
Rick M.
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09-14-2006, 04:03 PM
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. Id say because Ls6 is a Z06 engine. I have a ls6 on order , and thats why I chose it. Putting in the LT cam and a spring mod,,Figure if Chevy thought enough of the LS6 to put it in a Z06 Corvette , it was a good motor. Then again, I may be a moron.
09-14-2006, 04:05 PM
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The bottom of the cylinders have vents cut in them on the LS6
Try this: http://www.cadillacfaq.com/faq/answe...0of%20power%22
this article may help
Ray
Try this: http://www.cadillacfaq.com/faq/answe...0of%20power%22
this article may help
Ray
09-14-2006, 04:05 PM
#10
Originally Posted by The Hopkinator
. Id say because Ls6 is a Z06 engine. I have a ls6 on order , and thats why I chose it. Putting in the LT cam and a spring mod,,Figure if Chevy thought enough of the LS6 to put it in a Z06 Corvette , it was a good motor. Then again, I may be a moron.
09-14-2006, 04:06 PM
#11
Originally Posted by ISeeRed
The bottom of the cylinders have vents cut in them on the LS6
Try this: http://www.cadillacfaq.com/faq/answe...0of%20power%22
this article may help
Ray
Try this: http://www.cadillacfaq.com/faq/answe...0of%20power%22
this article may help
Ray
09-17-2006, 04:06 PM
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If it's casting numbers you want go here: http://www.automotiverebuilder.com/ar/eb040538.htm
There are some differences in the LS6 Crank.....
Ray
There are some differences in the LS6 Crank.....
Ray
09-19-2006, 08:23 PM
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does it have 243 heads? thats the LS6 head. 241 and 853 are the LS1 casting numbers.
run the block number. thats the only real way you will find out
there is no real advantage between a LS6 block and LS1 block, LS1 blocks are actualy stronger
run the block number. thats the only real way you will find out
there is no real advantage between a LS6 block and LS1 block, LS1 blocks are actualy stronger
09-21-2006, 07:52 AM
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Originally Posted by Cop Car
there is no real advantage between a LS6 block and LS1 block, LS1 blocks are actualy stronger