Identify LS6 engine
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
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.
LS1/LS6 is 5.7L 346 c.i.
Same thing.
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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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
There are some differences in the LS6 Crank.....
Ray
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

