Chevrolet Camaro 1967-2002 - LS6 block in 2002 camaro how can you tell??
01-07-2006, 07:59 PM
i think i might have an ls6 block in my 2002 z28 because the water pump in not one from a 98-2002 because i just got a hypertech 160 stat and it does not fit, how can you tell if you have an ls6 block in a 2002 z28 camaro, i heard they put some in because they ran out of the ls1's, thanks
01-08-2006, 06:10 PM
Hope this helps...
Fall 2003 Camaro Performers magazine printed an article regarding the 01-02 model f-bodies.In 1997 GM had the Montupet factory in Canada to provide engine blocks for the corvette.But from 1998-2002 GM used two factories to produce the LS1 engine block.Montupet, and Nemak in Mexico.In 2000-2001 the impending introduction of the corvette Z06 meant that GM would have to re-engineer the LS1 block for more strength. Nemaks material properties were 10% higher, so they went with Nemak as there supplier.Nemak supplied the stronger LS6 casting.Montupet provided the LS1. According to GM the sheer volume in which this block was produced meant that they were able to let some go to the f-body program. It is said that 10-15% of all 2001 f cars and around 25% of all 2002 f cars are running around with LS6 blocks. to see if your 2001 or 2002 f-body has an LS6 block open the hood and on the drivers side with a mirror try to see the back of the left hand deck above the transmission flange. A cast-in 12561168 denotes the LS6 block. If you cant see the numbers you might be able to tell by the luster of the block the Montupet plant cast a shinier block (LS1) and the Nemak plant made the duller stronger block (LS6) starting in 2003 all LS1/LS6 blocks will be of the Nemak configurations."
Theres a much easier way, look on the front of the block on the passenger side closest to the #2 clyinder, if there is what looks like a bullseye then you have an LS1 block. If not you have an LS6
If you get under your car....Looking at the back side of the block....
Look up where the head meets the block on the drivers side of the engine....
You can see the casting number on the block....
This way you will know for sure....
PSJ aka Marc
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