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QUESTION; LS6 block

This is a discussion on QUESTION; LS6 block within the Camaro / SS forums, part of the Vehicle Specific category; what the easiest way to see your block numbers, to see if i got a ls6 block? mirror? soft clay? ...

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    Member camaross1's Avatar
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    Question QUESTION; LS6 block

    what the easiest way to see your block numbers, to see if i got a ls6 block? mirror? soft clay? the reason im asking ,is when i had my car dynoed stock, i got 333 rwhp, and the dyno operater said that was some good numbers for stock ls1, then i put new ls6 heads ,right out of the box, springs and pushrods and comp cam and tune, then dynoed again, i got 429.7 rwhp first pull
    Last edited by camaross1; 09-13-2010 at 06:58 PM. Reason: add

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    A telescoping mirror and a flashlight is the best way. However, as pointed out by Tatertot in another thread there are apparently casting marks on the front of the block that also differentiate the two.

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    Here is the other thread: Some 01-02 fbodies came with a ls6 block

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    what kind of dyno was it??? tghoes numbers seem normal for heads and cam combo... the block won't make much of a difference in numbers...

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    were talking about ,high dyno #s ,before heads and cam, stock numbers 333rwhp

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    question; LS6 block bulleye

    http://tinypic.com/r/5vvvp2/7 no bulls eye? or yes bullseye? need help with old eyes, do i have the LS6 block?

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    Ls6 block

    http://tinypic.com/r/2q3zvkh/7 compared to this pic, it looks like theres a little hat looking thing on top of it, and compared to the pic of my car, doesnt have that piece on top, so my thoughts are, i do have a LS6 block, thats cool, and im glad that shot of the bulls eye engine is not mine, she needs a bath, right
    Last edited by camaross1; 09-14-2010 at 12:42 PM. Reason: add

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    Senior Member 00z28bubba's Avatar
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    6 speed 02 ls1 with ls6 intake. sounds like some nice numbers but also the ls6 intake is giving you more power than the block difference would. not to mention the 6 speed which soaks up minimal power compared to a4. block is stronger due to casting, has better oil and coolant passages. but internally the bottom end is still ls1 parts. the ls6 intake and 6 speed make the 01 and 02 cars dyno queens more often than 98-00 cars. was there and actual performance baseline like a drag strip slip that reflected the above average power for 98-02?

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    Junior Member kibz28's Avatar
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    i have an ls6 block in my camaro and the guy that dynoed my car said they were very good numbers for that car i made 341hp 360ft on a mustang dyno
    02 m6, slp flowpac, slp mass, 80mm throttle body and slp underdrive. stock exhuast
    he showed me a comparasion with other ones and mine was higher

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    Senior Member 00LS12LS6Z28's Avatar
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    When standing in front of your car with the hood up, go to the headers on your left. Look above the pipe closest too you and you can see what number your heads are. 243 for LS6 and 241 for LS1. Other than that their are other marks on the block to help you. There are threads about this. I can't find them at this time though. Maybe someone can point you in the right direction.

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    Yeah baby! Yeah! silverWS6's Avatar
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    Quote Originally Posted by camaross1 View Post
    http://tinypic.com/r/2q3zvkh/7 compared to this pic, it looks like theres a little hat looking thing on top of it, and compared to the pic of my car, doesnt have that piece on top, so my thoughts are, i do have a LS6 block, thats cool, and im glad that shot of the bulls eye engine is not mine, she needs a bath, right
    That's tatertots engine!! Seems like there is no bullseye on your block though

    Quote Originally Posted by 00LS12LS6Z28 View Post
    When standing in front of your car with the hood up, go to the headers on your left. Look above the pipe closest too you and you can see what number your heads are. 243 for LS6 and 241 for LS1. Other than that their are other marks on the block to help you. There are threads about this. I can't find them at this time though. Maybe someone can point you in the right direction.
    That would just tell him if he has LS6 heads and not the block, I believe Terry has head and cam work done though

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    Member camaross1's Avatar
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    ls6 block

    Quote Originally Posted by 00LS12LS6Z28 View Post
    When standing in front of your car with the hood up, go to the headers on your left. Look above the pipe closest too you and you can see what number your heads are. 243 for LS6 and 241 for LS1. Other than that their are other marks on the block to help you. There are threads about this. I can't find them at this time though. Maybe someone can point you in the right direction.
    sir were not asking about ls6 heads, we all know ls1 is 241 and ls6 is 243, im already convinced my block is ls6, i dont have the bullseye, posted in pic

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    Senior Member tatertot91's Avatar
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    Quote Originally Posted by silverWS.6 View Post
    That's tatertots engine!! Seems like there is no bullseye on your block though
    Its cleaner now

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