in another website I read that some 01-02 fbodies came with a ls6 block from factory. has anyone else heard this before or even confirm this? they say the difference you can tell is the ls6 block is duller in color than the ls1 block.
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in another website I read that some 01-02 fbodies came with a ls6 block from factory. has anyone else heard this before or even confirm this? they say the difference you can tell is the ls6 block is duller in color than the ls1 block.
Some did come with the LS6 block but it had LS1 internals. You can tell by the number stamped on the block. The color part is just talk..
It is legit.
10% (roughly) from 2001 had the LS6 block.
25% (roughly) from 2002 had it.
Doesn't really matter that much...unless you plan on modding like freaking nuts.
where would it be stamped? I am just curiousQuote:
Originally Posted by Z28Thunder
would you think it could add value to your car if you were the select few to have it? being more rare than othersQuote:
Originally Posted by Mr. Luos
I forgot to ask too what number is for what block?
Nope.Quote:
Originally Posted by mangus2k1ws6
lol no. only a sleezy car salesman would try to get an extra buck by saying something stupid like thatQuote:
Originally Posted by mangus2k1ws6
There is a number on top of the block behind the driver side head. It's quite difficult to see -- you'll need a telescoping mirror and a flashlight. I think the LS6 block number is 12561168.Quote:
Originally Posted by mangus2k1ws6
if i remember correctly the LS1 blocks have a bullseye by the coolant crossover tubes and the LS6s do not
Easiest way to tell as far as i'm concerned
true.... i thought it would be cool to be one of the select few to have itQuote:
Originally Posted by justinmc978
that's dumb. maybe when I do a head and cam job on it, I could have a better chance seeing or is there another way find out by vin#?Quote:
Originally Posted by Z28Thunder
no. only other way is to look at it side by side to an LS1 block, LS6 blocks have a slightly darker cast than LS1s.Quote:
Originally Posted by mangus2k1ws6
above they said that isn't true. I did look at mine and my block is pretty dull in color but I never compared it to another beside itQuote:
Originally Posted by justinmc978
it is most certainly true, ls1 and ls6 blocks were cast in different plants (IIRC, one in the States/Canada and one in Mexico) this resulted in a noticeably different cast.Quote:
Originally Posted by mangus2k1ws6
edit: here is a pic and a website resource:
http://image.vetteweb.com/f/26670062..._crankcase.jpg
LS6 on the left and LS1 on the right. note the significant color difference.
http://www.vetteweb.com/features/vem.../photo_05.html
Does anyone listen?
Does your block have this little bullseye on it? i think there are like 4 on the front
Hard to see but only pic i got that shows it
http://img441.imageshack.us/img441/9949/dsc02546x.jpg
the ls6 has more cooling ports to correct.
Yep, the bullseye is true. mine has the bullseye, so therefore LS1 block. A friend of mine also has an '01 T/A, but his don't have the bullseye, therefore LS6 block :) He was actually the one who showed me that :)Quote:
Originally Posted by tatertot91Does anyone listen?
Does your block have this little bullseye on it? i think there are like 4 on the front
Hard to see but only pic i got that shows it
At least one person listened lol
easiest way to tell
the bulls eye was how i was able to tell as well i tried the whole telescoping mirror but after about 20 minutes i said f**k that
did you see the bullseye and try to find the casting # on the back hoping you still had the ls6 block? :lol:Quote:
Originally Posted by WICKEDLS1
so does the ls6 not have the bullseye at all?
correctQuote:
Originally Posted by davidz28
nope nobody said anything about the bulls eye when i first asked this question so when they did tell me i was like WTF why didnt anyone tell me that before
Just read this and I'm going outside at almost 1 am to check if I have a LS6 block.... Thanks tater!!
LS6 block here! :yay:
Not to piss on anyones parade, but this has been brought up many times. It is basically the most irrelevant thing ever. I think everyone here is just interested as a basic fyi which is great. I just hope that no one ever really gives a shit about this because its not important. The only semi noteable difference is slightly better oiling. Thats it, LS6 isn't stronger in any respectable way. If you're serious about building up these motors that isn't going to be a determining factor in any way.
I've never heard that the LS6 has better cooling then the LS1. Since you never hear anyone having cooling problems with an LS1 that can be resolved with an LS6 block, again I would say this is irrelevant.
Doesnt make a difference in performance that is true, but there is nothing wrong with being a little curious about what block you have. Just another little fact you can learn your car
From everything I have read, my best recollection is that the LS6 block's primary difference is additional windage between the internal cavities.
