Some 01-02 fbodies came with a ls6 block

[WICKEDLS1]

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

[tatertot91]

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?

[davidz28]

so does the ls6 not have the bullseye at all?

[tatertot91]

so does the ls6 not have the bullseye at all?

correct

[WICKEDLS1]

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

[silverWS6]

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!

[Bouvers]

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.

[tatertot91]

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

[pajeff02]

From everything I have read, my best recollection is that the LS6 block's primary difference is additional windage between the internal cavities.