Kevin Doe

iTrader: (1)

Can you tell by the VIN? In particular this vin:

VIN: 2G1FP22G422118686

ram09

iTrader: (1)

THE LS1 IS AN LS6. The difference is in the heads 241 castings for LS1 and 243 for LS6

Toasty

iTrader: (13)

No, an LS1 is not an LS6. There is a difference between the blocks, and I believe that is what he is asking.

For the original question: check the forum FAQ.

jeffstar

iTrader: (6)

https://ls1tech.com/forums/showpost....86&postcount=8

You beat me too it.

Kevin Doe

iTrader: (1)

Thanks guys!

sciff5

iTrader: (1)

Is there any real advantages to having an LS6 block compared to an LS1 block?

I am thinking about getting a 98 or 99 Ls1 but I think I heard these werent as good, why is that?

BLKWS.6

If its a standard, 01-02 got:LS6 clutch, hydrolics, and carbon lined blocker rings. 98-00 got LS1 stuff and paper lined syncros

The 98-00 had looser main bearing tolerances, worse rod bolts, worse oil pump, an EGR(not present on 01-02) and an LS1 manifold (loses about 10whp to the LS6 manifold, but they DID get a bigger cam, still not QUITE enough to be = in hp on average).

The 02's got a napier faced oil ring which helped with oil consumption if you are doing a lot of high rpm/low load (cruising at 3,000rpm at 30mph) driving.

This is the differences in the powertrain. Oh, starting in 99 I belive GM switched from the Auburn to the Torsion differential, it may have been 00, but I think it was 99 when they did that.

LS6 block is in 01-02's randomly, maybe 25% or so of them. It allows better bay-bay breathing and can cut down MARGINALLY!!!! on oil consumption because of this (an oz ever 3K miles? lol) and some ppl think its worth a couple hp, which would be hard pressed to be proved either way.

35th SS

iTrader: (2)

its been ask so many times before.try the search if it works.only advantage is better cooling passages.

Long Beach

iTrader: (51)

I read something on here before about this. I found out i have an ls6 block in my car. Thought my block was dirty because it was darker color than my friends ta. There is also some bullseye thing on the passanger side at the base of the head thing to look for, but dont know how valid that is.

LS1FC3

iTrader: (2)

Did the later LS1 come with a LS6 cam? I have an 04 short block and I want to install LS6 heads and cam. I thought some of the later LS1s were prett close to the LS6s.

Long Beach

iTrader: (51)

Im not 100% sure but i think that the earlier ls1 had a bigger cam than the later 2002 ls1's. I know that just because mine is an ls6 block there is no hp increase and it did not come with ls6 cam or heads. If i were you i would not waste my time with the ls6 cam i would do 224/224 cam it runs good and has power. Although if i wasnt in cali i would have went with the ms4 or something in that range.

LS1FC3

iTrader: (2)

Would it be alright on LS6 springs? I was thinking of just getting some assembled LS6 heads and saving money in that respect.