LS2 vs. LS6 Engine

**maquino** · 07-21-04 01:34 PM

Scroll down this thread:

http://www.ls1gto.com/forums/showthread.php?t=4598

to find a very interesting chart comparing the hp and torque of the LS6 (currently in the CTS-V) with that of the LS2.

The LS2 is being added to the Pontiac GTO for the 2005 model year. Wonder why GM didn't do the same thing for the CTS-V, as the LS2 seems to be clearly superior to the LS6 (particularly in its torque curve).

M.A.

**gothicaleigh** · 07-21-04 02:19 PM

I've been hearing that the V will receive the LS2 in it's 2006 model year (plus something a bit more

).

**GNSCOTT** · 07-21-04 03:39 PM

Its got a little more low end and peaks at 400ftlbs. I don't think it will be much quicker than the LS6 though. The V NEEDS at least 450hp.

**Shinkaze** · 07-21-04 04:29 PM

Originally Posted by GNSCOTT

Its got a little more low end and peaks at 400ftlbs. I don't think it will be much quicker than the LS6 though. The V NEEDS at least 450hp.

If the V had 450 youd be saying it needs 500

**GNSCOTT** · 07-21-04 05:35 PM

It has to compete with the M5 which is going to have 500hp, but I would be happy if it keeps up with a standard Vette, and I think with the weight disadvantage, 450 hp would do it.

**StealthV** · 07-21-04 05:47 PM

Originally Posted by maquino

Scroll down this thread:

http://www.ls1gto.com/forums/showthread.php?t=4598

to find a very interesting chart comparing the hp and torque of the LS6 (currently in the CTS-V) with that of the LS2.

The LS2 is being added to the Pontiac GTO for the 2005 model year. Wonder why GM didn't do the same thing for the CTS-V, as the LS2 seems to be clearly superior to the LS6 (particularly in its torque curve).

M.A.

Welcome to June 9th, post #9

--> Yay, I used the search button!

**thebigjimsho** · 07-21-04 08:51 PM

Originally Posted by GNSCOTT

It has to compete with the M5 which is going to have 500hp, but I would be happy if it keeps up with a standard Vette, and I think with the weight disadvantage, 450 hp would do it.

I don't think the V needs 500hp to keep pace with the new M5. With about 200 less pounds to tow around and already having more torque than the new M5, I would guess just getting to 450hp with an accompanying boost in torque would very easily have us saying buh-bye.

Nevermind that for not that much, we current, soon to be obsolete, V owners can easily keep pace in the good ole aftermarket. I don't think I'm going to be able to just go out and get an '06. :madtalkin

**StealthV** · 07-21-04 09:00 PM

The LS6 is a positive wouldn't you say? With low production in both the Z06 and CTS-V and the last "350" cubic inch engine from GM, it will probably have a little bit more of collector appeal in 30 years. In 2005, the last, great LS6 power only comes in a V.

**Shinkaze** · 07-21-04 09:43 PM

Originally Posted by StealthV

The LS6 is a positive wouldn't you say? With low production in both the Z06 and CTS-V and the last "350" cubic inch engine from GM, it will probably have a little bit more of collector appeal in 30 years. In 2005, the last, great LS6 power only comes in a V.

Actually the LS1/LS6 are 346 Cu.i.

... but I guess thats why you put "quotes" around 350?

**StealthV** · 07-21-04 10:07 PM

Like K&N filter horsepower claims, I rounded up, lol.

**Devil_concours** · 07-22-04 02:19 AM

i think i heard somewhere that they basically stopped after 6000rpm to keep the ls6 owners happy (eventhough it shows 6000+rpm on the dyno graph).

**T_Dogg8** · 07-22-04 07:43 AM

Originally Posted by StealthV

Welcome to June 9th, post #9

--> Yay, I used the search button!

i just thought it was deja-vu

**GNSCOTT** · 07-22-04 05:05 PM

I never said it had to have 500 to keep up with the M5, I'd say 475 to keep up, maybe slightly better it, but like I said, I would be happy with standard vette power in a V and that number is 450hp, 475 would give me a stiffy though.