CTS-V.....which engine to look for?
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CTS-V.....which engine to look for? Well Im considering looking into one of the older cts-v's (04-07) but I would like to get some details about which engine would be the best to look for (ls6 or ls2).
So far from what I understand the ls6 would probly be the one to go with if I was gonna stay stock or even stay N/A but thats not what I would want to do.
My main question is which of the two has a stronger bottom end in it in stock form? The .3 liter difference doesn't matter to me. Ill would probly end up leaving the engine stock and just slap on a turbo or supercharger along with exhaust and a tune. (keeping it simple since this would be a daily driver)
Also I thought that the ls2 was more similar to the ls6 and ls1 than to the ls3 and ls7 buy it is grouped with the ls3 and ls7 so if someone wouldnt mind shedding some light on that for me I would appreciate it.
If someone has a link to another thread that answers these questions that would also be great.
THANKS
So far from what I understand the ls6 would probly be the one to go with if I was gonna stay stock or even stay N/A but thats not what I would want to do.
My main question is which of the two has a stronger bottom end in it in stock form? The .3 liter difference doesn't matter to me. Ill would probly end up leaving the engine stock and just slap on a turbo or supercharger along with exhaust and a tune. (keeping it simple since this would be a daily driver)
Also I thought that the ls2 was more similar to the ls6 and ls1 than to the ls3 and ls7 buy it is grouped with the ls3 and ls7 so if someone wouldnt mind shedding some light on that for me I would appreciate it.
If someone has a link to another thread that answers these questions that would also be great.
THANKS
I would go with a LS2 block personally. Not that there is anything wrong with a 5.7 LS6. However with a LS2 you are getting a 4"bore not 3.90". That little difference will allow much more versitility as far as lower engine combinations, it will allow not only bigger heads, but bigger valves without shrouding, it will also allow you to go to a L92/LS3 style square port head. (if you choose so)
Who knows where you will be in the future. If you ever wanted to build it for whatever reason or put some different heads on you will kick yourself in the *** for not having a 4" bore.
Boosted LS6 is a great motor too but for the money I would take the cubes.
Who knows where you will be in the future. If you ever wanted to build it for whatever reason or put some different heads on you will kick yourself in the *** for not having a 4" bore.
Boosted LS6 is a great motor too but for the money I would take the cubes.
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Ok that is kinda of the way I was starting to lean anyway. Evidently 600 whp would still be pretty reliable with the ls2 which will probly keep me pretty happy since it would be a daily.
What is the difference in the ls2 that allows it to use the square port heads like the ls3? It has the cathedral port style heads stock doesn't it? Sorry I'm not real familiar with every detail of each of the ls engines.
What is the difference in the ls2 that allows it to use the square port heads like the ls3? It has the cathedral port style heads stock doesn't it? Sorry I'm not real familiar with every detail of each of the ls engines.
Evidently 600 whp would still be pretty reliable with the ls2 which will probly keep me pretty happy since it would be a daily.
What is the difference in the ls2 that allows it to use the square port heads like the ls3? It has the cathedral port style heads stock doesn't it? Sorry I'm not real familiar with every detail of each of the ls engines.
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Ok thanks for the info guys.
I was looking into the sts twin turbo kit and I like most things about it. 480 whp wth 5 psi. Adding in headers and exhaust modds would take it over 500 at the wheels i would think. what would it take to up the boost up to 8 psi or so...maybe even 10 to increase power to closer to the 600ish mark.
would the injectors that comes with the complete kit be enough or would it be better to just buy the base kit and then buy injectors seperatly and have a custom tune done?
I was looking into the sts twin turbo kit and I like most things about it. 480 whp wth 5 psi. Adding in headers and exhaust modds would take it over 500 at the wheels i would think. what would it take to up the boost up to 8 psi or so...maybe even 10 to increase power to closer to the 600ish mark.
would the injectors that comes with the complete kit be enough or would it be better to just buy the base kit and then buy injectors seperatly and have a custom tune done?
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Get some 317 heads to lower the compression ratio and maybe some thicker gaskets. I think that will put you at 9:1 or a little less. Anyhow it will be alot more on the safe side
I'd go for the LS2 car for both the larger bore, and also the newer PCM. The LS2 CTS-V has an E67 PCM in it. The Gen 3 PCM running the LS6 in the 04/05 cars is good, but the E67 in the 06/07 cars is far superior.
600?
Better stroke it and forge it with 6-10 psi.
Im not a fan of the STD kits, I'd look into a roots type blower for your kind of heavy car. More TQ lower in the RPM range. But that's just my .2 I'm not trying to get an a turbo/supercharger debate just my thoughts on a nice and fast luxury SEDAN. Lol
Better stroke it and forge it with 6-10 psi.
Im not a fan of the STD kits, I'd look into a roots type blower for your kind of heavy car. More TQ lower in the RPM range. But that's just my .2 I'm not trying to get an a turbo/supercharger debate just my thoughts on a nice and fast luxury SEDAN. Lol
i'd buy the base kit and get 83lb injectors & a real tune.in *** that lower compression stuff,my 06 gto aps car was putting down just under 600hp all day for 60,000 miles.lower compression & boost = GEN1 get with the ages
