440 ls7
Damn, didn't know it was that easy...
there is a hell of a lot more too it than that. It all depends on your combination. Heads, intake, cam, compression, and a million and a half other things will determine your RWHP.
there is a hell of a lot more too it than that. It all depends on your combination. Heads, intake, cam, compression, and a million and a half other things will determine your RWHP.
Teching In
Joined: Mar 2009
Posts: 17
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For the money the LSX block is by far the strongest block on the market. It can withstand anything you throw at it and now they offer a tall deck! Im building an LSX 440 and wanting to get 700hp n/a.
How much RWHP do you want to make?
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TECH Fanatic
Joined: Nov 2004
Posts: 1,251
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From: Tuscaloosa, AL.
From what I understand, the LSX blocks are typically used for power-adder/boosted applications.
Maybe I am wrong, so please feel free to correct me.
Another consideration is the additional wieght of an LSX IRON block. The LSX block is 100lbs heavier than the lS1. This is a significant amount of wieght to be adding to the nose of the car. People spend Thousands of dollars on lightweight wheels, drag-brakes, k-members, ext.. to take 100lbs of the nose of their car.
LS2/LS7 blocks have taken people deep into the 9s... and I am sure they have been deep into the 8s as well.
Bigger is not always better. Don't just blindly buy an LSX block w/o considering the other factors...
Why would you do that? The ls7 block is more than adequate for an NA build of that caliber.
From what I understand, the LSX blocks are typically used for power-adder/boosted applications.
Maybe I am wrong, so please feel free to correct me.
Another consideration is the additional wieght of an LSX IRON block. The LSX block is 100lbs heavier than the lS1. This is a significant amount of wieght to be adding to the nose of the car. People spend Thousands of dollars on lightweight wheels, drag-brakes, k-members, ext.. to take 100lbs of the nose of their car.
LS2/LS7 blocks have taken people deep into the 9s... and I am sure they have been deep into the 8s as well.
Bigger is not always better. Don't just blindly buy an LSX block w/o considering the other factors...
From what I understand, the LSX blocks are typically used for power-adder/boosted applications.
Maybe I am wrong, so please feel free to correct me.
Another consideration is the additional wieght of an LSX IRON block. The LSX block is 100lbs heavier than the lS1. This is a significant amount of wieght to be adding to the nose of the car. People spend Thousands of dollars on lightweight wheels, drag-brakes, k-members, ext.. to take 100lbs of the nose of their car.
LS2/LS7 blocks have taken people deep into the 9s... and I am sure they have been deep into the 8s as well.
Bigger is not always better. Don't just blindly buy an LSX block w/o considering the other factors...
All excellent points !! We can get more cubes safely from an LS7 (457) and re-sleeved LS2 as well. (460) TECH Fanatic
Joined: Nov 2004
Posts: 1,251
Likes: 0
From: Tuscaloosa, AL.
460 ls2 sounds very nice. I would assume that would be an NA only build?
Sorry for the
, but Blanco - What is the largest CI ls2/ls7 motor you would recommend for a large N2O shot? (say 200-300, with a good tune). 
they aren't as bad as i had heard.... 6 bolt std. deck blocks start about $3000 plus core. thats less then the old mti dry sleeves were back in the day... and your engine builder is mine and is alot closer to me then you, lol
I was talking to him about one for another build, a 485 w/ FI, it was way more than 3k though..LOL and they dont just put those in anyone hands either 
Yea being in Houston you might be a little closer...LOL
No 8.25% up here though
Yea being in Houston you might be a little closer...LOL
No 8.25% up here though
Last edited by 99blancoSS; May 6, 2009 at 11:34 AM.
