Generation IV Internal Engine - 440 ls7

I'm thinking about tsp 440 ls7 and I want to know what be horse power rating is for a ls7 so does anybody really know?

Thanks

6 speed you will make 625+ with tfs auto your make 550+

6 speed you will make 625+ with tfs auto your make 550+

Damn, didn't know it was that easy...:eyes:

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.

603 hp and 560 na vengeance did on a ls7 440 vette. so 600+ sorry

well I hve an Idea of what I want to make but that's not the problem I want to know if anybody knows how much hp the ls7 block will handle or should I go lsx

well I hve an Idea of what I want to make but that's not the problem I want to know if anybody knows how much hp the ls7 block will handle or should I go lsx

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.

well I hve an Idea of what I want to make but that's not the problem I want to know if anybody knows how much hp the ls7 block will handle or should I go lsx

Once you break 1,000 hp, you're entering shaky waters for any of the aluminum LSx blocks.

How much RWHP do you want to make?

If its a NA build I would def run the ls7. What is your plan for the car?

Its all in the top end. Heads and cam will determine how much power you make, the cubic inches gives you the potential.
We've got an LS7 457 that will make power in the 750+ range.

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.

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...

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...

:nod: All excellent points !! We can get more cubes safely from an LS7 (457) and re-sleeved LS2 as well. (460)

:nod: All excellent points !! We can get more cubes safely from an LS7 (457) and re-sleeved LS2 as well. (460)

Really?????

460 ls2 sounds very nice. I would assume that would be an NA only build?

Sorry for the :hijack:, 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).

We can do a sleeved ls2 460 that will handle the 200 shot but no bigger. The LS7 457 is n/a only.

been looking at erl stuff lately.... thinking about a 440 ls2 is about as big as i can go for that kind of shot

been looking at erl stuff lately.... thinking about a 440 ls2 is about as big as i can go for that kind of shot

You need a truck load of money for any ERL aspirations, we can get you very close to the same for less money

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 :secret2: