how much hp will a ls3 block handle
Andrew
I remember reading back 8-10months ago any thing over 800rwhp no way a 4 bolt head will stay down... guys running mid and low 5s all day with stock casting 4bolt heads.. blocks are failing before head gaskets?
Non filled ls2 block street driven looking to go 8.6-8.40 on 24-26psi.. what will fail block or gasket..
Non filled ls2 block street driven looking to go 8.6-8.40 on 24-26psi.. what will fail block or gasket..
9 Second Truck Club
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I would think that with deck plugs or welding as you mentioned, you could easily beef that area up with good support and possibly be fairly reliable with some serious cylinder pressure.
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there is a local va shop that sleeves the alum blocks and claims that they will take 1500 hp which is beyond what I need
I'm going to try a 3.82 bore 4.3 iron block with a stock crank and wiseco pistons with manley rods and see if I can make it work on E85
I don't have the bucks to step up to an aftermarket block but I'd like to hear any feedback you all might have on the LS Next Dart block
its more affordable, but to me it's hard to understand how the old school splayed main caps are stronger than a 6 bolt stock design
the block should be lighter and of course the better windage and flow between the bays
thoughts?
I'm going to try a 3.82 bore 4.3 iron block with a stock crank and wiseco pistons with manley rods and see if I can make it work on E85
I don't have the bucks to step up to an aftermarket block but I'd like to hear any feedback you all might have on the LS Next Dart block
its more affordable, but to me it's hard to understand how the old school splayed main caps are stronger than a 6 bolt stock design
the block should be lighter and of course the better windage and flow between the bays
thoughts?
For those who missed it, this is what I was talking about. This is a VQ37 block but the same principals apply in the upper corners of the LS3 blocks. I can't find any pictures of the LS3 block but you get the point.
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The water jacket on the LS3 block is small. You only use 1 at each corner. It's not as difficult or time consuming as you think.
I see a lot of thoughts on liner thickness and failures, but has anyone seen or heard of issues with cap walk or other catastrophic failures using the LS3 blocks? I am thinking about switching over to an LS3 block with a stock stroke on my build but I am worried about the aluminum block strength. Planning on running up to 22 pounds with the S484. Not sure what power numbers that will produce.
Thread Starter
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I see a lot of thoughts on liner thickness and failures, but has anyone seen or heard of issues with cap walk or other catastrophic failures using the LS3 blocks? I am thinking about switching over to an LS3 block with a stock stroke on my build but I am worried about the aluminum block strength. Planning on running up to 22 pounds with the S484. Not sure what power numbers that will produce.
i feel now this block should be good to 1100whp or so, but i wont be needing to push it that hard
