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Lets talk block for FI befor i buy...

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Old Sep 20, 2012 | 01:04 PM
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Default Lets talk block for FI befor i buy...

hey guys, was in the market for a new short block, i would really like to keep it aluminum but the guys at SDPC says there only good to about 650 rwhp??? how can that be true if theres ls3's, 2s, & some ls1s with stupid high numbers?

im looking for in the naborhood of 1000k rwhp with twins & would really want to stay aluminum again...im just about to buy and want advice...liiking for 408 + CI....lol but not 408...
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Old Sep 20, 2012 | 01:08 PM
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What happened to the search function on this forum? Does it not work?
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Old Sep 20, 2012 | 01:17 PM
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No I hit it sooo many times I broke it!
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Old Sep 20, 2012 | 01:18 PM
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We can build you an LS3 376 or 416 good to 900HP for $4799. You can also go with the LSa short block for $6639 good to 1000HP or the LS9 good to 1100HP for $8195. These will all make great aluminum block high HP motors for your build. Give us a shout if you have any questions on the builds.
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Old Sep 20, 2012 | 01:24 PM
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Originally Posted by ttranssam
No I hit it sooo many times I broke it!
LOL! Since the search button is now broken I am curious about the aluminum blocks aswell, But i played it safe and got a LQ4 iron block.
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Old Sep 20, 2012 | 01:28 PM
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Sleeve the aluminum block and you won't have to worry. ERL!
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Old Sep 20, 2012 | 01:33 PM
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dont have much time cuz being at work but last time i seen the cost of sleeving was around 2300 for darton sleeves but was for a ls1...? whats about the cost of erl???
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Old Sep 20, 2012 | 02:11 PM
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http://www.erlperformance.com/produc...locks-domestic
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Old Sep 20, 2012 | 02:32 PM
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I did an LQ4 block as well, with the LS3 crank
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Old Sep 20, 2012 | 02:33 PM
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AES also has a 410 shortblock for ERL or LSX blocks.
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Old Sep 20, 2012 | 08:55 PM
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after reading this thread I'm going iron and staying that way.

60-80lbs is not worth $2300.
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Old Sep 20, 2012 | 09:49 PM
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110# difference not 60-80
And a sleeved block, or ls2 block with do 900-1000 with minor work

IMO the aluminum 5.3 is the strongest block out there, it should take 12-1300hp, just run ALOT of boost, like 25-30#
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Old Sep 20, 2012 | 10:01 PM
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IMHO,

I would never use a LS3 or LS9 block for big boost after seeing the sleaves up close.

I ran a LS2 for 6 seasons at 1K rwhp before the sleaves started shadowing.
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Old Sep 20, 2012 | 10:04 PM
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so how big can you go with a ls2 block? 416ci seems nice, but now the one good offer i have on what seems like a badass deal seems scary...the 2 options were ls3 ls9 lol
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Old Sep 20, 2012 | 10:10 PM
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I would only do a 4.005 bore on a LS2-keep as much sleave material as possible.

I currently run a 4.005 bore on my iron block and have a set of Brian Tooley TFS 245's on it.
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Old Sep 21, 2012 | 12:40 AM
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Running an LS3 block on mine... plan on making over 1000whp. Couple of my friends run aluminum blocks as well... one with a aluminum stroker 403 in a TBSS, weighs 4500lbs, went 9.03 @ 153, you calculate the numbers.... aluminum blocks don't work, haha.
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Old Sep 21, 2012 | 07:14 AM
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I thought it was a little weird when sdpc said aluminum is only good to 650...kinda wanted to ask him y my lil forged ls1 made it into the mid 7s on 16lbs and was fine? Lol and that same motor is running boost in a bjddys car now too!
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Old Sep 21, 2012 | 07:44 AM
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Aes 390
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Old Sep 21, 2012 | 08:01 AM
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Originally Posted by ttranssam
I thought it was a little weird when sdpc said aluminum is only good to 650...kinda wanted to ask him y my lil forged ls1 made it into the mid 7s on 16lbs and was fine? Lol and that same motor is running boost in a bjddys car now too!
This makes no sense. You are not running mid 7's in the quarter on 16lbs with an LS1 unless you had it on a go-kart.

There are guys with 400+cube motors on 25+ psi and can't run mid 7's

Now if you say you ran mid 7's on 16lbs in the 1/8 mile, then you have a real problem. Boost wouldn't even be needed to run that time in the 1/8
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Old Sep 21, 2012 | 09:07 AM
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Originally Posted by 87silverbullet
This makes no sense. You are not running mid 7's in the quarter on 16lbs with an LS1 unless you had it on a go-kart.

There are guys with 400+cube motors on 25+ psi and can't run mid 7's

Now if you say you ran mid 7's on 16lbs in the 1/8 mile, then you have a real problem. Boost wouldn't even be needed to run that time in the 1/8
lol ha hell no, i wish!!! meant 347ci hp! haha mid 700rwhp...
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