ttranssam

iTrader: (10)

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...

djfury05

iTrader: (30)

What happened to the search function on this forum? Does it not work?

ttranssam

iTrader: (10)

No I hit it sooo many times I broke it!

thompson

iTrader: (4)

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.

zapp109

iTrader: (13)

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.

djfury05

iTrader: (30)

Sleeve the aluminum block and you won't have to worry. ERL!

ttranssam

iTrader: (10)

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???

djfury05

iTrader: (30)

http://www.erlperformance.com/produc...locks-domestic

Sweet_SS

I did an LQ4 block as well, with the LS3 crank

N2OBaby

AES also has a 410 shortblock for ERL or LSX blocks.

Cronic_Moronic

after reading this thread I'm going iron and staying that way.

60-80lbs is not worth $2300.

Grr

iTrader: (2)

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#

eb02z06

iTrader: (18)

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.

ttranssam

iTrader: (10)

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

eb02z06

iTrader: (18)

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.

westtexasbuff

iTrader: (40)

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.

ttranssam

iTrader: (10)

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!

Tirefire

iTrader: (1)

Aes 390

87silverbullet

iTrader: (11)

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

ttranssam

iTrader: (10)

lol ha hell no, i wish!!! meant 347ci hp! haha mid 700rwhp...