LS6427

iTrader: (2)

Yes.....with a good tune.....lol

Single turbo.....

I'm just wondering, last minute here....if I should go aluminum or iron block.

I know the iron will be fine at 1,000......I'm wondering about the LS2 and stock sleeves with a 385ci....

???

.

87silverbullet

iTrader: (11)

Mark Kohler did it.

LS6427

iTrader: (2)

Mine will be a 100% street car.....highway pulls only.

So a 4.005 bore on stock sleeves leaves plenty cylinder wall and gasket left?

1fast bird

iTrader: (22)

Are you getting a 385 from AES? Fireball on here had a 366" ls2 and pushed it to near 1700 hp. That would have been 4.005"+ bore and from what I understand didn't have many "tricks" done to it, if any.

Fb0dy0nly

iTrader: (10)

https://ls1tech.com/forums/forced-in...tor-today.html

LS6427

iTrader: (2)

Thanks.......iron it is.......no reason to risk it. I was just curious, I figured I'd rather have a lighter block up front if it was strong enough. One small detonation and it'll be toast.

Thanks.

.

dschmittie1

iTrader: (64)

^^ you do realise that car was making about 1700 hp when that happened to that ls2.

a 385 with pinned mains and the dragon slayer crank will easly do 1000rwhp and have no issues at all

Fb0dy0nly

iTrader: (10)

hey no problem, some people will tell you that an ls2 will usually suffice for 1khp builds but its not the best option if you're looking for reliability IMO. You could always sleeve the ls2 and then its almost bullet proof!

LS6427

iTrader: (2)

I'm more concerned about the sleeves cracking or not holding up because they are stock sleeves and they'll be thinner than stock bore......


.

LS6427

iTrader: (2)

I'm trying to stay away from re-sleeving..........trying to do a budget build and hold 1,000 RWHP.

If iron is the best....I'll do it. I'll most likely be sending a new 3.825" crank to AES so they can put together a 390ci. The only thing they don't have is the crank.......

.

ProTreeRacing

iTrader: (4)

We did a ls2 4.005, stock crank, 11:1 and made 1100 to the wheels through a glide, only issue was the crank moving around, forged crank and we would probably still be running that combo.

LS6427

iTrader: (2)

What gas at that compression?

I was considering going 10:1 cr and 15-18psi. I have 101 and 103 octane available all over the place down here to run either one full time. South Florida heat.

.

87silverbullet

iTrader: (11)

Dude, 15-18 isn't even going to tickle an LS2 block. I'd run the LS2 in a heartbeat. I wouldn't even be worried unless I was going over 25 psi. Even then, I would have head gasket issues on my mind, not the block

Mark is Fireball on here.

billetproof97'

Holy shat

LS6427

iTrader: (2)

Well damn....maybe aluminum than.

LOL.

.

Bobsmyuncle

iTrader: (32)

we have a 4.003" ls2 block and blowby gets real bad at 19-21psi.

motor makes 1100ish.

900 at the tire

stock sleeves just wont do it

BOBS99SS

iTrader: (2)

I kinda agree with silverbullet,but if it was my build and i was looking for 1000hp build i would do it right the first time, or just do a budget 5.3 build and still have a fast car lol,

N2OBaby

Why not an Iron 370 or 390(based on the LQ4/9)?

LS6427

iTrader: (2)

I guess I'm just worrying about the extra weight up front too much. For a 100% street car just doing straight line highway roll races/pulls, I shouldn't even feel the difference. I also don't go tearing around corners like crazy......so maybe iron will be fine.

I have to make the call tomorrow to order my engine and have my crank and rods sent to the builder......AES 390ci LQ9.

I have the crank (3.825" Callies) and Manley rods. They are waiting on cranks so they can begin building 390's again....I found 4 brand new ones.

.

LS6427

iTrader: (2)

Callies 3.825" forged crank is only $660.00

I'd rather have forged than factory stock......since I'll be flirting with going over 1,000 RWHP.

Little piece of mind. And a better engine for boost with 390ci.........

.