kwman

For those have crammed the LS1 into the FD, which cubic inch LS1 did you use? the 383, 370, or 402? Also, which displacement did you get, the 5.3, 5.7, or 6.0 and which would work the best? I'm sorry for such newbish question, so in compensation for answering you will recieve free punch and pie.

Rxmfn7

iTrader: (4)

Where did you get these numbers from?

silver93

I'm pretty sure there is a forum dedicated to LS1s in the 7. Not sure of the site.

WaLieN

The LS1 is a 347c.i./5.7L V8 (pushrod/all aluminum).

kwman

I apologize if I posted in the wrong section. Those numbers may be completely innacurate, I'm so new to the LSx motor I might be completely off my rocker, i just keep seeing 6.0, 5.7, 402 etc etc. I'm just trying to get a list together of the possible options i may have. I'm sorry for my ignorance...punch and pie?

Klar

LS1 is a 5.7 347ci V8. You can stroke it to about 383 with a 4'' crank. You cannot bore it out for **** at all. To get a larger bore you have to resleeve it with a Darton kit. Then you can get up to a 454ci I believe.

I'm aiming at a simple 427 build. 4'' crank with 4.125'' bore. I haven't started even tearing my car apart yet though.

A good source of ls1 info is ls1tech.com

its66

iTrader: (2)

Any interest in the new LS-7 engines? They are expensive but pretty impressive. I'm trying to get a deal worked on some of them for marine and aviation applications.

GsrSol

LS1 and LS6 are 5.7

LS2 is 6.0 which is a 402ci

LS7 is 7.0 which is a 427ci I think

The truck motors come in 5.3 and 6.0 and are very similar to the LS1 but have iron blocks.

wingsfan

LS2 is indeed 6.0L, but is 364.3 CID. Most people would call it a 370.

A 402 is essentially 6.6L

silver_7

What kind of deal are we talking about.....I might know two people that would want to invest.

silver_7

oh yea as far as the tranny for the LS7....would u use a t-56 as well or is it a different tranny. Just wondering since its a new motor and all if everything would line up the same.

wingsfan

How about the bargain basement price of $13595

http://www.paceparts.com/index.asp?P...&ProdID=154032

With no PCM, no dry sump tank, and no belt driven accessories to boot. What a deal.

NAFC3S

whats the group buy in price????

wingsfan

What group buy in?

GM is only making a couple hundred of these engines, and most of them are already spoken for (going into Z06s).

I'd guess that it will be tough to get your hands on a crate engine for awhile, and even if you can buy one you'll pay quite a bit for it. And then you'll need a standalone fuel computer to run it as they haven't released the LS7 PCMs yet, and there are no tuning options that will support reflashing yet.

It looks like it will be a great motor, but there are more palatable options if 7.0L+ of displacement is your thing. There's resleeving an LS1 (up to 4.2" bore), resleeving an LS2 (up to 4.165" bore), and a new World Products LSx based block (4.125" bore) coming out in the fall (debuts at SEMA in a few weeks). All of those will run you significantly less than an LS7 crate engine will, and you can run them off of an LS1 or LS2 PCM.

Of course, the best bang for the buck is probably adding a 4" crank to an LS2 to get a 402.

The LS7 is nothing more than an impressive motor for a factory release. You can make more power much cheaper with components that are already available. You'd end up paying a lot just to say you have an LS7 in your car.

Just my $0.02

Klar

The block alone is somewhere near 8k. What, you thought the newest production engine for Z06 would be cheap? Its based mainly off the c5r block if I remember correctly. Thats why I'm looking at a Darton MID Block. Far cheaper(3.2-3.5k) and lets you go bigger than 427. A mild setup on a formentioned based block is usally 530-550rwhp depending on little factors. Go big and 600 is not that far out of reach. Then there's always no2 and boost...

People need to drop the hype of this new block. Until it gets to be a "reasonalbe" price, it'll never be fesable. Aren't the dementions(sp) different, thus making it not fit so well?

wingsfan

It's not for sale as an individual part yet. There's no part number yet (at least it hasn't been released). You can order the heads and intake already. Those part numbers have been available for a few months now.

It is. A c5r block is ~$6k. I doubt the LS7 block will be more than that. The rumors I've seen are that the block will be about $2k, but of course, it's not avaialbe yet (that I know of).

Plus the price of the core or stress relieving. That's assuming that you have Steve Demerijan resleeve it for you, which is a good idea. That's the route I will most likely take.

The LS7 heads and intake make the engine taller than the LS1/2/6, so fitment in an FD could be tricky. Nothing a custom hood, or a new engine cradle won't fix.

The hype is amusing. There is some merit to it though. Factory Titanium rods and valves is pretty slick. But like we've both pointed out you can go bigger/make more power for less.

I'm waiting to see how much the WP block will be. Probably around $4k. The drawback of the WP block will be that it has 5 studs/bolts per cylinder, which will require using a WP LSx head.

BTW Klar, my "bling" showed up at customs today. Hopefully they'll release it soon so I can fondle it.

Klar

CALL ME WEN YOU GET IT!

Sweet!