LSX 454

[Muscle Master]

Originally Posted by SSNIGHTMARE

lsx block alone is $1800

So I'm guessing that you can use the parts from the LS3, not a bad price

[SSNIGHTMARE]

Originally Posted by Muscle Master

So I'm guessing that you can use the parts from the LS3, not a bad price

Not sure, but I don't think so. I built my own lsx for much cheaper than 14k though.

[CamaroSpike23]

Originally Posted by Muscle Master

So I'm guessing that you can use the parts from the LS3, not a bad price

Originally Posted by SSNIGHTMARE

Not sure, but I don't think so. I built my own lsx for much cheaper than 14k though.

yes and no. the LSX block will be made with the smallest cyl bore they have unless you specifically ask for a certain bore size. the LSX block can be bored all the way out to 511cubes.

yes... 511ci small block. thats 8.3L

http://videos.streetfire.net/video/S...I-in_88467.htm




so technically, you could pull the rotating assy from your LS3, order an LSX block with the same bore and swap it over.



14k for a turn-key lsx 454.

1800 for the block. not bad. it was 2500.

[zebra]

Originally Posted by UsedTaHaveA68

Not true. LS3/LS7/LS9/L99 are different animals than LS1/LS2/L76.

The former have rectangle intake ports, the latter have cathedral intake ports. Gen III intakes (LS1/LS2) will NOT bolt up to Gen IV (LS3/LS7, and I believe LSX). And actually, LS3 intakes are not interchangable with LS7 heads, and vice-versa.

but i think he was talking about the dimensions. they're basically the same size (the blocks are the same dimensions). he never said anything about interchanging GenIII & GenIV heads and intakes

and people take LS2s and put the LS3 heads, intake, & exhaust on them all the time

[383ss]

Originally Posted by CamaroSpike23

yes and no. the LSX block will be made with the smallest cyl bore they have unless you specifically ask for a certain bore size. the LSX block can be bored all the way out to 511cubes.

yes... 511ci small block. thats 8.3L

http://videos.streetfire.net/video/S...I-in_88467.htm




so technically, you could pull the rotating assy from your LS3, order an LSX block with the same bore and swap it over.



14k for a turn-key lsx 454.

1800 for the block. not bad. it was 2500.

ummm, not really sure what you are saying, but the LSX can go to 4.25" bore (which would be stupid to do) and can take a 4.5" stroke. thats 511 cubes, it's not just 'bored' to 511.

they come with a 3.990 bore from GM. Your machine shop bores it out to what you want.

[CamaroSpike23]

Originally Posted by 383ss

ummm, not really sure what you are saying, but the LSX can go to 4.25" bore (which would be stupid to do) and can take a 4.5" stroke. thats 511 cubes, it's not just 'bored' to 511.

they come with a 3.990 bore from GM. Your machine shop bores it out to what you want.

I try to simplify things for some members on here so I dont have to come back and explain every single thing.

but why would it be stupid to bore it out to 4.25"? youd still have your 0.02" in your cyl walls.

granted if im going for power, i wouldnt bore it all the way out like that but if I wanted to brag about having a 511ci small block.... I would.

[Robin Lawrence]

The LSX 454 Shares the same intake bolt pattern as the LS7

The LS3, L76 and L92 share the same intake pattern.

The LS1, LS2 and the LS6 all share the same intake pattern.

We are behind on the release of the LSX 454 at this time.

It should be worth the wait.

Robin

[2SSRS]

Originally Posted by Robin Lawrence

The LSX 454 Shares the same intake bolt pattern as the LS7

The LS3, L76 and L92 share the same intake pattern.

The LS1, LS2 and the LS6 all share the same intake pattern.

We are behind on the release of the LSX 454 at this time.

It should be worth the wait.

Robin

How long to go for the release and the tall deck block.

[PoleCat2SSRS2010]

Right now the only local source for LSX information down here in Houston has been the GMPP catalogue. It was a whole new language for me since I only knew Ford. Now I know what the options are for the other guy.
I like my chances with LSX7 parts the best. Only me and my machinist will know for sure the CID......
I just hope the rear end holds up.

[2SSRS]

I like the lsx tall deck part # 19166097 and 4.5" stroke and 4.185 bore and long rod 6.2+
and for heads the LSX-CT or lsx-dr and last a F.A.S.T. 102 mm intake as for cam later..

[TT C6]

Originally Posted by Robin Lawrence

We are behind on the release of the LSX 454 at this time.
It should be worth the wait.
Robin

That's an understatement.
The LSx 454 is going to be the SHIT for N/A performance.

I think adding a TVS 2300 to stock LS3's is going to be a nice solution for the street cars as well.

[Dentyneice]

I'm going to resurrect this post by asking what bore would be needed to make this a 388 CI 8.0 liter engine? I might skip the little things and save up for this upgrade first.

[02 WS6 TA]

Originally Posted by TT C6

The LSx 454 is going to be the SHIT for N/A performance.

You cannot imagine how amusing it is with a healthy dose of nitrous... or three.

[SSTony]

will the bigmouth 102mm TB mount up to a maggie?

[zebra]

Originally Posted by Dentyneice

I'm going to resurrect this post by asking what bore would be needed to make this a 388 CI 8.0 liter engine? I might skip the little things and save up for this upgrade first.

you mean 488ci? 388 is a 6.4L
i'd say determine how thin you're willing to make your cylinder walls & then stroke accordingly

Originally Posted by SSTony

will the bigmouth 102mm TB mount up to a maggie?

i seen where a guy custom-fabbed a setup like that. (or similar blower)

[Dentyneice]

488 oops. On another note, I noticed that there are short and long block 454's available. Which one would ensure easy part swaps with Ls3 items like LT headers?

[2SSRS]

If you buy the crate LSX 454 it come's with new LS7 heads and uses the D shaped EX port But if you go with a block and try to use ls3 heads i don't know if that will work as the heads are at not the same.