454ci from a LS7 block???
Joined: Oct 2006
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From: Webb City, MO...out in the garage
Originally Posted by slow95z
am i the only person here that thinks the best option is to just hold out for the LSX block?
that's kinda what i was thinking, but i'm not in his shoes, so i dunno....personally i'd rather keep the alluminum block, but then again, that LSX is bad.....
On The Tree
Joined: Jun 2006
Posts: 139
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From: Kaleva, Michigan
Originally Posted by 2000_SS
that's kinda what i was thinking, but i'm not in his shoes, so i dunno....personally i'd rather keep the alluminum block, but then again, that LSX is bad.....
Originally Posted by verve_v
There's going to be an alluminum version of the new lsx block first and then an iron block a little later on i do believe.
They are "talking" about doing an aluminum. That is all we know.
i personally would rather run an iron block but i guess its for 2 reason. 1st being that i always had iron back in the day and never had any trouble but i have busted about 4 aluminium blocks and second reason is that i love my power adders.
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On The Tree
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From: Texas / 427ci F1R 1,002 rwhp/928 rwtq
There have been a lot of people saying just go with a 427, but what makes that the magic number. I am relatively new to cars, but in the boat world displacement is king, besides the cost of going a little bigger is minor compared to the overall cost of the project. Why not squeeze every last CI out of the motor? Steve at R.E.D. mentioned that he can do a LS2 MID dry sleeve 4.2" bore x 4.25" stroke. Most people would say the car is fast enough - I guess I am not most people. My guess is most of the subscribers to this forum are not either. Still waiting to fund the project and may just go with a tall deck Warhawk. We are certainly living in an exciting time period when it comes to lsx development.
Originally Posted by john_sblendorio
There have been a lot of people saying just go with a 427, but what makes that the magic number. I am relatively new to cars, but in the boat world displacement is king, besides the cost of going a little bigger is minor compared to the overall cost of the project. Why not squeeze every last CI out of the motor? Steve at R.E.D. mentioned that he can do a LS2 MID dry sleeve 4.2" bore x 4.25" stroke. Most people would say the car is fast enough - I guess I am not most people. My guess is most of the subscribers to this forum are not either. Still waiting to fund the project and may just go with a tall deck Warhawk. We are certainly living in an exciting time period when it comes to lsx development.
Originally Posted by john_sblendorio
There have been a lot of people saying just go with a 427, but what makes that the magic number. I am relatively new to cars, but in the boat world displacement is king, besides the cost of going a little bigger is minor compared to the overall cost of the project. Why not squeeze every last CI out of the motor? Steve at R.E.D. mentioned that he can do a LS2 MID dry sleeve 4.2" bore x 4.25" stroke. Most people would say the car is fast enough - I guess I am not most people. My guess is most of the subscribers to this forum are not either. Still waiting to fund the project and may just go with a tall deck Warhawk. We are certainly living in an exciting time period when it comes to lsx development.
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Originally Posted by john_sblendorio
Why not squeeze every last CI out of the motor?
What I was saying is don't follow "there's no replacement for displacement" in blind dogma. It's a wonderful guideline, but not some sort of a law of physics. It would really suck if a smaller displacement car blew your big-inch car away on the street, and he paid half as much, you know? Take a look at what people are doing in the dyno thread. You don't want a bigger-inch motor making less power than a smaller displacement engine is all I was saying.
You say you're new to cars, but recognize the wonderful things happening in the LSx world. Well, one of the great things is that some of the old ways of thinking are sometimes getting revised.
If you're honestly looking for the ultimate street car, I would talk with the sponsors like W2W. Tell 'em you have a fetish for big inches.
...Well, I don't know if that's exactly how I would word it, but....
Reason for smaller 427 is with smaller stroke you will be able to rev the motor. And RPM makes power as well and it will be far more reliable. And reason for not using the LSX block is it is going to be huge and will cause fitment issues in most cars the haeds will start running into things...
Nate
Nate
Bore size If you are going to run a two or three hundred shot of nitrous, I would recommend 4.150" max. bore size on the dry liner. That will leave a thick enough sleeve so you don't end up with problems.
The MID sleeves are much stronger. You can run those out to 4.200" with nitrous.
The MID sleeves are much stronger. You can run those out to 4.200" with nitrous.
Originally Posted by Quickin
Steve,
Did you say that 4.185 will be strong enough for N/A, but not if you're gonna spray it with say a 200 shot?
.
Did you say that 4.185 will be strong enough for N/A, but not if you're gonna spray it with say a 200 shot?
.
__________________
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
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Joined: Dec 2001
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From: Ft. Lauderdale, FL, USA
Originally Posted by Steve - Race Eng
If you are going to run a two or three hundred shot of nitrous, I would recommend 4.150" max. bore size on the dry liner. That will leave a thick enough sleeve so you don't end up with problems.
The MID sleeves are much stronger. You can run those out to 4.200" with nitrous.
The MID sleeves are much stronger. You can run those out to 4.200" with nitrous.
4.200 bore and 4.200 stroke for a 466ci
or
4.200 bore and 4.100 stroke for a 454ci
.
Originally Posted by Quickin
So an LS1 block, instead of using the LS2 or LS7 block, with the MID sleeves will be very strong with a 200 shot if you went:
4.200 bore and 4.200 stroke for a 466ci
or
4.200 bore and 4.100 stroke for a 454ci
.
4.200 bore and 4.200 stroke for a 466ci
or
4.200 bore and 4.100 stroke for a 454ci
.
Is the LSX the same as the LS7X Warhawk block, this one here... http://www.gmhightechperformance.com...k_head_review/ ? Cause that looks bad ***. But, from World Products it'll prolly cost north of $10k for the bare block.
Lol, wait, guess I don't know anything about block costs. They say it retails for $3999, and will support 454 cubes. That's deff. the one I would go with. Pricey as hell, but looking at that car, i'd guess this guy's got it.
Lol, wait, guess I don't know anything about block costs. They say it retails for $3999, and will support 454 cubes. That's deff. the one I would go with. Pricey as hell, but looking at that car, i'd guess this guy's got it.
Originally Posted by Quickin
So an LS1 block, instead of using the LS2 or LS7 block, with the MID sleeves will be very strong with a 200 shot if you went:
4.200 bore and 4.200 stroke for a 466ci
or
4.200 bore and 4.100 stroke for a 454ci
.
4.200 bore and 4.200 stroke for a 466ci
or
4.200 bore and 4.100 stroke for a 454ci
.
Ls2 Mid Darton now has LS2 large bore MID sleeves in stock (4.175" to 4.200"). I have done a couple of them already. They will have an LS7 MID sleeve shortly which will go from 4.125" to 4.200". They will replace the current LS2 MID sleeves as they will work in both blocks.
I prefer the LS1 block for high nitrous or boosted MID installations because they have solid main webs and are much less susceptable to cracking between the cylinders than the LS6 block. In fact I have never seen a cracked MID LS1 block.
Steve
I prefer the LS1 block for high nitrous or boosted MID installations because they have solid main webs and are much less susceptable to cracking between the cylinders than the LS6 block. In fact I have never seen a cracked MID LS1 block.
Steve
Originally Posted by Beast96Z
Yup! I think they may have even finished the LS2 MID, put don't quote me on that one.
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Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
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From: Elmhurst, IL (Chicago Suburb)
Originally Posted by 09CPTN
Is the LSX the same as the LS7X Warhawk block, this one here... http://www.gmhightechperformance.com...k_head_review/ ? Cause that looks bad ***. But, from World Products it'll prolly cost north of $10k for the bare block.
Lol, wait, guess I don't know anything about block costs. They say it retails for $3999, and will support 454 cubes. That's deff. the one I would go with. Pricey as hell, but looking at that car, i'd guess this guy's got it.
Lol, wait, guess I don't know anything about block costs. They say it retails for $3999, and will support 454 cubes. That's deff. the one I would go with. Pricey as hell, but looking at that car, i'd guess this guy's got it.
Ls1 Ls2 The LS1 sleeve is different from the LS2 LS7 MID sleeve in seating depth. GM raised the floor of the coolant jacket about an inch on the LS2 and LS7 blocks. The two sleeves are the same overall length and dimension except for the seating dimension which has been shortened to work in the LS2 and LS7 blocks.
Steve
Steve
Originally Posted by 52172
Steve what is the difference between the ls2 mid sleeve and the ls7 mid sleeve and are they both compatible with an ls1 block? Thanks
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Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net