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Old Feb 4, 2006 | 10:24 AM
  #21  
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Originally Posted by BLOWN ECS Z06
I am pretty sure the World Products Block as it is built specifically for a LS1/6 application, bolts up to everything just like a C5-5 motor would and in response to the other gentleman, building a 402 cid LS2 Motor to drop in your C5 is the hot ticket now for making big power (over 500rwhp) with AFR 225 heads, headers, cam, etc, and that will drop in and be compatible to a C5 with a few change over parts that come with the longblock to make the engine swap fairly simple if done by a pro!
im sure a 402 LS6 definatly makes some wicked power but there is something special about that magic number 427. i guess i may have to find out if the world products block can go to 427.
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Old Feb 4, 2006 | 10:33 AM
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Originally Posted by Cobra4B
I'd just build a 402 by adding a stroker crank to an LS2 block.


That is the way to go.
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Old Feb 4, 2006 | 02:18 PM
  #23  
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Originally Posted by 1996man
im sure a 402 LS6 definatly makes some wicked power but there is something special about that magic number 427. i guess i may have to find out if the world products block can go to 427.
The most economical route then for you would be a LS2 block with iron sleevs tha fit right in and a 4 inch stroker crank built by a PRO shop like MTI, ECS, etc., and giving you 427 cid for A TON cheaper than a C5R motor! That is the hot new reliable set-up right now for 427 cid LSX motors.

Even better yet if you can wait a short while will be when you can buy the bare LS7 Block which is built from the factory for 427 cid, as seen in the new C6 Z06s!!
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Old Feb 6, 2006 | 04:09 PM
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Originally Posted by BLOWN ECS Z06
The most economical route then for you would be a LS2 block with iron sleevs tha fit right in and a 4 inch stroker crank built by a PRO shop like MTI, ECS, etc., and giving you 427 cid for A TON cheaper than a C5R motor! That is the hot new reliable set-up right now for 427 cid LSX motors.

Even better yet if you can wait a short while will be when you can buy the bare LS7 Block which is built from the factory for 427 cid, as seen in the new C6 Z06s!!
i will have to look into where to get a LS2 block and who makes a bottom end kit for a 427 stroker out of it. how much would it be bored?
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Old Feb 6, 2006 | 10:50 PM
  #25  
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Hello,

The break down for the 427" LS2 is as follows:

LME Blueprinted, Balanced & Assembled Short Block
3 Axis CNC installation of Darton LS2 dry sleeves in your block.
Line Honed to low of spec with ARP main studs.
Surfaced w/ BHJ deck true fixture to optimal deck height for application.
Cylinders are bored 90deg. to the mains on CNC.
Torque Plate Honed according to application
Balanced to 1/4 oz. in. tolerance
Meticulous assembled with clearances adjusted accordingly.

Parts:
Eagle 4340 4.0" crankshaft
Callies 6.125" H beam rods w/ ARP 2000 7/16" bolts
Wiseco custom forged nitrous pistons w/ lateral gas ports (any comp. ratio available)
NPR stainless chrome top rings .047 .047 3mm (the rings offer less friction, excelent wear properties and will hold up to high heat conditions.
Federal Mogal 152M mains, Clevite CB 663 H rods and Dura Bond CH-23 cam bearings
ARP main studs
All oil galley and water jacket plugs installed.
The 427cu.in. LS2 shortblock discribed above is 5199.

A shorblock with shelf Wiseco nitrous pistons is 5049. and less lead time.

LME offers many options based on the goals for your car. Feel free to give us a call or email with any questions .

We look forward to talking with you.

Sincerely,
Bryan Neelen
LME
713-849-4505


this is using my LS2 bare block... this is a base SB 427ci engine that they offer, other parts manufactures can be substituted.
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Old Feb 6, 2006 | 10:53 PM
  #26  
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Hello,

Yes we are a complete custom engine machine shop. We have two 3 axis CNC mills to do the sleeve install, and all other related machinery.

A custom cam designed to your application is $380. The timing set that we use is the Rollmaster double roller w/ Torrington bearing and nitrided gears. The timing set is 139. For this price we will install and degree the cam. We also sell ported and shimmed oil pumps. The GM LS6 pump is 119. We can also install it for the same price.
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Old Feb 6, 2006 | 11:22 PM
  #27  
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Originally Posted by 9secondflat
i have talked with randy at drm, he says that every year darton claims to have a new way to sleave the block, a revised better than before. randy says they have only done 2 and only because the customer demanded it to be done. he said that with in 1 year the engines were toast. you may want to call him and get the story from him directly.
i think i know one of the guys whose motor blew up... since im local to DRM, i hear things...

And im the new owner of Blown ECS Z06's old monster of a car... an MTI built 427 Z07 package using a C5R block. just recently, i have had a retune done, oil analysis and compression tests, everything has came out to be in tip top shape! engine wear is down to a minimal and i drove her fairly hard this last summer... you cannot beat the performance of the C5R block! and imagine a tq/hp curve where your pushing upper 400s from 3K -7K rpms... love the N/A motors for this reason...
i would definitly suggest MTI or ECS for your work! they seem to be making a LOT of people happy on this board!
Aj
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Old Feb 7, 2006 | 12:26 AM
  #28  
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Originally Posted by 1 BAD BURB
i think i know one of the guys whose motor blew up... since im local to DRM, i hear things...

And im the new owner of Blown ECS Z06's old monster of a car... an MTI built 427 Z07 package using a C5R block. just recently, i have had a retune done, oil analysis and compression tests, everything has came out to be in tip top shape! engine wear is down to a minimal and i drove her fairly hard this last summer... you cannot beat the performance of the C5R block! and imagine a tq/hp curve where your pushing upper 400s from 3K -7K rpms... love the N/A motors for this reason...
i would definitly suggest MTI or ECS for your work! they seem to be making a LOT of people happy on this board!
Aj

pardon my ignorance but who is ECS?
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Old Feb 7, 2006 | 12:56 PM
  #29  
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Welcome to the considerations of the high powered NA world. There's nothing like that feel of instant on-demand power, ease of maintenance, and consistency.

Darton sleeves are great. I wasn't one for the C5R block idea myself. They're very reliable and get you those big cubes with no problems. The only things you need to really be sure of is that your builder is knowledgeable and familiar with them, and run Evans coolant!
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Old Feb 7, 2006 | 01:34 PM
  #30  
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Let me give you a piece of advice based on REAL, first hand experience and vast knowledge of heavy aftermarket mods reality:

I would highly recommend going with a most reputable tuner you can find NEAR home.
Within reasonable driving distance (if possible) is the most optimum

I see you’re in FL, check with Mike Norris. I heard good things about him.
There maybe others, I don’t know…

You can decide what kind of block you’re more comfortable with, but make sure you get COMPLETE warranty and whatever you do, make sure ONLY one shop does ALL the work, tuning, etc., etc., from start to finish.

Good luck.
Big cube NA LSx motors RCK!!!
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Old Feb 7, 2006 | 01:40 PM
  #31  
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Originally Posted by EuG
Let me give you a piece of advice based on REAL, first hand experience and vast knowledge of heavy aftermarket mods reality:

I would highly recommend going with a most reputable tuner you can find NEAR home.
Within reasonable driving distance (if possible) is the most optimum

I see you’re in FL, check with Mike Norris. I heard good things about him.
There maybe others, I don’t know…

You can decide what kind of block you’re more comfortable with, but make sure you get COMPLETE warranty and whatever you do, make sure ONLY one shop does ALL the work, tuning, etc., etc., from start to finish.

Good luck.
Big cube NA LSx motors RCK!!!
Excellent advice. I could not agree more. I won't go into detail about my story but a lot of headaches occured by having other parties involved. Plus it sucks trailering a car back and forth a few hundred miles away at various times.
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Old Feb 7, 2006 | 05:48 PM
  #32  
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Originally Posted by 1996man
pardon my ignorance but who is ECS?
East Coast Supercharging...forum vendor here...
Aj
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