Go Back   CamaroZ28.Com Message Board > 1967-2002 Powertrain Discussion > LS1 Based Engine Tech
Sign in using an external account
Register Forgot Password?

Reply Post New Thread
LinkBack Thread Tools Search this Thread Display Modes
Old 05-02-2013, 03:32 PM   #1
Registered User
Join Date: Feb 2010
Location: Chicago
Posts: 149
LS2 OE block max HP..?

I want to build a LS2 427 twin turbo. I've seen some LSx blocks make well over 1000hp without any issues. Assuming the engine tune is mild for street use only do you think I will be safe with a stock/OE 364Cu/In LS2 block out of a 07' Corvette?
This ad is not displayed to registered members.
Register your free account today and become a member on CamaroZ28.com!
Diplomat is offline   Reply With Quote
Old 05-03-2013, 01:18 AM   #2
Registered User
Join Date: Dec 2006
Posts: 30
Re: LS2 OE block max HP..?

Im not sure you can get a 427 out of an ls2?
That requires a 4 inch stroke and a 4.125 inch bore, and im not sure the ls2 can go much bigger than 4.070
Bigbadwhitey is offline   Reply With Quote
Old 05-03-2013, 10:58 AM   #3
Registered User
WhiteHawk's Avatar
Join Date: Feb 2004
Posts: 943
Re: LS2 OE block max HP..?

I see the LS1's start to crack in the 800 range. I wouldn't dare go 1000 on an aluminum block, and the extra bore size on the LS2 makes it even weaker. Get an LSx block if you want to make that kind of power.

A buddy of mine built 2 turbo LS1's in a row and both times he cracked the block right in the middle. For the third build, he got a 5.3 iron block, did a partial fill, and punched it out to the LS1's 3.90 bore. He makes in the 800's and hasn't had an issue yet - same tune as before too.

11 Silverado - No times yet.
99Z28 - 11.91@118.5. 403 L76/L92 with street tires and launching with the traction control.
WhiteHawk is offline   Reply With Quote
Old 05-03-2013, 10:58 AM
Reply Post New Thread

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 06:47 PM.

Copyright © 1996-2013 CamaroZ28.Com. All rights reserved.

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.