440 CI's in LS7: anyone? - CorvetteForum - Chevrolet Corvette Forum Discussion

C6 Tech/Performance
LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

440 CI's in LS7: anyone?

Thread Tools Search this Thread
Old 09-23-2010, 11:02 PM   #1
Captain Z
CF Senior Member
Thread Starter
Member Since: Sep 2007
Posts: 357
Thanked 0 Times in 0 Posts
Default 440 CI's in LS7: anyone?

Anyone done a longer stroke in LS7 to make 440 CI or larger?

Any problems? Power gains?

Recommended or not?


Captain Z is offline   Reply With Quote
Old 09-24-2010, 10:08 AM   #2
Former Vendor
Member Since: Apr 2006
Location: Portland OR
Posts: 2,470
Thanks: 0
Thanked 1 Time in 1 Post

We go even bigger and deliver a 457 if you like No issues as long as its maintained and tuned right.

Power gains.. about 1.2 hp per cubic inch but that could jump as high as 2 hp per cid depending on how efficient your current setup is. (cam/heads)

We've picked up a little over 2hp per cubic inch on the last LS7 we stroked to a 457. I would call that unusual and lay blame on the previous build for not being all that it should have been. It was a preferred power vendor on tech that did the original setup for this guy and in their typical fashion delivered a sub-par engine. The customer was not happy with it called us and we took care of him. Not only was this engine cammed wrong ( by a vendor who is know for their cams, it was honed wrong as well and the engine burnt oil all the time, same vendor with the supposed best cams).

SO your power gains are subjective.. but we will gain as much as you possibly can given your application
99blancoss is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • 440 CI's in LS7: anyone?

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    [Z06] ***LMR Punisher 440 Package Dyno Vid*** Late Model Racecraft C6 Corvette ZR1 & Z06 1 11-24-2010 02:02 PM
    [Z06] 440 cubes in LS7? Anyone? Captain Z C6 Corvette ZR1 & Z06 32 09-26-2010 02:04 PM
    440cid LS7 information needed sprinter C5 Tech 12 01-22-2010 09:19 AM
    [Z06] Help, higher water temp using Evans coolant in a 440ci and RPM heads ALTECH C6 Corvette ZR1 & Z06 5 06-19-2009 01:58 PM
    [Z06] LS7 427ci to 440ci-HP/TQ INCREASE? FNQWK C6 Corvette ZR1 & Z06 19 03-30-2009 08:40 PM

    440, build, ci, ls7

    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    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 Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump

    All times are GMT -4. The time now is 10:21 AM.

    • Ask a Question
      Get answers from community experts
    Question Title:
    Your question will be posted in: