LT4 valves in LT1 heads.. - CorvetteForum - Chevrolet Corvette Forum Discussion

Go Back   >
Log In 
Register FAQ Search Today's Posts Mark Forums Read Vendor Directory

C4 Tech/Performance
L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

LT4 valves in LT1 heads..

Reply
 
 
 
Thread Tools Search this Thread
Old 08-01-2008, 12:19 PM   #1
ICANTDR55
CF Senior Member
Thread Starter
 
Member Since: Aug 2001
Location: JACKSON MS
Posts: 331
Thanks: 0
Thanked 0 Times in 0 Posts
Default LT4 valves in LT1 heads..

I have a 92 corvette. I was just wondering will lt4 valves fit in lt1 heads? I took my heads to the local machine shop and the guy claims that he can't find any valves that will fit in the heads. I was trying to go to the lt4 2.00/1.55 valves over my stock 1.94/1.50. Is there any difference between the lt4 and lt1 valve stem size?

Last edited by ICANTDR55; 08-01-2008 at 12:20 PM. Reason: messed up
ICANTDR55 is offline   Reply With Quote
Old 08-01-2008, 06:25 PM   #2
NightTrain66
CF Member
 
Member Since: Feb 2006
Location: Red Oak Tx
Posts: 72
Thanks: 0
Thanked 0 Times in 0 Posts
Default

no difference in stem diameter unless your LT1 heads were sent to some cheepo rebuilder that replaced the valves with oversize stem and drilkled the guides out (faster and cheeper than replacing guides).

As long as they are factory size (11/32), the LT4 valve will fit the guides.

the valve seats will need to be machined for the larger valves but they will work.

Lloyd
NightTrain66 is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • LT4 valves in LT1 heads..
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    128 heads; porting; larger valves????? lgaff C4 Tech/Performance 2 08-21-2012 11:29 PM
    Forced head swap. Durango_Boy C3 Tech/Performance 31 04-04-2007 07:06 PM
    LT4 Valve train..rockers, springs, pushrods, studs, cam / LT1 to LT4 conversion LT4BUD C4 Parts for Sale/Wanted 29 04-21-2004 08:42 PM
    Ported LT1 Heads VS AFR's STL94LT1 C4 Tech/Performance 19 07-04-2002 06:45 PM
    Will LT1 or LT4 valve covers fit on a stock TPI L98? Pics? Curtis629 C4 Tech/Performance 10 05-18-2002 12:52 AM


    Tags
    forsale, head, heads, lt1, lt4, replace, sale, size, stem, valve, valves

    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 02:54 AM.