1.6 exhaust valves - CorvetteForum - Chevrolet Corvette Forum Discussion


C5 Tech
Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

1.6 exhaust valves

Reply
 
 
 
Thread Tools Search this Thread
Old 03-12-2014, 01:41 PM   #1
C5vette1990
Junior Member
Thread Starter
 
Member Since: Feb 2014
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Default 1.6 exhaust valves

I have an 01 ls1 I'm about to do h/c swap on, picked up some ported ls6 heads and have them at a shop to be gone through. The valves are all stock size I'm wondering if it's worth it to go up to 1.6 on the exhaust valves? Is it worth it since I will need new exhaust valves and cost more for the extra machining?
C5vette1990 is offline   Reply With Quote
Old 03-12-2014, 03:32 PM   #2
vettenuts
CF Senior Member
 
vettenuts's Avatar
 
Member Since: Mar 1999
Location: At the beach in little Rhody
Posts: 21,370
Thanks: 0
Thanked 48 Times in 47 Posts
Default

Not sure why you need new exhaust valves. The stock rocker on the LS1 is 1.7:1 and I assume the 1.6 ratio you are referring to is for a SBC. On the LS6 heads, if they have the lightweight valves don't replace them.
vettenuts is offline   Reply With Quote
Old 03-12-2014, 04:59 PM   #3
C5vette1990
Junior Member
Thread Starter
 
Member Since: Feb 2014
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by vettenuts View Post
Not sure why you need new exhaust valves. The stock rocker on the LS1 is 1.7:1 and I assume the 1.6 ratio you are referring to is for a SBC. On the LS6 heads, if they have the lightweight valves don't replace them.
Oh sorry Not the rockers, I meant the exhaust valve size itself stock they are 1.55" and I was wondering how much different putting a 1.60" exhaust valve in makes
C5vette1990 is offline   Reply With Quote
Old 03-12-2014, 05:06 PM   #4
kromberg
CF Senior Member
 
kromberg's Avatar
 
Member Since: Jan 2001
Location: Lafayette Colorado
Posts: 5,757
Thanks: 0
Thanked 2 Times in 2 Posts
Default

Depends on if the heads have been milled. If they have you will most likely have to flycut your pistons a little for needed clearance. You can usually rent/beg/barrow one fairly cheaply locally or on board.
kromberg is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • 1.6 exhaust valves
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    *Broken LS7 SS exhaust valve... RWE 427 C6 Z06 Discussion 62 08-03-2016 01:34 PM
    Diagnosing my LS6 problems AParsh C5 General 22 04-13-2016 09:01 PM
    WTB LS6 Hollow Intake Valves & Sodium Filled Exhaust Valves VengeanceVette C5 Parts for Sale/Wanted 2 12-13-2015 04:03 PM
    Sending my heads to WCCH, what exhaust valves to use? BoostedEBZ06 C6 Z06 Discussion 68 10-22-2013 09:32 PM
    Biggest size valves for LS1/6 style heads? Mike TexaSS C5 Tech 2 01-21-2003 02:31 PM


    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 05:44 PM.


     
    • Ask a Question
      Get answers from community experts
    What's your question?
    Send