Results 1 to 4 of 4

5.3 HEADS on LS1

This is a discussion on 5.3 HEADS on LS1 within the Internal Engine forums, part of the LSx Technical Help Section category; okay im looking into buying a set of stock 5.3 heads, i am going to be swapping a ls6 cam ...

  1. #1
    Senior Member camarojunky74's Avatar
    Join Date
    Jun 2007
    Location
    corona ca
    Age
    31
    Posts
    2,258

    white, white and pewter
    Rip99SSA4,74Z28M4,02SSM6

    5.3 HEADS on LS1

    okay im looking into buying a set of stock 5.3 heads, i am going to be swapping a ls6 cam also,

    should i buy these heads for 150 bucks,

    will i make more power doing this if so how much or wil the smaller valves hurt me even thou compression will be going up???

    thanks luke

  2. #2
    Senior Member mrr23's Avatar
    Join Date
    Jul 2005
    Location
    orlando, fl
    Posts
    7,134

    dark bowling green
    2000 corvette

    so long as they are completely stock, you'll be moving backwards. not only are the intake valves smaller, so are the runners. what you gain in compression will not make up for the loss of flow.

  3. #3
    Senior Member camarojunky74's Avatar
    Join Date
    Jun 2007
    Location
    corona ca
    Age
    31
    Posts
    2,258

    white, white and pewter
    Rip99SSA4,74Z28M4,02SSM6

    thats what i thought, thanks for clearing it up for me

  4. #4
    Junior Member jkade72's Avatar
    Join Date
    Jul 2007
    Location
    Centre, AL
    Posts
    25

    Both Red
    67 C10 & 72 2WD Blazer

    I have a set that I am going to bench port myself, reckon that will help any?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 0
    Last Post: 03-16-2011, 10:30 AM
  2. Replies: 0
    Last Post: 02-04-2011, 03:00 PM
  3. AFR heads VS. Ported and beefed up stock heads.
    By hutcher04 in forum Internal Engine
    Replies: 10
    Last Post: 03-14-2010, 09:27 AM
  4. New Heads or Port/Polish Stock Heads?
    By Black02LS1 in forum Internal Engine
    Replies: 32
    Last Post: 06-23-2007, 12:29 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •