Results 1 to 8 of 8

Autolite APP103 or APP104 in LT1

This is a discussion on Autolite APP103 or APP104 in LT1 within the Internal Engine forums, part of the LSx Technical Help Section category; I am going to be changing my plugs sometime soon in my LT1. From what it looks like the plugs ...

  1. #1
    Member bryceslu's Avatar
    Join Date
    Jul 2007
    Location
    Chicago, IL
    Posts
    467

    Black
    00 NHRA Formula

    Autolite APP103 or APP104 in LT1

    I am going to be changing my plugs sometime soon in my LT1. From what it looks like the plugs are still stockers at 103K miles and I would feel much better changing them.
    It is basically a stock LT1 with minor bolt-ons including CAI, intake elbow, catback.

    I was wondering what my LT1 would like better, the app104's or little colder app103's?

    Thanks for the input.
    94 m6 Formula - Sold
    2000 NHRA Formula - Always For Sale

  2. #2
    Simpsons Did it!! 98formy's Avatar
    Join Date
    Mar 2007
    Location
    Minnesota
    Age
    36
    Posts
    596

    83 Z28 new project
    98 Formula WS7-sold:(

    104's is what I run in any lt1 I build.

  3. #3
    Member bryceslu's Avatar
    Join Date
    Jul 2007
    Location
    Chicago, IL
    Posts
    467

    Black
    00 NHRA Formula

    Quote Originally Posted by 98formy View Post
    104's is what I run in any lt1 I build.
    Thanks for the info.

  4. #4
    Member bryceslu's Avatar
    Join Date
    Jul 2007
    Location
    Chicago, IL
    Posts
    467

    Black
    00 NHRA Formula

    Anybody else with some input on the Autolites issue?

  5. #5
    Member MotorDogStar's Avatar
    Join Date
    Apr 2009
    Location
    Nashville
    Posts
    105

    Green
    1994 Trans Am GTA

    did you end up going with autolite 103 or 104?....I just got some 103 for my lt1 and I'm wondering now if I should have got the 104's
    "I'll gut you like a fish!"

  6. #6
    Member bryceslu's Avatar
    Join Date
    Jul 2007
    Location
    Chicago, IL
    Posts
    467

    Black
    00 NHRA Formula

    Quote Originally Posted by MotorDogStar View Post
    did you end up going with autolite 103 or 104?....I just got some 103 for my lt1 and I'm wondering now if I should have got the 104's
    hmm..im pretty sure i went with APP104's

  7. #7
    cutting and welding mark21742's Avatar
    Join Date
    Mar 2008
    Location
    mercersburg pa
    Posts
    6,443

    hugger orange
    2004

    I run autolite 103's in my ls1

  8. #8
    Member MotorDogStar's Avatar
    Join Date
    Apr 2009
    Location
    Nashville
    Posts
    105

    Green
    1994 Trans Am GTA

    how r LT1 owners liking them?

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Autolite xp iridium plugs???
    By Ortiz11b in forum General Help
    Replies: 13
    Last Post: 07-09-2011, 05:02 PM
  2. autolite ar-94s random miss at idle
    By krug07 in forum Nitrous
    Replies: 13
    Last Post: 06-05-2008, 06:27 AM
  3. AUTOLITE AR94's for LS2
    By LS2Tuner in forum Nitrous
    Replies: 1
    Last Post: 09-02-2006, 11:49 AM
  4. Autolite XP spark plugs.
    By Cerwin Vega Fan in forum LT1
    Replies: 2
    Last Post: 09-22-2005, 12:15 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
  •