Results 1 to 4 of 4

4.8 l swap in a 81 El Camino

This is a discussion on 4.8 l swap in a 81 El Camino within the Classic Muscle forums, part of the Vehicle Specific category; Hello folks I have had a 2005 Chevy 4.8 L engine put in my 81 El Camino and I need ...

  1. #1
    Junior Member
    Join Date
    Jul 2009
    Location
    Dublin, Texas
    Posts
    2
    81 El Camino

    4.8 l swap in a 81 El Camino

    Hello folks I have had a 2005 Chevy 4.8 L engine put in my 81 El Camino and I need some help. I am wanting to use electric fans and a Auto Meter water tenperature gauge. And I was wondering if I could hook these up to the factory engine coolant temperature sensor wires, these would be the yellow and gray wires? Would this damage the computer?
    I can only find one other place to put a sensor and it is very close to the AC box. Also I think it is a 12 meter. And the fan and temperature gauge both use pipe threads. And useing a adapter only the very end of the sensor will be exposted to the water
    Also where can you put in a oil pressure sensor on this engine?

    Thanks far your help.

  2. #2
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    Well, you ran into the same thing I did and here is how I solved it.

    I didn't like the adapter idea for the water temp either, and I needed pipe thread for the sender, not that metric junk. So I simply drilled and tapped the head to fit my pipe thread sender,,,now I can use my factory gauge in the truck,,,,first here is a pic of the metric plug and the factory hole....



    Here is the difference in size. That's a 1/2" pipe thread sending unit.



    And here it is installed in the head after drilling and tapping, also pictured is the drill bit size needed for 1/2 " pipe tap.



    That took care of the temp gauge. I still have the factory temp sending unit on the driver side head to work with the computer, so I can run a factory electric fan setup as well.

    On the oil pressure, rather than deal with the sending unit on the back of the intake I took a much simpler approach.
    I simply drilled and tapped (1/8" pipe) the small bolt on cap right above the oil filter. My truck happens to have a mechanical oil pressure gauge, so I just have to run a simple line. But this trick would also work for an electric sending unit as well.




    Hope that helps.

  3. #3
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,567

    Black & Blue
    '02 WS.6 / '07 Suburban

    Very slick, FBJ. I especially like the oil sender solution.

  4. #4
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    Quote Originally Posted by pajeff02 View Post
    Very slick, FBJ. I especially like the oil sender solution.
    Thank you sir, one of these days I'll get the swap done . Seems I can't win right now, since the motor in my truck let go a couple weeks ago. So I have a 502 crate on the way to replace the tired 454 Gotta do that one first and put the blazer on hold for now.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 1967 El Camino
    By OLD Fart in forum New Member Introductions
    Replies: 2
    Last Post: 07-18-2011, 10:42 PM
  2. New El Camino?
    By tav8ws6 in forum Almost Anything Goes
    Replies: 34
    Last Post: 05-09-2011, 05:42 AM
  3. 65 el camino to ls1
    By ces in forum External Engine
    Replies: 0
    Last Post: 08-15-2007, 01:37 PM
  4. LS-El Camino Drifting!
    By powerjon in forum Multimedia Section
    Replies: 8
    Last Post: 07-14-2007, 06:12 PM
  5. also 81 el camino & 59 bel air
    By saint d in forum Vehicles For Sale / Trade
    Replies: 0
    Last Post: 12-17-2006, 07:10 PM

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
  •