+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 11

Thread: 73-87 LQ4 oil pan

  1. #1
    Join Date
    Dec 2006
    Location
    Edmonton, Alberta, Canada
    Posts
    24

    73-87 LQ4 oil pan

    I want to mount an LQ4 1.5"-2" forward of the stock sbc position in my 85 k3500. Will the oil pan clear the engine crossmember with it being mounted that far forward or will I have to cut up/modify the crossmember?

    I'm mounting it that far forward because I'm also swapping a 4l80e in and it is 1.5" longer than my current setup. I want to keep the trans crossmember in stock location and retain current driveshafts

  2. #2
    Join Date
    Aug 2005
    Location
    St. Anthony, Indiana
    Posts
    1,592
    On my 87 half ton i made 1/2" spacers to go under engine mount on frame side to clear the cross member.

  3. #3
    Join Date
    Aug 2005
    Location
    St. Anthony, Indiana
    Posts
    1,592
    i came across this cross member not to long ago. http://pacificfabrication.com/73-91-...mber-kits.html

  4. #4
    Join Date
    Dec 2006
    Location
    Edmonton, Alberta, Canada
    Posts
    24
    Quote Originally Posted by foggy View Post
    On my 87 half ton i made 1/2" spacers to go under engine mount on frame side to clear the cross member.
    So you mean you lifted the engine up 1/2"?

  5. #5
    Join Date
    Aug 2005
    Location
    St. Anthony, Indiana
    Posts
    1,592
    i used dirty dingo mounts and positioned engine all the way forward. this put my 4l80e in correct position to hook up factory shift linkage, (the 4l80e will need the short selector shaft, the long selector shaft used in the newer vehicles is too long. they are easy to change out.)
    The trans cross member bolted up in original location and i didn't have to modify any of the drive-shafts.

  6. #6
    Join Date
    Aug 2005
    Location
    St. Anthony, Indiana
    Posts
    1,592
    Quote Originally Posted by skyhigh4by View Post
    So you mean you lifted the engine up 1/2"?
    yes

  7. #7
    Join Date
    Dec 2006
    Location
    Edmonton, Alberta, Canada
    Posts
    24
    Quote Originally Posted by foggy View Post
    yes
    Awesome thank you that's exactly what I wanted to know. What drivetrain did your 87 have before the swap? How far forward did you end up going compared to stock? I'm going from 350/sm465/np208 to 6.0/4l80e/np241. I'm going to use the adaptor that currently between the 4l80e and np261. The new adaptor is shorter resulting in only about 1.5" overall length increase.

  8. #8
    Join Date
    Aug 2005
    Location
    St. Anthony, Indiana
    Posts
    1,592
    I went from a 350/700r4/208 to 6.0/4l80e/241

  9. #9
    Join Date
    Aug 2005
    Location
    St. Anthony, Indiana
    Posts
    1,592
    it was 2"-3". Doug Thorley headers fit great with engine all the way forward.20151021_133748.jpg

  10. #10
    Join Date
    Aug 2005
    Location
    St. Anthony, Indiana
    Posts
    1,592
    you will have to run efans also, no room for clutch fan.

+ Reply to Thread

Posting Permissions

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