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Thread: my official build thread

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  1. #1
    Join Date
    Jan 2008
    Posts
    1,550
    Update: The 4L60e and circle D has been sold. Im getting a TH400 built this week and I will be calling Neal Chance converters to get one of those on the way. Ill post pics of the swap when I get it going.

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  2. #2
    Join Date
    Mar 2007
    Location
    Newark, Delaware
    Posts
    931
    Smart move selling off the 60E before it grenaded into a pile of worthless parts, lol.
    Big slow mud truck with a TUNE!!!!!!

  3. #3
    Join Date
    Jan 2008
    Posts
    1,550
    Lol my thoughts exactly. I can't swing the Neal chance converter so I'm going back with a circle d. I called Chris and I think I got it figured out. Just have to install my nitrous kit on my buddy's TA to get the rest of the cash

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  4. #4
    Join Date
    Jan 2009
    Location
    Rockwall, TX
    Posts
    558
    Any updates? How's the turbo holding up? Ever get the th400?

    1989 RCSS 5.3/4L60E swap
    - 224/230 .581.591 112lsa,
    - 3200 Stall
    - DJM 4/6 drop
    - Nelson Tuned

    Building the truck GM never did..

  5. #5
    Join Date
    Jan 2008
    Posts
    1,550
    Its holding up just fine! Running strong too. I need to do a little tuning bc it was tuned when it was 40 degrees outside and now its easily twice that so the afr is in the mid to high 10s. Other than that its doing great, I spanked a c6 the other night on the interstate, it was extra rewarding bc he had his girl with him and when I gave him a rev they both laughed as if I didnt have a chance hehe. Anyway here are some pics of the tranny. Its a local built TH400 with a TH375 tailshaft, a modified shifter shaft to accept my PRNDL switch from the 60e and it has the temp sensor mounted inside the pan. I went with a Circle D 3B stall and it is a huge difference. I loved the old Circle D but I was blowing through it with the new found power. Here are the pics:





    Temp sender

    Ready to go in!

    Mount I built that bolts to the stock crossmember

    Modified shifter shaft, half 60e half 400

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  6. #6
    Join Date
    Jan 2008
    Posts
    1,550
    Here is a picture of it in and all ready to go

    I drilled and tapped the rear steam vent plugs and ran the hoses to the front one and Tee'd it into the hose that runs to the radiator.

    Here is the new driveshaft. Its 3.5" .083 wall with 1350 yokes and solid u-joints


    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  7. #7
    Join Date
    Jan 2008
    Posts
    1,550
    After I got that all done, I swapped the 4.10s for some 3.42s and put 6 degree pinion shims to fix the pinion angle. I kept having fuel pump/pickup problems. It kept getting air in the line somehow and kept cavitating. I had the bed off at least 6 times and the pump apart 3 times trying to fix it. Here are some pics of the inards of the pump.


    I had been eyeing the aeromotive fuel cells with the built in A1000 pumps since I started the build and I decided to bite the bullet and get it so I would be done with the fuel system and not have to worry about it anymore. It came with a one wire sender that I wouldnt be able to use with my in-dash level gauge so I took the stock one off the bucket, trimmed it to fit in the hole, made a bracket to mount it in the Aeromotive sender location and used the float that came with the Aeromotive one. Here are some picks of the sender fab and some mounted pictures.













    Since then I made up some hoses for the two vents and that runs underneath the truck. I also have a MSD 2 step I got from my roommate and at 2900 rpm on the footbrake I can build 6psi so It should rip if the slicks hold which they should. I plan to make a trip to the track soon after a little tuning and see what it does on 9psi. Im thinking it should be bottom 11s as is and I hope to get it into the 10s on pump gas so we shall see.

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  8. #8
    Join Date
    Sep 2011
    Posts
    1,235
    This is my favorite build thread on this site! Awesome job your doing, keep it up!
    99 rcsb silverado...... boosted.

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