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Thread: 97 4x4 5.3

  1. 11-21-2009 06:03 PM #1
    fireman_033
    fireman_033 is offline Junior Member
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    97 4x4 5.3

    Hello all I am new here and have been readin all evenin. My 97 Centurion 4x4 has a vortec 350 which is a POS and I have a 99 5.3 sittin on the engine stand LT1 wiring has already redone the harness so I figured I could drop it in but had no idea all this conversion stuff existed. I have a good understandin of what I need but have a Q or 2. What about some flywheel spacer? Something bout a tach module? Those are the only 2 I have right now but I am sure there will be more. Thanks Scott
    Last edited by fireman_033; 11-21-2009 at 06:25 PM.
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  2. 11-23-2009 09:36 PM #2
    fireman_033
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    Ok I am completely cofused about this spacer for the flywheel I looked at the writeup on Street and performance yukon and they used a flywheel that has a bump at each bolt looks like obs and the flywheel on my 5.3 is flat. Somebody please help...
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  3. 11-29-2009 11:38 PM #3
    thArf
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    your 99 will need a spacer im pretty sure if you use your stock tranny. it just fills a little gap that the 99-02 blocks had for this swap.

    no tach module needed for your truck.
    1996 - BIG BLACK: 5.0 | cognito 10+3 | 22/37 toyo | 14B/4:56 w discs | built 4l60e | corbeau
    1999 - OBS SS RICER: 6.0 lq4 | autometer | jdm! | whipple | FLT billet 4l65 | yank | truetrac
    1954 - OLD RED: Chevy 210 - 3 speed | 235 inline 6
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  4. 11-30-2009 09:54 PM #4
    fireman_033
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    Ok thanks
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  5. 12-03-2009 08:32 PM #5
    fireman_033
    fireman_033 is offline Junior Member
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    I got back up to the shop today and looked at a few things I have been wonderin about. My engine has an egr does anyone make a blockoff plate for the intake and the exhaust? and The heads are 862 casting are these anything special? Thanks Scott
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  6. 12-03-2009 08:49 PM #6
    fireman_033
    fireman_033 is offline Junior Member
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    Ok I just read about putting a freeze plug in the egr hole anyone know diameter for said plug?
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