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Forum: Performance Modifications

Engine | Transmission | Chassis | Fuel

  1. Caltracs vs. longbars?

    Ok guys ive noticed that some guys (including one of my friends with a cummins) are starting to run longbars rather than caltracs. I plan on building...

    Started by 03 5.3‎, 12-12-2010 11:17 AM
    2 Pages
    1 2
    • Replies: 10
    • Views: 4,174
    12-12-2010, 10:54 PM Go to last post
  2. Which Cometic Head Gaskets for 5.3

    Im going to be installing a set of P/P 243 heads milled .040 on my stock 5.3l bottom end ,to run while i build the LQ9. Cam is a Lunati voodoo...

    Started by Bigschwerm‎, 12-10-2010 03:23 PM
    • Replies: 4
    • Views: 2,852
    12-10-2010, 08:09 PM Go to last post
  3. Injectors

    ok cats outta the bag.. i just placed an order on a block to build a 408 for the SS. anyone think im gonna need bigger injectors? i got 42lbers in...

    Started by MidwestSS‎, 12-09-2010 10:26 AM
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 3,672
    12-09-2010, 05:53 PM Go to last post
  4. Question I just installed a Vette Servo

    I've heard about it, ordered one off of Ebay for $15 shipped and it took me about 45 minutes to install. It definately makes a difference. Now under...

    Started by LEADFOOT‎, 11-21-2010 09:59 PM
    • Replies: 9
    • Views: 2,547
    12-08-2010, 03:51 PM Go to last post
  5. anyone running 1-7/8 headers?

    if so what brand? anyone know if F-body headers will work, i have heard that some will and some wont,

    Started by banker099‎, 11-03-2010 10:10 AM
    • Replies: 9
    • Views: 2,094
    12-06-2010, 03:56 PM Go to last post
  6. Opinions on Moroso Spiral Flow?

    Does anyone have one? I'm looking for something LOUD at WOT that has no drone. I don't want to jump on the Magnaflow bandwagon but cannot stand...

    Started by pl4yboy‎, 12-05-2010 01:12 AM
    • Replies: 7
    • Views: 1,935
    12-05-2010, 11:05 PM Go to last post
  7. Valve seals for 243 heads

    Guys, I need a new set of valve seals for my 243 heads. Anyone know the GM part number for these particular seals?

    Started by TA63‎, 12-04-2010 02:42 PM
    • Replies: 3
    • Views: 2,188
    12-05-2010, 06:25 PM Go to last post
  8. Efans on a Yukon?

    Efans on a yukon good or bad idea?

    Started by TheMicK‎, 12-02-2010 10:49 PM
    • Replies: 3
    • Views: 1,368
    12-04-2010, 08:30 PM Go to last post
  9. Where to start with the 5.3L?

    Just got rid of my favorite short wide bed chevy (2000) for a 09 GMC Sierra 2WD 5.3L. After looking up the vin I found out the engine is a LY5. ...

    Started by Rmitch223‎, 08-30-2010 04:48 PM
    3 Pages
    1 2 3
    • Replies: 23
    • Views: 6,398
    12-04-2010, 09:35 AM Go to last post
  10. Power steering cooler?

    My pump just went out, so was thinking of adding a better cooler at the same time i replace the pump(better cooling longer life i hope) can anyone...

    Started by DBOY510‎, 12-02-2010 12:04 AM
    • Replies: 1
    • Views: 1,131
    12-02-2010, 02:21 PM Go to last post
  11. Timing retard trick

    Ok I am seriously thinking about doing this in the near future. Looking for input from anyone with any experience with this. Basically you wire up...

    Started by DBRODS‎, 07-26-2009 04:22 PM
    8 Pages
    1 2 3 ... 8
    • Replies: 71
    • Views: 13,317
    11-29-2010, 07:24 PM Go to last post
  12. Can i run returnless style on a return style fuel system?

    So i recently upgraded to a 5.7 ls6 in my 2000 silverado with a return style fuel system..i have it rigged with a t fitting in the feed line that...

    Started by chvy=power‎, 11-28-2010 03:56 PM
    • Replies: 2
    • Views: 1,659
    11-28-2010, 10:28 PM Go to last post
  13. Edelbrock Fuel rails? On Sizes

    I cant find any info, nor do i know where to look to see what size ID fuel rails are needed for what HP rating. I am looking at the Edelbrock ones...

    Started by SLO TRUCK‎, 11-27-2010 11:52 PM
    • Replies: 3
    • Views: 1,604
    11-28-2010, 12:39 PM Go to last post
  14. Cam in a 5.3

    I have 04 silverado Z71 with a 5.3 nothing to much done to it. running 33s with 373 gears I am looking into putting a cam in it I don't race with it...

    Started by black04z71‎, 11-23-2010 11:48 PM
    2 Pages
    1 2
    • Replies: 12
    • Views: 3,407
    11-28-2010, 12:58 AM Go to last post
  15. 243 head porting

    Do the 243 heads respond well to a little hand porting in the bowl area, or are they pretty clean there as cast?

    Started by TA63‎, 11-25-2010 10:29 AM
    • Replies: 2
    • Views: 2,159
    11-27-2010, 11:20 AM Go to last post
  16. Muffler/ Cat Question.? Not another exhaust thread! lol

    Ok, just recently I looked under my 09 nnbs and saw that there is a unmonitored cat infront of the muffler behind the flange that bolts to the...

    Started by Rmitch223‎, 11-17-2010 07:56 AM
    3 Pages
    1 2 3
    • Replies: 21
    • Views: 5,002
    11-24-2010, 11:14 AM Go to last post
  17. Stock internal 6.0 + 3200 verter ?

    Ok guys im gonna be gettin either a lq4 or 9 depending on $ at the end of this month. The ? is, is the 3200 stall (behind my cammed 4.8) gonna be too...

    Started by 11 6.2‎, 11-10-2010 01:14 PM
    • Replies: 3
    • Views: 1,471
    11-23-2010, 11:22 PM Go to last post
  18. Thunder Racing CheaTR cam

    Just wanted to see what you guys think about the cheaTR V.3 cam from TR. The specs are: 219/230 .607/.604 117 LSA It will be going in my 5.3 with...

    Started by bangbangskeetskeet‎, 10-23-2010 08:56 PM
    5 Pages
    1 2 3 ... 5
    • Replies: 47
    • Views: 19,475
    11-23-2010, 06:56 PM Go to last post
  19. Question Exhaust cutouts

    How many of u guys have one?or run them?do they help out during racing?i just put one on my truck just for sound.to me it runs better closed. Anyone...

    Started by CHEVROLADE‎, 11-16-2010 06:13 PM
    • Replies: 5
    • Views: 1,854
    11-22-2010, 09:33 PM Go to last post
  20. Lonnies Performance double pumper fuel system

    I just ran across this sweet looking setup while reading a Truckin Magazine. I have never heard of them before but i don't know of anybody that makes...

    Started by ZipTy‎, 11-17-2010 10:16 AM
    2 Pages
    1 2
    • Replies: 11
    • Views: 5,572
    11-22-2010, 10:56 AM Go to last post

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