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Forum: Performance Modifications

Engine | Transmission | Chassis | Fuel

  1. Best place to buy...

    Just comparing prices for 3" stainless exhaust piping. It seems its better off to buy a builder kit than individual pieces most places I've looked....

    Started by we_fly_high‎, 08-10-2013 04:08 PM
    • Replies: 6
    • Views: 2,384
    08-23-2013, 03:01 AM Go to last post
  2. LM7 Cam Questions

    would i be able to run this cam with a stock bottom end ? Top end is so far 706 heads Ls6 springs Ls7 Lifters it says 10.5:1 CR i believe the 03...

    Started by edwinl16‎, 08-16-2013 12:42 AM
    • Replies: 4
    • Views: 3,318
    08-17-2013, 11:06 PM Go to last post
  3. Bought some 243 heads....Got a few ?'s

    So I bought some used 243 heads with 27k miles on them with the yellow springs that came off a Vette. The heads look damn good, my ? is how do I tell...

    Started by Kros383SS‎, 08-12-2013 06:36 PM
    • Replies: 1
    • Views: 1,625
    08-12-2013, 08:11 PM Go to last post
  4. Cold air intake or not?

    I am considering a CAI for my 2013 Sikverado Z71 w/5.3 liter engine. Are these worth it or are they just something flashy under the hood to make a...

    Started by medic2901‎, 07-28-2013 05:08 PM
    • Replies: 8
    • Views: 2,959
    08-02-2013, 09:56 AM Go to last post
  5. Fuel pressure wont hold need some help

    I just swapped a 5.3l into a 98gmc. I installed an aeromotive 340 stealth pump, a-1000 pressure regulator, and 60lb/hr injectors. I prime the system...

    Started by shmiet‎, 07-27-2013 05:50 PM
    2 Pages
    1 2
    fuel, hold, pressure, regulator, swap
    • Replies: 13
    • Views: 11,610
    07-29-2013, 11:17 PM Go to last post
  6. 99 6.0 head questions...

    i got a 99 6.0 with iron heads cheap to start my build, i have a set of 317s available. is the swap worth the gains or should i just save the money...

    Started by kbomhower‎, 07-24-2013 06:11 PM
    • Replies: 2
    • Views: 2,058
    07-29-2013, 10:52 AM Go to last post
  7. having an issue with alternator location.

    As you can see my fuel cross over line is sticking out to far and the alternator is hitting it. Am I just missing something or do I gotta get a damn...

    Started by Botlfed‎, 07-28-2013 12:42 AM
    2 Pages
    1 2
    • Replies: 10
    • Views: 5,629
    07-29-2013, 05:25 AM Go to last post
  8. Muffler Options

    I am currently in need of a new muffler on my truck, and I am in debate as to what to get. I was looking at a Flowmaster Super 40 Deltaflow priced...

    Started by DjGreggieP‎, 01-05-2012 03:37 PM
    6 Pages
    1 2 3 ... 6
    • Replies: 58
    • Views: 15,814
    07-28-2013, 02:05 PM Go to last post
  9. 90mm throttle body to use or not to use

    I got a new in the box cable driven throttle body for free from a friend when he got out of the ls game it is a cheap off brand one. My question is I...

    Started by 94RCSB‎, 07-26-2013 02:13 PM
    • Replies: 4
    • Views: 2,536
    07-27-2013, 07:56 AM Go to last post
  10. Running straight headers

    I plan on taking the exhaust off my blazer in favor of straight headers. How long of an exhaust pipe do I need to have after the collectors so that...

    Started by bstill‎, 07-23-2013 03:27 PM
    • Replies: 5
    • Views: 2,998
    07-25-2013, 09:51 AM Go to last post
  11. cam suggestion for LS1 in 01 reg cab

    01 reg cab short bed, stock ls1, 3k stall with 373 gears. Has headers with off road y pipe magnaflow muffler. Truck intake with 42lb injectors....

    Started by GraniteBlueNNBS‎, 07-21-2013 04:44 PM
    3 Pages
    1 2 3
    • Replies: 23
    • Views: 8,631
    07-24-2013, 11:25 AM Go to last post
  12. bigger injector size question

    bought a new set of 50# injectors from a member on here from a 12' camaro. he said they would work and they look like they will. im in the middle...

    Started by kewljay223‎, 07-22-2013 03:41 PM
    • Replies: 0
    • Views: 1,483
    07-22-2013, 03:41 PM Go to last post
  13. Drag radials

    Hey guys I'm running into a little problem I install a supercharger on my 2000 gmc sierra regular cab 5.3 engine and the street tires that I have...

    Started by Cisco‎, 07-21-2013 12:26 AM
    • Replies: 6
    • Views: 2,077
    07-22-2013, 10:06 AM Go to last post
  14. does a tbody spacer 99-02 fit on 03-07 classic this is for chevy 5.3 1500

    like the tittle says does a throttle body spacer from a 2002 silverado 5.3 fit a 2006 silverado 5.3??

    Started by EL SRG‎, 07-21-2013 04:22 PM
    • Replies: 5
    • Views: 2,625
    07-22-2013, 01:27 AM Go to last post
  15. one question? does Ls1 Camaro 5.7 headers fit chevy silverado 99-06

    well like tittle says?? 5.3

    Started by EL SRG‎, 07-19-2013 02:24 AM
    • Replies: 4
    • Views: 3,243
    07-20-2013, 03:05 AM Go to last post
  16. best manifold for boost on a 5.3???

    Ported 01 truck intake, edelbrock pro flo xt 90mm, vic jr with elbow. Input is appreciated cost is always a factor. This will feed a 5.3 with ported...

    Started by GraniteBlueNNBS‎, 07-17-2013 10:00 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 8,038
    07-19-2013, 10:57 AM Go to last post
  17. Cam Gurus please look!!!

    For the cam whizes here.. I have an 05 CC Z71 lifted with 35's 4:88 gears and 2800 Yank TC. I am about to swap in a .030 over LQ4 with 317's that...

    Started by 1sehturk‎, 06-29-2013 01:33 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 3,942
    07-10-2013, 03:02 PM Go to last post
  18. lq9 cam/tc advice

    I have a '74 K10 sb with an lq9 being built. Few ?'s seeking your expertise/opinions... Built th400 203/205 doubler 4.10's 37's Pacesetter 1...

    Started by rotun‎, 07-03-2013 09:24 PM
    • Replies: 6
    • Views: 2,705
    07-06-2013, 11:40 PM Go to last post
  19. 6.0 needs a cam advise looked and searched

    Ok guys posting for a firend. He wants to keep gas mileage cause gas is $5.05 -5.35 a gallon. The truck is a 2006 escalade on 26" wheels it has...

    Started by jbauto‎, 03-10-2013 09:33 PM
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 9,229
    07-03-2013, 06:19 PM Go to last post
  20. 91oct pump gas mixed 100LL av gas

    Does anyone see any issues with me running 100LL av gas mixed into my 91 oct pump gas. The 100LL has a octane rating of 100 above 90 degrees and a...

    Started by GraniteBlueNNBS‎, 07-01-2013 09:12 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 4,467
    07-03-2013, 11:37 AM Go to last post

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