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  1. #1
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540

    2007 Gmt900 Rcsb

    Here we go again...

    Base model work truck with a 4.8L and 60e, no bells, no whistles... As delivered


    Got it home, removed the color on the grille...


    After lowering the rear with 2" shackles and removing the lift block...
    Last edited by RedHeartbeat; 10-24-2009 at 07:50 PM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Here's a small update...

    4.8L engine/ 4L60e trans was tuned by NelsonPerformance.com Can you say POWA?

    Added a Detroit Truetrac to replace the stock weird feeling G80 carrier. Originally, I put a set of 4.10s I had laying around but they were noisy. I checked the pattern and the drive side was perfect but the coast side was all over the place, everywhere but the middle of the tooth. The gears were in a rear end of my 93 when the Auburn broke. I guess it ruined my AAM gears. Oh well, 3.23 gears are back in place.

    The GMC rim and tire on my truck weighed in at 63 lbs, FWIW.

    The cheap drop-in RuggedLiner the dealer installed to hide the scraped up bed was pulled and one of Alton's buds sprayed a new Dupont Urethane bedliner in the truck and along the edges of the rail where the drop-in liner had scuffed up the paint. The new Dupont liner has UV protectant in it to prevent it from turning grey like most sprayed in liners you see. BTW, the drop-in liner is now riding on top of the sprayed in liner for twice the protection. I know, it's overkill but I didn't want to just throw the old one away.

    Removed the BowTie off the tailgate using fishing line and then a 3M eraser wheel.

    The truck did not come with the Driver Information Control (DIC) control panel so I ordered one and installed it in about 15 minutes. I now have access to all information available to the luxury truck drivers, except outside air temp. You can get it cheaper but you'll be looking quite some time to save just a few dollars... GM Parts Direct: Your direct source for Genuine GM Parts
    Last edited by RedHeartbeat; 12-26-2009 at 01:13 PM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Starting to rebuild the POS HKE 408 out of the 93. Shortblock reconditioned by WATT's SHOP in Lavon, TX. Crank polished, block linebored an additional .002" larger since it was too tight to start with, piston cylinders honed and radiused at bottoms, lifter bores checked, factory stock cam bearings removed and metal shavings left by GM and HKE machining process removed, new cam bearings deburred and radiused and then installed, small ends of rods narrowed/clearance .040" due to rod float causing rub marks on piston pin bosses and then balanced the rotating assembly. Piston rings replaced because old rings were twisted from spiralling them onto the pistons instead of using spreader pliers.

    KING Aluminum racing main bearings, MB5013HP 020, +.020 oversize.
    Clevite rod bearings, CB-663 HN10, +.010 oversize.
    Rollmaster single row timing set CS1190, allows use of 3 bolt cam in Gen4 engines.
    SpeedPro Hellfire file fit piston rings, R-19100 35.
    Cam bearings, deburred, radiused and installed.
    4" Eagle 4340 crank, polished.
    6.125" Eagle rods, resized and narrowed on small ends.
    4.030" Wiseco Pistons -8cc K394A3
    52X reluctor.
    New Spiral locks for the piston pins.
    GM head gaskets 12589227
    ARP main studs 234-5608

    A few extra tools added to the garage from SummitRacing to complete the build, don't forget that they do price matching plus they beat the other advertised price...

    LUN-98401 ROD BOLT STRETCH GAUGE
    SME-904030 4.030 BORE RING COMPRESSOR
    SUM-906795 UNIVERSAL RING FILER
    WMR-W80575 PISTON RING INSTALLER PLIERS
    Last edited by RedHeartbeat; 12-26-2009 at 01:11 PM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  4. #4
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    408 Gen3 converted to 58X reluctor, 4 pulse per revoluton cam sensor and installed http://www.ls1truck.com/forums/mecha...n4-update.html
    4L80E is installed http://www.ls1truck.com/forums/mecha...on-gmt900.html
    Added a ported and polished throttle body from Mark Shaner at L92 / LS3 ported heads and throttle bodys
    Last edited by RedHeartbeat; 03-11-2010 at 01:43 AM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  5. #5
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Changed directions, again. Added an STS kit with 6776e turbocharger and air to air intercooler. http://www.ls1truck.com/forums/power...tml#post371516
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  6. #6
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    New addition to the 408 for the turbo, Wiseco -15cc pistons to bring down the compression and get the 408 back in the truck. These ought to help a lot. Next, I have to decide which heads I want to run, stock LQ4 with dual Patriot Platinum Extreme springs or the larger valved Patriot ported heads but with 64cc domes which will raise compression.

    Patriot Performance Heads
    2.08 intakes / 1.60 exhaust
    64cc
    air flow numbers...
    lift intake exhuast
    .10 78.9 63.2
    .20 150.5 123.5
    .30 212.9 165.9
    .40 261.0 195.1
    .50 296.3 216.2
    .55 307.4 220.0
    .60 311.3 222.2
    Dual springs w/titanium retainers good to .650 lift



    Wiseco Pistons - Chevy
    LS-1/LS-2/6.0
    Included: Pistons, Rings, Pins & Spirolox, Skirt Coatings


    NOTES - Please Read:
    - LS-1 block has 9.240 deck, 6.0 truck block has 9.230, LSX block is
    approximately 9.255. Pick rod length accordingly
    - 4.070 bores or smaller take all but LS7 valve sizes.
    - All bores 4.100 take any valve size including LS7
    As the leader in LS-1 forged pistons, Wiseco pulled out all the stops when designing this series. They are designed to accommodate the reluctor ring on stroker cranks without having to notch the pin bosses. Offset pins like o.e. and skirt shapes specifically designed for street applications make these the best available. They have been tested successfully in the highest horsepower applications.



    All Pistons Feature:


    • NEW Coated skirts for LS Series Pistons. Much higher adherence factor then other moly coatings.
    • 2618 Alloy: Will not shatter like hypereutectic, or cast pistons.
    • Strutted skirt design is the strongest and specially designed to run at as little as .004" clearance, with excellent skirt wear and minimal noise or rock.
    • Radius valve pockets for detonation resistance and increased flow around valves.
    • Anti Detonation Grooves with the added benefit of keeping the top ring groove free of carbon
    • 3mm oil rings for better oil control and reduced friction for more horsepower
    • Pressure groove for enhanced ring seal
    • Features Chrome Moly pins and spiralox, tool steel pins optional
    • Race Ready domes don't require deburring by the engine builder
    • Multi-fit valve pckets for interchangeability of cylinder heads


    445X3 pistons

    4.030" bore
    suggested clearance .0035", measured 1.300" from bottom of oil groove

    4.000" stroke
    6.125" rod
    1.110" compression height
    -15cc dish
    450gm average weight
    65cc 10.2cr
    67cc 10.0cr
    68cc 9.9cr
    70cc 9.7cr
    ring set 4032GFX


    piston pin S643 .927 x 2.250
    Retainer clip CS24
    piston rings..
    oil ring support GLS25
    top ring groove width .0490
    2nd ring groove width .0490
    ring groove width .1498
    left side piston...6445LX3
    right side piston...6445RX3
    file fit piston ring set....
    oil ring end gap .010"

    top ring steel nitrided, positive twist
    2nd ring ductile iron Napier style




    minimum gap per inch of bore=========== top ring===== 2nd ring
    high perf street/strip================== .0045 ======.0050
    street moderate turbo/nitrous=========== .0050 =======.0055
    late model stock===================== .0050 =======.0053
    circle track/drag race================= .0055========.0057
    nitrous race only===================== .0070=======.0073
    blown race only====================== .0060=======.0063

    2nd ring gap should be larger than the top ring to reduce ring flutter.... Jon was right.
    Last edited by RedHeartbeat; 10-14-2010 at 09:00 PM.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  7. #7
    Join Date
    Jun 2009
    Location
    Washington DC
    Posts
    1,812
    Cant wait to hear about how she runs when you get this beast back together. Good stuff Greg....

  8. #8
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    The pilot on the convertor had a dent in it and caused the converter to wobble.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  9. #9
    Join Date
    May 2020
    Location
    оссия
    Posts
    1

    гадания синьорина

    Будьте уверены.

    ---
    Я извиняюсь, но, по-моему, Вы не правы. Предлагаю это обсудить. яндекс гадание, правдивые гадания а также на этом сайте статуэтка гадание
    ДА, вариант хороший, гадание 100 или здесь санхоум гадание

  10. #10
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Well, had issues with the trans. I put the stock converter back in it and something wasnt right and the front pump burned up. Got the PI Vigilante stall redone very tight and 3200 stall. I'll get a new pump and have it back together shortly then I can start the turbo install.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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