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Thread: 2013 Black Diamond LSx376 Whipple charged

  1. #1
    Join Date
    Mar 2003
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    San Antonio, TX
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    11,117

    2013 Black Diamond LSx376 Whipple charged

    Just finished a neat project I know you guys will like.
    Brand new (600miles odometer), loaded '13 Avalanche.

    Originally had the 5.3L / 6L80e.

    Now equipped with a GM crate LSx376-B15 and a 2.9L Whipple.
    The engine is waaaay more than what's needed and the charger was chosen for it's larger displacement, vs the smaller 2300.

    Engine: http://www.crateenginedepot.com/LSX3...06-P50811.aspx

    The charger is Whipple's 2.9L, used on the new Camaro.
    http://whipplesuperchargers.com/product.asp?ProdID=1243

    We also added ati crank pulley, longtube headers, 2800 yank converter, bm trans cooler, magnaflow muffler, 4" cold air tube, TruTrac posi, plx gauge and not that you can really tell, a leveling kit for the front.

    TRUCK IS AWESOME!

    As of now, the charger is barely working at 3-4 psi, but the truck is pretty damn quick. A new pulley is on the way to get things fun.

    Goal: a reliable 600hp Avalanche. With an engine that is overdone, a charger that is barely working and staying cool, and absolutely no issues or leaks, this was definitely a success. By no means is this the fastest truck on the road, but it's probably one of my favorite builds. Considering it will never break, gets 16.5mpg and will smoke the tires thru 1st and 2nd. Idle and drivability is great. Steady at 700rpms; the yank converter helps keep the pull away at lights and really allows the engine to get into it's powerband immediately!
    Obviously this combination has a ton left on the table and you're probably asking "why" didn't we want more power? Reliability!
    I know I'm bench racing here, but I'd put this truck against any other and bet it could easily be the fastest Avalanche around; that is if we took advantage of the engine and chargers potential.
    I know it's really hard for some of you gearheads to get over how tame this build is lol; but when you consider how reliable this setup will treat the customer, it was a good decision. However, I still think this engine should be in a race truck lol. It'll support over 1,000hp and the charger can feed the engine with about 15+psi, but it won't see it.

    I've been driving the truck (customers request) for about a week to see if any issues come up; there's been zero!

    Good oil pressure, engine and trans staying cool and the chargers iat's aren't worth mentioning (cool).

    I'll post some dyno numbers later this week after the new pulley shows up.

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    IMG_4603%20%28Copy%29.jpg

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  2. #2
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
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    I see they upgraded the rods in that motor to a forged set. ive had my eyes on that motor for yrs now and always thought it was a good bang for buck motor.
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  3. #3
    Join Date
    Sep 2008
    Location
    Arizona/Utah
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    3,955
    Freaking awesome build for sure. I would hope they would run minimum 6-8lbs however I understand the point of this build. Pretty awesome especially for a brand new truck.

  4. #4
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117
    ya, this engine is the B15, capable of 15psi per GM, which is a bunch of bs, lol. i'm sure 20psi is no problem.
    replace the bolts with studs, it's got the components and block for 30psi.
    i'd take this engine over all the engines i've had built by machine shops; ya bad experiences you could say.
    plus we installed it (master cert) , so there's the 3 year warranty, i know it's gonna be perfect when i install it, oil pressure, quiet, everything just right!
    cam seems very tame, idle is very nice as well.

    i'd use this engine with new bolts on anything less than 1500hp, but i bet it could take more. it truely is the best bang for the buck.



    i'd like to push it more, but everything after the engine was considered., yikes!

  5. #5
    Join Date
    Dec 2004
    Location
    San Antonio, TX Area
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    Nice build. That is something I would be happy with.
    "ALisSa1 Silverado"
    1990 Chevrolet RCSB 2002 Chevrolet Camaro LS1/4L60E
    Scrimpin Ain't Easy
    ( . Y . )


  6. #6
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    6,868
    please post up more if you use this engine in other builds. Might just be something worth picking up then changing out to studs....
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  7. #7
    Join Date
    Feb 2009
    Location
    Clegg, Texas
    Posts
    63
    Allen nice build looking forward to the sub coming in for the set up. Keep up it up man!!

  8. #8
    Join Date
    Nov 2009
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    SAN ANTONE
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    this has been one of my favorite builds this year. I think anyone would be happy with a reliable 600hp avalanche
    06 rcsb, 6two, 231/235, 4.11, pacesetter, 80e, 14 bolt, Nelson tuned
    2011 rcsb 6two swap in the works with 6l90 and boost
    FARMTRUC CAN GARGLE PEANUT BUTTER

  9. #9
    Join Date
    Feb 2009
    Location
    Clegg, Texas
    Posts
    63
    Ray, nice work man. Ready to do it again, always easier the second time.

  10. #10
    Join Date
    Nov 2009
    Location
    SAN ANTONE
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    Quote Originally Posted by SLEEPR View Post
    Ray, nice work man. Ready to do it again, always easier the second time.
    it will be easier second time around, considering that charger wasnt meant for a truck
    06 rcsb, 6two, 231/235, 4.11, pacesetter, 80e, 14 bolt, Nelson tuned
    2011 rcsb 6two swap in the works with 6l90 and boost
    FARMTRUC CAN GARGLE PEANUT BUTTER

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