LS7 Cylinder Head Dropped Valve Solution with Frankenstein Engine Dynamics

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  • Опубліковано 29 жов 2024
  • Got an LS7 engine? You gotta get your heads fixed. Jason interviews Chris Frank from Frankenstein Engine Dynamics about their LS7 head solution for dropped valves.
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    ➤ Frankenstein Engine Dynamics web site:
    frankensteined.net
    About Jason Debler and Big Engine Productions:
    Jason Debler has been a car enthusiast since the age of 2. From there is was watching professional drag racing all the way up to bracket racing himself and being involved in significant projects with the Chevrolet Camaro and automotive agency involvement. Big Engine Productions is the LLC of all projects that Jason is involved in.

КОМЕНТАРІ • 57

  • @PattonDean
    @PattonDean 7 років тому +3

    That cylinder head was beautiful

  • @GNX157
    @GNX157 3 роки тому +6

    Might as well get the rocker trunnion bearings done while you’re at it.

  • @joeschneider67
    @joeschneider67 4 роки тому +3

    How much it cost to fix that problem?

  • @videomaniac108
    @videomaniac108 9 місяців тому +1

    But does this address the problem that causes the valves to drop in the first place? It's nice to have those things done to the head but do you still have a ticking time bomb that's waiting to go off?

    • @InJasonsGarage
      @InJasonsGarage  9 місяців тому

      That's a fair question...and the answer is even more unknown. Some say it does, others say it doesn't. Since I made this video, it seems that the questions continue, but the answers stay hidden.

    • @videomaniac108
      @videomaniac108 9 місяців тому

      @@InJasonsGarage Good luck with it; I hope you don't have to deal with a valve dropping into the cylinder. It seems to me that GM could have been more forthright about the problem and how to get it fixed.

  • @cjdrives5037
    @cjdrives5037 6 років тому +4

    You should post up your pricing in the description

    • @InJasonsGarage
      @InJasonsGarage  6 років тому +2

      All information is at their web site, frankensteined.net/. You can also give them a call. (817) 556-2434. Tell them you saw this video!

    • @motocrossriders2002
      @motocrossriders2002 6 років тому +1

      $1900.00 per head when you give them a core.

    • @gen-X-trader
      @gen-X-trader 6 років тому +1

      motocrossriders2002 that seems extremely expensive. Lingenfelter is considerably cheaper. Edit I just looked at their site it's 1900 / pair and they do the whole ball of Wax

    • @InJasonsGarage
      @InJasonsGarage  6 років тому

      Are you sure that is per head or per pair? I don't know of anyone who does single cylinder heads.

    • @frankensteinenginedynamics1380
      @frankensteinenginedynamics1380 6 років тому

      We have the F-Series on our website www.FrankensteinED.net now for Pre-Order

  • @markhacker6710
    @markhacker6710 6 років тому +9

    Know a guy who got a set of ls7 heads that were done by Frankenstein, they were junk. Let me say they were put on a street/strip car that had only 12000 miles on them. The guides were gone, I mean way out of spec. Just fyi guys.

    • @InJasonsGarage
      @InJasonsGarage  6 років тому

      Did you mean 1,200 miles by any chance?

    • @drewsharpe7484
      @drewsharpe7484 5 років тому

      Jason D,long time!!
      Surely you have read the FB on the website you started?lol
      Frankenstein heads have been proven to lose power over stock heads!

    • @jerrywilliams4505
      @jerrywilliams4505 4 роки тому +2

      Exhaust valves are the problem, they are sodium filled for cooling, however the exhaust valves are hollow stems and apparently will not take the side load. Replace exhaust factory exhaust valves with good solid stem exhaust valves.
      zoo

  • @safetypermian9445
    @safetypermian9445 4 роки тому +1

    Hi, hey can y’all help me out on the LS7 heads:
    Do you need to put lash caps on all the rockers? Or just on exhaust valve or the intake valve? Please help on this build

    • @faxxzc
      @faxxzc 3 роки тому

      lash caps need to go on the intake valves only since they are titanium

  • @IndependenceCityMotoring
    @IndependenceCityMotoring 6 років тому +1

    How much?

  • @acres90
    @acres90 6 років тому

    Same problem with 5.3 silverados? Ive seen several with engine knocking

    • @InJasonsGarage
      @InJasonsGarage  6 років тому

      Not that I have heard, but I don't follow Silverado 5.3 news usually. The LS7 problem won't be much of an engine knock...it will be a mechanical catastrophe, often with no solid indication it is going to happen.

    • @acres90
      @acres90 6 років тому

      Jason's Garage ok. I have a C5 with an LS1...hope its not an issue

    • @InJasonsGarage
      @InJasonsGarage  6 років тому

      Not likely. This issue is thought to be mostly specific to the LS7, but some have said the LS9 also has some similar issues, but pretty rare by comparison.

    • @bigremi9259
      @bigremi9259 5 років тому

      Check your knock sensors... infamous for the harness to rot/corrode away causing issues, but at that point you might as well swap the sensors too

  • @davidhatfield9805
    @davidhatfield9805 2 роки тому

    What does it cost?

    • @InJasonsGarage
      @InJasonsGarage  2 роки тому

      It varies quite a bit depending on the options you choose. Their web site is frankensteined.net, give them a call.

  • @norteracing7890
    @norteracing7890 4 роки тому

    Best solution is TSP Texas Speed & Performance guys

  • @nuddahundo83
    @nuddahundo83 3 роки тому

    The price of the car should drop huge if this is such a issue.....i still trading my car in for one....

  • @MrSmokin04
    @MrSmokin04 6 років тому

    What are the flow numbers??

    • @InJasonsGarage
      @InJasonsGarage  6 років тому

      frankensteined.net/shop/gm-ls7-stage-1-fed-heads/
      Intake Peak Flow: 410
      Exhaust Peak Flow: 260

    • @markhacker6710
      @markhacker6710 6 років тому

      Saw a set of these with 1200 miles, racing miles. Guides were worn slam out.

    • @InJasonsGarage
      @InJasonsGarage  6 років тому

      @Mark Hacker: Frankenstein heads or stock heads? And what does "slam out" mean? Never heard the term. Was it a typo?

    • @MrSmokin04
      @MrSmokin04 6 років тому

      The Frankenstein heads. Are there flow numbers?

    • @InJasonsGarage
      @InJasonsGarage  6 років тому

      @MrSmokin04 - See my comment above from a month ago!

  • @sjcea0512
    @sjcea0512 4 роки тому

    What's the cost ??

    • @InJasonsGarage
      @InJasonsGarage  4 роки тому

      Depends on the options. Check their web site for the latest or give them a call.

  • @MrRinnytintin
    @MrRinnytintin 6 років тому +2

    how much?????????????

    • @InJasonsGarage
      @InJasonsGarage  6 років тому

      Call Frankenstein and ask them, they have different prices for different features.

  • @tomconner5067
    @tomconner5067 11 місяців тому

    Kevin James?

  • @joehiden7475
    @joehiden7475 3 роки тому

    Why hasn't Chevy done a recall and fixed this issue? Makes no sense to me.

    • @InJasonsGarage
      @InJasonsGarage  3 роки тому

      Ever seen the movie Fight Club by any chance?

  • @SUBIESAMURAI07
    @SUBIESAMURAI07 6 років тому

    In Holland its 6000€ .. Guys dont buy z06

  • @all4bspinnin311
    @all4bspinnin311 6 років тому

    reworking the guides isnt going to fix the problem. Its the valvetrain thats flawed by its design.

    • @ssoffshore5111
      @ssoffshore5111 5 років тому

      In what way?

    • @all4bspinnin311
      @all4bspinnin311 5 років тому +2

      the offset rocker is the problem. It causes side load and wears out the guide

    • @ssoffshore5111
      @ssoffshore5111 5 років тому

      While I tend to agree there's still some underlying problem with these heads, it's still odd some can run for 150k or more without an issue and others are dropping a valve with less than 10k on them. One thing is for sure, I'm not certain "fixing" the valve guilds truly solves the problem. A big nut to swallow it you have to keep pulling the heads every 25k!

    • @all4bspinnin311
      @all4bspinnin311 5 років тому

      yea for sure. i've heard rumors about metallurgy causing lifter bleed down and all sorts of stuff. I hate to say it, but i think the solution is to find a set of ls3 based heads that are opened up as much as possible for the cubic inches of the 427.

    • @ssoffshore5111
      @ssoffshore5111 5 років тому +1

      I agree, swapping to LS3 heads and intake would take care of the problem, but it's also a significant step backwards regarding power loss. The difference between ported LS3 heads and ported LS7 heads has to be 30 hp, probably a lot more! Part of me wants to just say F-it and run the factory heads until it nukes, then pull the engine and throw a crate LS3 in there with a SC... It would probably make a lot more power and actually be reliable! Urrrgggg, this problem really sours an otherwise awesome car!