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I finally bought a car - time to start working on it

Discussion in 'GM Cars' started by barrrf, May 24, 2012.

  1. Oktain

    Oktain Canuck Admin Staff Member

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    4,917
    Good that you caught that crack though. Anxiously awaiting to see what's next.
     
  2. barrrf

    barrrf Active Member

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    781
    Picked up an Iron Head LQ4 and 4L80E to build up for it.
    Not really an update to the car.............kinda lame. Waiting on the machine shop to give it back so I can build it.

    Plan for that is-
    - 243s shaved to 61cc and ported - ARP head bolts
    - Reuse polished crank and piston assemblies - factory cap bolts
    - OEM MLS gaskets
    - Reuse rockers with Straub Trunion upgrade
    - LS7 lifters
    - BTR pushrods
    - BTR spec'd cam
    - truck intake
    - 8.1 injectors
    - Melling erl pump
    - LS2 timing chain

    The idear is to run it like this for a year and use the funds from 396/4 speed sale to boost it.

    Final CR should be 10.7:1. I'll tune it. Going to run a 4L80E with transgoHD2 kit. Maybe someday paddles.
     
    mike. likes this.
  3. Khaos

    Khaos Bed Dent Club Founder

    Messages:
    20,562
    Any ideas on what cam specs you're looking at?

    And lemme get dat 396/4 speed. Would go great in my dad's truck.
     
  4. barrrf

    barrrf Active Member

    Messages:
    781
    Just submitted the online form for BTR to spec out a cam. Once I get feedback on it, I'll post. Not looking for anything overly aggressive.
     
    mike. and Khaos like this.
  5. barrrf

    barrrf Active Member

    Messages:
    781
    Just got off the phone with the machine shop..............looks like we're doing a 370in build :pepper: :okay: :pepper:
     
    mike. and Khaos like this.
  6. Tiki

    Tiki Well-Known Member

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    1,357
    Sweetness, going to be done and ready by early september?
     
  7. Huck

    Huck GSU Eagle

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    11,573
    Thing is gonna be wicked. That's a lot of compression for boost tho, what are your plans for that?

    Sent from my VS990 using Tapatalk
     
  8. barrrf

    barrrf Active Member

    Messages:
    781
    The plan was to run it for a year or a few thousand miles to get it broken in. Then swap the shaved 243s for unshaved to drop the CR back to 9.5ish.

    So now that I have to build a 370 Im faced with limited options.
    - I cannot reuse stock pistons. Lets go shopping............
    - I find the only direct piston replacements available for a 6.098 rod in .030 over are hypereutectic. Keith Black Silv-o-lites are about the best - review and metallurgical. I can get away with a couple hundred bucks and still use the stock rods.
    - The other option is delay the completion of the build by a few months and bite the bullet and get h-beams and forged pistons. (Disclaimer: its not the money per se.........Ive got that. But I hate confrontation and my wife isnt excited about this engine project).
     
  9. Huck

    Huck GSU Eagle

    Messages:
    11,573
    I would hold off a little while and get the forged stuff. DNW tear motor apart when it goes boom if it could be avoided for just a little more money

    Sent from my VS990 using Tapatalk
     
  10. barrrf

    barrrf Active Member

    Messages:
    781
    Well, its really 5x more money. Looking at $200 vs $1000............I was going to reuse the stock junk anyways. And that was based off of the enormous amounts of people building junk yard boosted motors and surviving.

    Its more the thought of being able to run forged stuff that makes me want to do it.
     
  11. Huck

    Huck GSU Eagle

    Messages:
    11,573
    But realistically 1000 is cheap insurance. The way I look at it, the stock stuff is gonna fail eventually and then you'll have to tear into it again to install the forged stuff, plus fix the damage. This way you only do it once and you can turn up the boost a little more when you're ready

    Sent from my VS990 using Tapatalk
     
  12. Tiki

    Tiki Well-Known Member

    Messages:
    1,357
    How is that going to affect his mpgs doe?
     
    slicksierra likes this.
  13. Moore

    Moore Well-Known Member

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    1,139
    was something wrong with the motor you had, thats why its being rebuilt?
     
  14. barrrf

    barrrf Active Member

    Messages:
    781
    Well, I couldve not taken anything apart and just installed in the MM and it maybe wouldve run for awhile and I wouldnt have known anything was wrong. But, I cant leave ANYTHING alone, so when I removed the heads I saw some rust on a couple of the pistons and thought "hey, lets take the whole thing apart"............and now here I am.

    With that being said - Im going to run Scat 4340 forged I-Beam rods with ARP bolts (6.125" length, .927 Floating Pin) $340 and probably DSS Racing Forged 4030 Pistons ($480) with Mahle Piston Rings. Probably. IDK.
     
    Huck and Khaos like this.
  15. barrrf

    barrrf Active Member

    Messages:
    781
    Block is ready for pick up. New cam bearings were fitted. Decided on rods - using K1 H-Beams (CH6125ALLBLS8A) instead of the SCAT i-beams.

    Ive also decided on BTR Stage 2 Cam. Stage II 3 Bolt Cam 225/238 .612"/.585" 113+3.

    Finally, Ive got to take a break on the motor to do more interior work. Center console has been ordered.

    Its this console. Its a 'glass unit and it trim to fit. I'll probably set it up very similar except with black covering and a baseball stitch along the ridge to match the dash.

    [​IMG]
     
    Last edited: May 30, 2017
    Huck likes this.
  16. barrrf

    barrrf Active Member

    Messages:
    781
  17. Khaos

    Khaos Bed Dent Club Founder

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    20,562
  18. barrrf

    barrrf Active Member

    Messages:
    781
    Well, its in there but it was a HUGE bitch to put in. Got some wiring done. Wanted to fire it up over the holiday but Im an idiot and bought the wrong starter...……..

    [​IMG]
     
    lowlife08, Smith and dszx13 like this.
  19. Huck

    Huck GSU Eagle

    Messages:
    11,573
    :hng: Am very excite for burnout videos


    Sent from my iPhone using Tapatalk Pro
     
  20. barrrf

    barrrf Active Member

    Messages:
    781

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