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55' Chevy "GASSER" Build UP... Yeah, another one

Discussion in 'The Hokey Ass Message Board' started by Chopperman, Apr 10, 2010.

  1. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

  2. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    so after go back and fourth on some things, I finally decided on an engine.

    Going with a brand spanking new GM all forged, hydraulic roller BBC 502:D Should be here in about a week:D
     

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  3. ***Area-51***
    Joined: Mar 25, 2005
    Posts: 710

    ***Area-51***
    ALLIANCE MEMBER
    from Ohio

    cant hardly go wrong there...which 502 is it? gonna put the blower on it?
     
  4. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    yup. it has a final comp ratio of 8.75-1


    When it came down to it, i just didn't real warm and fuzzy about mail ordering a performace reman from someone i dont know and I have had REALLY bad experiences with machine shops dragging their feet, not doing what they say, cutting corners etc. I just don't trust them.

    I feel very comfortable in my purchase on this crate engine. Plus I get to tell people I have a 502:cool:
     
  5. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    There is no replacement for displacement, and torque is king. These 502 c.i.d. cast iron 4-bolt mains with 1-piece rear main seals with approximately 8.75:1 compression and 450 hp at 5,250 rpm and 550 ft./lbs. of torque at 3,500 rpm. These blocks are fit with 1053 forged steel crankshafts, forged aluminum pistons with forged steel shot peened rods with 7/16 in. bolts. Hydraulic roller camshafts with .510 in. intake lift, .540 in. exhaust lift and duration at .050 in. for intake is 211 degrees, and 230 degrees for exhaust. Cast Iron cylinder heads with 118cc combustion chambers with 2.19 in. intake, and 1.88 in. exhaust valves. Rock arms are installed with 1.7:1 ratio. They are then topped off with aluminum dual plane intake manifolds and dress the engine with a cast iron water pump, 6-quart oil pan, windage tray, 14 in. flexplate and torsional damper. So, all you need to do is provide an 750 cfm carburetor, HEI ignition system, headers with 2 in. diameter by 30 in. long primaries and low restriction mufflers and a car with big sticky tires. These 502 HO crate engines require electric fuel pumps because the 502 GEN VI blocks have no mechanical fuel pump bosses. The 502 HO is not intended for marine use, and should only be used in 1978 and earlier pre-emissions street vehicles or any year off road vehicles.
     
  6. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    I'm getting al gitty waiting for this bad boy to show up :cool:
     
  7. UnsettledParadox
    Joined: Apr 25, 2007
    Posts: 1,107

    UnsettledParadox
    Member

    i dont like the valve covers but big blocks are king!
     
  8. wingedexpress
    Joined: Dec 24, 2006
    Posts: 894

    wingedexpress

    You are right thinking this way.I have seen high dollar race engines after being torn down just to find stock replacement or cheap parts inside.If you talk on the phone and they don't give you all the details pass on the deal.Do you get a warranty from gm?
     
  9. well it looks like your blower isn't going to work out and you should just send it to me...lol
     
  10. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    funny:D
     
  11. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    I have some vintage finned weiands for it
     
  12. ***Area-51***
    Joined: Mar 25, 2005
    Posts: 710

    ***Area-51***
    ALLIANCE MEMBER
    from Ohio

    did it show up yet?
     
  13. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    :D:D:D

    going in tomorrow


    [​IMG]
     
  14. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    few updates. Short day, but I got some stuff done.

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
  15. GaryB
    Joined: Dec 19, 2008
    Posts: 3,529

    GaryB
    Member
    from Reno,nv

    thats some blowed up motor, damn!
     
  16. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    Yup.. I've blown engines before, but this one straight up went BOOM !
     
  17. sixpac
    Joined: Dec 15, 2002
    Posts: 553

    sixpac
    Member
    from Courtenay

    Ouch thats amazing how things get so bent and twisted. Well now you get a new one. Be careful this time.
     
  18. Redz Rodz
    Joined: Oct 4, 2002
    Posts: 490

    Redz Rodz
    Member

    chopperman what kind of rpm's to get that kind of damage ?? man i bet that did rattle !!!
     
  19. GaryB
    Joined: Dec 19, 2008
    Posts: 3,529

    GaryB
    Member
    from Reno,nv

    ^yeah,I've had a couple trans look like that.but not a engine
     
  20. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    I wanna say it let go at like 5800, but it was pretty much a stock motor that had bandaids all over it ( two sleeves and some other funky stuff )

    I knew it was gonna go.

    It will be interesting driving it with the 502 and some more boost.:D
     
  21. Hollywood-East
    Joined: Mar 13, 2008
    Posts: 1,402

    Hollywood-East
    Member

    Damn... Them are a whole lotta offerings to the Gods of Speed!:eek:
     
  22. BIGREDTODD
    Joined: Jan 9, 2007
    Posts: 2,848

    BIGREDTODD
    ALLIANCE MEMBER

  23. ***Area-51***
    Joined: Mar 25, 2005
    Posts: 710

    ***Area-51***
    ALLIANCE MEMBER
    from Ohio

    Cool! making some progress now.
     
  24. truckjunky24
    Joined: Jan 18, 2008
    Posts: 176

    truckjunky24
    Member

    Chopperman, not telling you how too do it, But why did you bolt the converter to the motor and not put it in the trans too make sure it goes in the trans pump ??? it will bolt up if not in the pump! if not in, new trans time!!! it will kill trans pump when you fire it up!!!!! Just asking!!
     
  25. brewster55
    Joined: Sep 2, 2010
    Posts: 149

    brewster55
    Member


    good eye!

    thats bad news.
     
  26. truckjunky24
    Joined: Jan 18, 2008
    Posts: 176

    truckjunky24
    Member

    Been there , done that when i was younger and knew it all!!! LOL!!
     
  27. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    Your the second guy to notice:D

    I do this all the time. There is plenty of room in there and it slipped right in with no binding at all. I just make sure to visually line the pump gear up vertical with a screwdriver and then rotate the engine assy over to match prior to dropping it in. All is good.

    I got a perfect matting surface block to tranny on the first shot. If I was off on the pump, I wouldn't be able to mount the block to the trans without a 1/2 gap and then wrenching down and binding the converter against the pump housing (that would be bad)

    Not recommending this method for everyone, but it seems to work for me.:D
     
  28. Chopperman
    Joined: Sep 26, 2006
    Posts: 1,258

    Chopperman
    Member

    picked up a few things to help tame the beast a bit
    [​IMG]
     
  29. GassersGarage
    Joined: Jul 1, 2007
    Posts: 4,728

    GassersGarage
    Member

    Car Craft stuck a blower on a crate 502, under-driven, and got 600 hp. I went with the speedomotive 468 with dual quads. It was the cheapest deal I could find and after 2 years, it's still a great motor.
     
  30. HotRod60F100
    Joined: Jul 13, 2004
    Posts: 1,197

    HotRod60F100
    Member

    Oooo she'll be back on the prowl in no time now!
     

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