72-76 455 Engine Build

Discussion in 'Street/strip 400/430/455' started by Christopher Spouse Drew, Jun 16, 2018.

  1. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    This is not ideal. So im tearing down my engine and i find what no one wants to see, heavy rust in the cylinders and water jackets :mad: I hope it can be bored out!

    The engine looks to be original, I thought it was taken care of better than this by the previous owner :(
     

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  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    That's why any engine you can't hear run is nothing more than a core. People will lie their butts off to make money.
     
  3. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Yeah i knew the risk and no matter what condition the cylinders were I was gonna bore it 30 over but now i might have to bore it more or it might be too far gone. Well see what happens. Im gonna soak the block in a rust dissolver like Eastwood Rust Dissolver or Evaporust. I have to see if there is bad pitting.
     
  4. hugger

    hugger Well-Known Member

    No need to go thru that trouble, take some 60grit paper and sand it out, it will be fine more than likely be fine. Go .038 over for a 464
     
  5. 300sbb_overkill

    300sbb_overkill WWG1WGA. MAGA

    If its only 1 or 2 cylinders that needs more boring than the rest of them you can always have those offending cylinders sleeved.

    Make sure you have the block sonic tested before spending any $$ on it even if you decide to have it sleeved to make sure you're working with a good block. GL
     
  6. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Yeah im getting it sonic checked and magnafluxing the crank and heads.
     
  7. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Anyone have a trick that doesn't require me buying a valve spring compressor tool to disassemble the heads? I dont mind buying one but I have a lot of clamps and tools and want to know if there's another way.
     
  8. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Why not just let the machine shop do it?
     
  9. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Im soaking parts in a rust dissolver before I take it to the machine shop. I need to see what im working with.
     
  10. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    So does the machine shop.:)
     
  11. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Im going into the restoration business after I graduate and i want to do as much as I can, and I got them off without the tool :)
     
    300sbb_overkill likes this.
  12. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Hey guys, when you get your blocks hot tanked, is the rust removed? I hear both ways, it does or it doesnt.

    I just soaked my heads in rust dissolver and it did wonders, they were coated in heavy rust(pics below), but I would have to buy so much evaporust to soak the whole block.
     

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  13. Schurkey

    Schurkey Silver Level contributor

    'Hot Tank"? I don't know of a shop that still has one of those. The EPA got nasty about disposing of the sludge they generate.

    Machine shops now generally use a shot-blast cabinet along with a degreasing oven. The oven bakes the grease to a cinder and then it falls off the parts. Anything the shot touches, is cleaned to bare metal. Looks like new. This includes the water jacket, (or most of it) as the shot is pummeled in through the core plug holes.

    The downside is that it can peen machined surfaces, and maybe even fold-over some metal. You might need to deburr the edges of the lifter bores, for example. Cramming a cork into each lifter bore can solve this minor problem.

    Closest thing my favorite machine shop has to a "hot tank" is a jet-wash cabinet. Mostly used for aluminum parts, so the cleaning solution is not as strong as would be used for iron.
     
    300sbb_overkill likes this.
  14. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    A couple of the machine shops I contacted said they had hot tanks, I would prefer the pellet blasting. And thank you for the tips with the cork.
     
  15. DasRottweiler

    DasRottweiler -BuickAddict-

    Hot tank that thing! If you have access, why wouldn't ya? It'll clean out the water jackets nicely. Then ask the machinist what your next step is following sonic testing . They may bore to .o3o take a look and decide then if bigger is necessary. Have it aligned bored as well. A proper start makes for a proper finish.... Good luck, Jim
     
    Last edited: Aug 3, 2018
  16. HotRodRivi

    HotRodRivi Tomahawks sighted overseas

    You can and i do take apart the valves in a nice quickie way. I use a 2 lb brass hammer, 1/2 in drive 3/4 or 13/16ths deeep socket. Place the socket on the valve thing on top. You have to hold it but leave the bottom of your hand off it. Strike tbe socket hard enough to depress the spring about 1/2 inch. The keepers will pop out . you have to get the feel for how much to squeez the socket to let it slip through your hands when you hit it and let it bounce up slightly. Its the quickest way i know
     
  17. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Thank you, Anson, thats what I did a few weeks ago to get them out, it worked well.
     
  18. HotRodRivi

    HotRodRivi Tomahawks sighted overseas

    Sweet. I wish goin back together were that easy. For that TA perf has tbe best tool for your money
     
  19. Christopher Spouse Drew

    Christopher Spouse Drew Well-Known Member

    Yeah going back together will take some time. I'm gonna go slow and be precise and I need to get a few specialty tools.
     
  20. RG67BEAST

    RG67BEAST Platinum Level Contributor

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