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Thread: Dart 345 Pro 1's

  1. #1
    Senior Member
    Join Date
    Feb 2009
    Location
    Irvine, CA
    Posts
    2,885
    1 set of Dart Pro1 345 heads, port work by Wes King, new valve guides and seats by AJPE, Manley Stainless Steel Severe Duty Valves (2.30/1.88), fresh valve job by Alan Johnson.
    They had small repair. but I spent over $1600 to Johnson to repair/install new seats/pressure test/flow/perform valve job/install new guides ...
    Had the deck surface checked by Bob McKray & secondary flow performed to verify proper repair.
    New castings cost about $1200k bare, port work $1200, severe duty stainless valves $500, AJ valve job, etc. etc. etc.
    Ready for someone who is building a motor, all you need is your cam specs to buy your springs, retainers & keepers, etc ... and you're ready to go.
    $2100 out the door and they're yours.
    http://www.***boat.com/image_center/..._20_07_013.jpg
    http://www.***boat.com/image_center/..._20_07_012.jpg
    http://www.***boat.com/image_center/..._20_07_014.jpg

  2. #2
    Machinist
    Do you know what weld process they used to repair that, with my TIG the added metal is more shiny than the parent casting, that is really dull - like a DC cold weld...

  3. #3
    smokinflatties
    :idea:

  4. #4
    Senior Member
    Join Date
    Feb 2009
    Location
    Irvine, CA
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    2,885
    Do you know what weld process they used to repair that, with my TIG the added metal is more shiny than the parent casting, that is really dull - like a DC cold weld...
    hmmm ... not sure as I was not there ... pretty sure that they were tig welded & then decked to true the surface.
    But AJPE knows what they are doing ... http://www.alanjohnson.com/
    Steelcomp Scott has seen these heads first hand & can speak for the repairs and condition ...

  5. #5
    469 the coyote
    They are tig welded. That is how the weld always looks after you surface them. I have done a bunch of heads like that when I worked at groses shop. And AJ is the best of the best

  6. #6
    Machinist
    They are tig welded. That is how the weld always looks after you surface them. I have done a bunch of heads like that when I worked at groses shop. And AJ is the best of the best
    A cold weld will be dull, I weld and surface heads all the time, they never come out dull. Not saying it's a bad repair - the chamber match looks perfect.
    FYI: A DC Cold weld is a form of TIG welding, it is a newer process and one that my machine will not do. I do AC for aluminum welding and the welds are always shiny, that is why I was asking the specific process, not to discredit the work, simply curious if it is the new process type weld. It can be better for more in depth welding becuase you don't need to re-heat treat the head.

  7. #7
    Blown to the Bone
    A cold weld will be dull, I weld and surface heads all the time, they never come out dull. Not saying it's a bad repair - the chamber match looks perfect.
    FYI: A DC Cold weld is a form of TIG welding, it is a newer process and one that my machine will not do. I do AC for aluminum welding and the welds are always shiny, that is why I was asking the specific process, not to discredit the work, simply curious if it is the new process type weld. It can be better for more in depth welding becuase you don't need to re-heat treat the head.
    What alloy rod do you use ?

  8. #8
    Machinist
    A356

  9. #9
    Senior Member
    Join Date
    Feb 2009
    Location
    Irvine, CA
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    2,885
    bump ... still got them, ready to go ... make me an offer close to asking price, you might be suprised ... I might take it
    I've been asked if they were okay to bolt on and would there be any problems. The answer is yes, they are perfectly fine. I have been assured by Bob McKray (cylinder head specialist) that they are good to go ... they are in better shape than when they came out of the box.
    (port work/valvejob/etc) ...
    make me an offer I can't refuse

  10. #10
    Havasu Carrera
    Hey Brian! Long time no see. I was just Wondering what the differences between the edelbrock rpm heads and these would be? I don't think they're in the budget or that I really need them but bump and a little lesson? maybe? Valves larger? Exhaust ports larger? blower aplication around 500 ci maybe 540?

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