340 or 440?

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    Author Topic: 340 or 440?  (Read 3302 times)

    Offline 4drbrnko

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    340 or 440?
    « on: June 22, 2005 - 06:49:00 PM »
    Wasn't sure maybe this goes in the engine section.  :dontknow:
    My '73 is # matching, plan was to store the #'s motor and go with a stroked 340 set-up. The one I was considering was rated up to 500-600 hp and streetable.
    My last trip home I went over to check on my dad's Torino at the mechanic and he said he had just picked up a '69 440HP with performance heads(?) and Eidelbrock intake plus some other stuff.

    So, the big Q is should I consider a 440 swap instead of the stroker 340?
    I don't want to do anything to the car that could not be easily changed back if I were to fully restore it.
    If I stick in a 440 would I have to do any cutting or will it slip right in?

    Thanks
    Jeff
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    Offline Carlwalski

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    Re: 340 or 440?
    « Reply #1 on: June 22, 2005 - 07:06:19 PM »


    Just new big block engine mounts. I'm also sure you may possibly need a Big block trans nell housing.  :???:


    (How'd I do CP?)  :D :laughing:

    Oh, and DEFINITELY go for that 440 thats the BEST year!!!!!!!!!  :drool:
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    Offline 4drbrnko

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    Re: 340 or 440?
    « Reply #2 on: June 22, 2005 - 07:36:58 PM »
    Yup, figured I'd need a BB 727 and new mounts, as long as the 440 will slip in without cutting anything.
    I realy liked the thought of the stroked 340, but I think I can get the hp out of the 440 cheaper? (is there anything cheap when it comes to Mopars?)
    Looks like I need to talk to my mechanic.
    I just foung out about a factory replacement Hemi that's still sitting at a dealership that was ordered for a planned swap into a '72 Charger that never happened.............Hmmmmmmmmm.  ::)
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    Offline Carlwalski

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    Re: 340 or 440?
    « Reply #3 on: June 22, 2005 - 07:42:35 PM »

    Depend on how far you want to go?  :dontknow:

    Just a clean out with fresh new parts and a shave of the clyindas (0.10 over)

    Or all out hp monster which by the sounds of it is the way you want to go.


    $3,500 is a good ball park figure. Chryco will fill you in and you may also want to check the tech archieves forum as I'm sure there is a rebuild or engine mods and prices etc. Basically what you can get and for what price. Hope I'm help.  ;D


    (PS: That last post is meant ot be "B"ell housing.  :laughing:
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    1970 Dodge Challenger R/T
    White, License Plate, 0A-5599
    540ci Aluminium Hemi, F.A.S.T EFI
    TF-727 Gear Vendor OD, Dana 60

    Offline 4drbrnko

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    Re: 340 or 440?
    « Reply #4 on: June 22, 2005 - 07:54:45 PM »
    Quote from: NZ440R/T on June 22, 2005 - 07:42:35 PM

    (PS: That last post is meant ot be "B"ell housing. :laughing:
    Yeah, I figured, your posts have so far to travel It's a wonder they aren't more garbled. Those trans continental internet lines can get crossed sometimes.   :eeksmall:   :laughing:
    Thanks.
    And yes, I would like to have a fairly hi output motor, but I still want to be able to drive it without twisting it in two........ that would suck.  :grinyes:
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    Offline Carlwalski

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    Re: 340 or 440?
    « Reply #5 on: June 22, 2005 - 08:00:58 PM »
    Quote from: 4drbrnko on June 22, 2005 - 07:54:45 PM
    Yeah, I figured, your posts have so far to travel It's a wonder they aren't more garbled. Those trans continental internet lines can get crossed sometimes.   :eeksmall:   :laughing:
    Thanks.
    And yes, I would like to have a fairly hi output motor, but I still want to be able to drive it without twisting it in two........ that would suck.  :grinyes:

     :laughup: Yeah I'll say, it's quite awesome when you think of how far these words go to.  :o 
    Thousands and thousands of miles to your screen.  :eeksmall:


    Yip, thats the way you want it, a mild to warm engine so it doesn't get hot.  :fire:  :beer:

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    1970 Dodge Challenger R/T
    White, License Plate, 0A-5599
    540ci Aluminium Hemi, F.A.S.T EFI
    TF-727 Gear Vendor OD, Dana 60

    Offline Burpin Chunks

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    Re: 340 or 440?
    « Reply #6 on: June 23, 2005 - 12:42:04 AM »
    Burpin is going to rebuild his 340 soon. What set up were you looking at to get the 500 horses.

    CHRYCO do you know of a hot setup that Burpin can copy for his 340. It will need to run off of pump gas and beable to handle A/C. And besides the monster torque and power nothing else really matters. Its not a daily driver.
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    Offline Chryco Psycho

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    Re: 340 or 440?
    « Reply #7 on: June 23, 2005 - 12:45:34 AM »
    We built a really strong 360 , very streetable with 280 RWHP & dead flat power curve
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    Offline Burpin Chunks

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    Re: 340 or 440?
    « Reply #8 on: June 23, 2005 - 12:48:39 AM »
    Will that set up work with the 340. And burpin isnt use to RWHP terms. Tell it like the magazines would. How much HP that way.
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    Offline Chryco Psycho

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    Re: 340 or 440?
    « Reply #9 on: June 23, 2005 - 12:49:53 AM »
    over 400 gross HP in 70 terms , the 340 will be down on torque due to stroke or lack thereof
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    Offline Burpin Chunks

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    Re: 340 or 440?
    « Reply #10 on: June 23, 2005 - 12:51:40 AM »
    What compression was this set up. And if high compression would be beneficial to lower it to run blower.
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    Offline Chryco Psycho

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    Re: 340 or 440?
    « Reply #11 on: June 23, 2005 - 12:54:41 AM »
    close to 10 :1
     with a blower you Have to reduce compression ratio
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    Offline Burpin Chunks

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    Re: 340 or 440?
    « Reply #12 on: June 23, 2005 - 12:56:13 AM »
    Quote from: Burpin Chunks on June 23, 2005 - 12:51:40 AM
    What compression was this set up. And if high compression would be beneficial to lower it to run blower.

    right, but how much would I gain or lose by lowering it to run the blower. Burpin mainly just likes the look of the old type blower sticking out of the hood.
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    Offline 4drbrnko

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    Re: 340 or 440?
    « Reply #13 on: June 23, 2005 - 11:37:30 PM »
    Just heard back on the 440:  long block(1969), 2 sets of extra heads(906 and magnum) and a Torker 440 intake.
    $500
    Trying to get whether it's an HP block or not.
    $500 seem about right for what I'd be getting?
    I trust the guy, he's pretty straight when it comes down to it, he's just a big Chebby guy.
    I'm just not up on prices for 440's.  :dontknow:

    Also, I just need to "crank up " the torsionbars to compensate for the extra weight of the 440?
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    Offline 1973challenger360

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    Re: 340 or 440?
    « Reply #14 on: June 24, 2005 - 12:04:23 PM »
    the tortion bars are different.   I know someone who put a 440 in a scamp /6car the tortion bar snapped lucky for him it was sitting in the garage.

    build the 360   and put the 340 decals on it.

    Roots blowers suck  :ack:  its better to blow a carb than suck a carb. they do make blow through carbs now but there still ugly. unless you have air shocks, huge rubber out the side, and a 70's paint job.

    Turbo-   they have rear mounted ones now. and prochargers/paxtons superchargers.

    ok its a chevy site just look at the turbo set up/ and dont hit a bump.

    http://www.chevyhiperformance.com/techarticles/148_0502_turbo/   
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