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Re: 71 cuda - 340 lost, what`s the best replacement?
[Re: ScottSmith_Harms]
#1711018
12/16/14 12:13 AM
12/16/14 12:13 AM
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Joined: Jul 2007
Posts: 11,836
Florida
mopar346
Let me tell ya about fat chicks!
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Let me tell ya about fat chicks!
Joined: Jul 2007
Posts: 11,836
Florida
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I agree with Scott about finding a 340 block/engine if you can and store it until such time as you decide you want it. As for your current plan, I would go with a 360 based 408 and I would use the K-1 technologies rotating assembly, a pain to get but the quality is second to none from what I can see. And yea, if I need a small block this is the route I would go, why give up the cubes and the power.
Careful, your character's showing!
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Re: 71 cuda - 340 lost, what`s the best replacement?
[Re: jose jones]
#1711022
12/16/14 08:06 AM
12/16/14 08:06 AM
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Joined: Nov 2014
Posts: 25
FL/Europe
Delta
OP
member
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OP
member
Joined: Nov 2014
Posts: 25
FL/Europe
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it was big coincidence, I met a guy, and he mentioned during conversation, his father has some old american car, something like plymouth, in his garage, sitting there from 1991. Later he told me it is something like cuda, 71 or so. Uhhh. I didn`t belive it that much until I went to his garage. It was there. In village close to Prague. Since I bought it and post it locally, I got few pictures from its history, this Cuda was in Europe at least from 80s. It was like an alien from different planet here, all people who visited US cars meetings in 80s knew it and remembered the car. I investigated one of the owners (he bought it in Slovakia in 85). Quote:
Hey Delta, Congrats on the 71 Cuda, where did you find it Berlin? Boston? Topeka? looks like a nice project 
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Re: 71 cuda - 340 lost, what`s the best replacement?
[Re: ErikR]
#1711025
12/17/14 12:56 PM
12/17/14 12:56 PM
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Joined: Jan 2003
Posts: 42,714
Spokane Washington
ScottSmith_Harms
Mr Wizzard
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Mr Wizzard
Joined: Jan 2003
Posts: 42,714
Spokane Washington
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Its really nothing exotic, pretty easy numbers to hit with a stroker crank and some good heads. Here are the basics; Mine uses a Scat 4.125 crank, Diamond lightweight pistons, Carillo rods, good port job on the heads (spend your money on head work) flat tappet hyd cam (its pretty aggresive but not noisey). The carb, intake, and manifolds are 100% stock, manifolds were Extrude Honed but that only gained 3hp. The same engine would easily make over 500hp with an intake & carb swap and headers.
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Re: 71 cuda - 340 lost, what`s the best replacement?
[Re: skicker]
#1711027
12/17/14 04:07 PM
12/17/14 04:07 PM
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Joined: Jan 2003
Posts: 11,705
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,705
Portage,michigan
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I would absolutely put another 340 in it, either 416 version or stock stroke. Regards price, I have never understood why people say how much more a 340 is than a 360. Just goes back to Mopar guys being ultra cheap skates in a ton of cases. You can find a good 360 block for 100-200. You can find a good 340 block for 500-700. Other than that trivial difference( in the whole scheme of building a motor and putting it in a 30-40 thousand dollar car like the OP)...The difference amounts to next to nothing If someone is going to whine about 4 or 5 hundred bucks difference in buying a block and then building a motor with it being a make or break thing, they probably have zero business starting such an undertaking in the first place. If it came with a 340, try and put one back in it.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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Re: 71 cuda - 340 lost, what`s the best replacement?
[Re: ScottSmith_Harms]
#1711030
12/17/14 07:35 PM
12/17/14 07:35 PM
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Joined: Sep 2004
Posts: 6,906
IL, Aurora
ademon
master
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master
Joined: Sep 2004
Posts: 6,906
IL, Aurora
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Quote:
That's a rare/special car, weather you decide to install a close replacement now (or not) I would still recommend procuring the best/most accurate replacement you can find even if you keep it under the bench and decide to install something else. 1971 340's also have some one year only parts that you should also try to locate while you can (short list of larger items below).
1971 4972s Carter Thermo-Quad Carburetor
DR1114429 Idle Stop Solenoid
1970-1971 340 Air Cleaner
1970-71 Valve covers
1970-71 340 Oil Pan (294 stamped into the bottom)
1971 intake manifold- Casting # 3512100
Exhaust manifolds, casting #3418621 Drivers Side & #3418623 Passenger Side (the hard part is finding both with casting dates prior to your cars SPD)
You can learn more about correct parts details (Here ).
As far as a replacement 340 block goes your choices are pretty straight forward, most opinions will vary but the following are my personal choice list, my most to least favorite in order:
1. Find the original numbers matching block (long shot but nothing else will be 100% "correct" )
2. 340 block, warranty replacement or service block. I like these because the casting date doesn't matter so much and it won't have another cars VIN sequence number on it.
3. 340 block from another car which has an assembly date before and close to your cars scheduled production date.
4. 340 block from another 1971 model year car (any date)
5. 340 block, any year casting you can find
6. 340 block, new Mopar replacement "Resto 340" block
7. 360 block, any year
I have all those parts, plus the warranty 71 block. Any chance of you shipping the car to me??? PLEASE!! 
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Re: 71 cuda - 340 lost, what`s the best replacement?
[Re: ScottSmith_Harms]
#1711032
12/17/14 08:20 PM
12/17/14 08:20 PM
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Joined: Nov 2014
Posts: 25
FL/Europe
Delta
OP
member
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OP
member
Joined: Nov 2014
Posts: 25
FL/Europe
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why not, maybe one day I decide to sell it  it already happened once, I bought a car in US, shipped to Europe, and then sold it and shipped back to US We have one global market, because of internet Quote:
So do I ademon, Im guessing niether one of us us getting that Cuda
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Re: 71 cuda - 340 lost, what`s the best replacement?
[Re: Delta]
#1711035
12/17/14 09:34 PM
12/17/14 09:34 PM
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Joined: Sep 2003
Posts: 2,966
Wendy, I'm home.
dstryr
master
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master
Joined: Sep 2003
Posts: 2,966
Wendy, I'm home.
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Nice 'cuda...I really like orange with black top cars...my father bought a '69 bee in 2006 V2/black vinyl top and my 'other' car, not a mopar, Carousel Red w/ Black vinyl top '69 Judge... Great find and I'm looking forward to updates.
dstryr, since 1986.
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) 
