Re: 340 or 360 Which one is a better build????
[Re: MoparforLife]
#480954
09/27/09 09:10 AM
09/27/09 09:10 AM
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Joined: May 2004
Posts: 533 North Dakota
440abody
mopar
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mopar
Joined: May 2004
Posts: 533
North Dakota
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360; just for the exact reasons that Moparforlife stated. They are far more plentiful, and in my opinion there are more parts available(stroker kits etc). Besides this also opens up an other possibility of using a Magnum motor vs the LA. Besides if you decide to build the car into a clone(tribute) a 360 visually will look identical to a 340.
73 Dart Swinger 440/727 8.75 w/3.55's 34 Ford 3w coupe with a soon to be 1958 392HEMI!
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Re: 340 or 360 Which one is a better build????
[Re: tee-john]
#480955
09/27/09 10:23 AM
09/27/09 10:23 AM
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Joined: Jan 2006
Posts: 8,162 USA
360view
Moparts resident spammer
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Moparts resident spammer
Joined: Jan 2006
Posts: 8,162
USA
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the 340 versus 360 debate can go on endlessly, but it boils down to 'what stroke length' is best?' In this ongoing quest there is a recent development: When Ford recently designed a new V8 they used an even longer [edit] stroke than 3.58 inches and more similar to dodge V10 selection: http://www.themustangnews.com/carnews_09/0909-ford-6.2.v8-engine-137.htmdoes the engine care what the stroke is, or does it care what the ring friction is?
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Re: 340 or 360 Which one is a better build????
[Re: 360view]
#480956
09/27/09 10:35 AM
09/27/09 10:35 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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dollar for dollar spent, the 360 will ALWAYS make more power than the 340 when building a bare block.
--if you put the same cam, heads, intake and carb on the 340 and the 360, built the short blocks with stock cranks, rods and use pistons that give you an equal compression ratio between the 2, it's a no brainer...the 360 will win.
spend your money on a 360 stroker.
408 is the common stroker size, and can make very good power and still be streetable. lotta guys running them in Dakota's dipping into the 12s with a 4,000+lb truck, and still passing emissions with them.
**Photobucket sucks**
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Re: 340 or 360 Which one is a better build????
[Re: 70Cuda383]
#480957
09/27/09 11:00 AM
09/27/09 11:00 AM
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Joined: Jun 2003
Posts: 4,872 connecticut
pnypwr
master
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master
Joined: Jun 2003
Posts: 4,872
connecticut
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in stock form a 340s better, your 318 parts will bolt right on...eg oil pan, tans t. converter if its an forged crank 340, flywheel if its a std shift. you can go further with a 360 in the $$ dept because they are more plentiful. it really depends on what your looking to do
"Are you gonna bark all day lil doggy? Or are you gonna bite?"
05 ram 2500 ctd 74 gremlin x 360 65 mustang 347 70 coronet R/T 440 03 Mach 1
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Re: 340 or 360 Which one is a better build????
[Re: pnypwr]
#480958
09/27/09 11:07 AM
09/27/09 11:07 AM
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Joined: Jul 2003
Posts: 4,793 Holland MI Ottawa
2boltmain
master
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master
Joined: Jul 2003
Posts: 4,793
Holland MI Ottawa
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340s are great but c'mon, how many are out there REASONABLY priced? 340s made from 1968 to 1972-73. 360s made from 1972 to....2002
Keep old mopars alive.
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Re: 340 or 360 Which one is a better build????
[Re: 70Cuda383]
#480963
09/27/09 04:07 PM
09/27/09 04:07 PM
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Joined: Jan 2003
Posts: 28,621 Shopping @ HoBo Fright
340SIX
Doc Flappergas's Evil Twin
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Doc Flappergas's Evil Twin
Joined: Jan 2003
Posts: 28,621
Shopping @ HoBo Fright
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Quote:
dollar for dollar spent, the 360 will ALWAYS make more power than the 340 when building a bare block.
--if you put the same cam, heads, intake and carb on the 340 and the 360, built the short blocks with stock cranks, rods and use pistons that give you an equal compression ratio between the 2, it's a no brainer...the 360 will win.
spend your money on a 360 stroker.
408 is the common stroker size, and can make very good power and still be streetable. lotta guys running them in Dakota's dipping into the 12s with a 4,000+lb truck, and still passing emissions with them.
If I had to redo the stoker again from scrath i would do good used 350 core 360 or new 340 race block to get the most cubes. As I have to much inside and on top the stock block Few Pics of 423SIX
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Re: 340 or 360 Which one is a better build????
[Re: 340SIX]
#480964
09/27/09 07:01 PM
09/27/09 07:01 PM
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Joined: Jan 2006
Posts: 17 N.E. Texas
pyrogen
member
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member
Joined: Jan 2006
Posts: 17
N.E. Texas
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in theory, more displacement provides more potential power.
I have to ask, Do you already have an engine to build or are you trying to determine which one to purchase to build?
2001 Dodge Dakota R/T reg cab - slow
1970 Dodge Dart Swinger /6 auto - slower
1988 Toyota Pick-up 4wd - slowest
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Re: 340 or 360 Which one is a better build????
[Re: dodgefarmer]
#480968
09/28/09 08:26 AM
09/28/09 08:26 AM
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Joined: Jan 2003
Posts: 16,123 Grand Haven, MI
patrick
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
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start with a late model magnum 360. better heads, factory roller cam, you can build a hydraulic roller cammed motor much cheaper using factory parts.
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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Re: 340 or 360 Which one is a better build????
[Re: dodgefarmer]
#480969
09/28/09 08:34 AM
09/28/09 08:34 AM
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Joined: Apr 2009
Posts: 79 montreal, quebec, canada
jimmy71demon
member
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member
Joined: Apr 2009
Posts: 79
montreal, quebec, canada
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i am almost done building my 340 stroker. my 340 block was done so i had to find another one (i wanted to stay with the 340 block). it proved to be much harder than i thought to find a 340 block that was .020 over or less. (when its pretty much raining 360's) plus it was pricey. bang for ur buck ull prolly find a 360 out of a truck or a van or something for a hell of a lot cheaper than a 340. after that i dont c there being much difference in price for parts. p.s. im told my stroker with my mildly ported J heads and .488 lift comp cam should put out somewhere around 425-450 hp
Im goin fast Mom!
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Re: 340 or 360 Which one is a better build????
[Re: patrick]
#480970
09/28/09 10:00 AM
09/28/09 10:00 AM
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Joined: Jan 2005
Posts: 4,862 the frozen wastes...
Pale_Roader
Swears too much
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Swears too much
Joined: Jan 2005
Posts: 4,862
the frozen wastes...
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Quote:
start with a late model magnum 360. better heads, factory roller cam, you can build a hydraulic roller cammed motor much cheaper using factory parts.
Thats your answer right there. SO many improvements over the older stuff... and cheap cheap cheap! There was a thread on here a while back on how little it takes to 'make' that MP 300HP 360 crate engine out ov a junkyard roller 360. Even the 380HP one isn't far off if i remember right...
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Re: 340 or 360 Which one is a better build????
[Re: Pale_Roader]
#480971
09/28/09 10:16 AM
09/28/09 10:16 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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As said w stock strokes definitely a 360 vs a 340 for the reasons stated. With the 4" stroke there's only an 8 ci difference between the 2 (30 over 360 vs a 30 over 340) so I'd still go w the cheaper 360 block unless a person already has a 340 block on hand.
live every 24 hour block of time like it's your last day on earth
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