Re: 340's Rule, 360's Drool !!
[Re: Dean_Kuzluzski]
#1692810
10/31/14 04:47 PM
10/31/14 04:47 PM
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Joined: Aug 2003
Posts: 3,249 Between a rock & a hard place
cudadoug
master
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master
Joined: Aug 2003
Posts: 3,249
Between a rock & a hard place
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Quote:
Gonna be a loooooong winter.
If the 360 ever came with a forged crank (production) it would be a total slamdunk.
Yea, tell that to the Stock and SS guys. Cast cranks are lighter, and if they can live in a low 10 second SS/JA environment, they'll live anywhere properly machined and built.
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Re: 340's Rule, 360's Drool !!
[Re: SRT6776]
#1692814
10/31/14 09:36 PM
10/31/14 09:36 PM
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Joined: Oct 2003
Posts: 7,864 Colorado
Leadfoot
master
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master
Joined: Oct 2003
Posts: 7,864
Colorado
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Quote:
Had a 372" 360 based engine 10 years ago, ran 10.98 NA on pump gas in a 2800# 69 Dart.
You sea level(ish) guys got it good. NA small blocks see the 10s up here too. It's just not as easy.
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Re: 340's Rule, 360's Drool !!
[Re: STEFF]
#1692815
10/31/14 10:52 PM
10/31/14 10:52 PM
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Joined: Dec 2006
Posts: 2,137 Byron, NY
W.I.N. Racing
top fuel
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top fuel
Joined: Dec 2006
Posts: 2,137
Byron, NY
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Arguing about which SB is better is like arguing if Syphilis or gonorrhea is better...
'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60 '01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust, '05 Dodge Magnum R/T - Too Much to list '60 Willys CJ5 '01 International LPX - Project,DT466, Allison '64 Plymouth Valiant, Inj 528 Hemi, 2spd
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Re: 340's Rule, 360's Drool !!
[Re: meus31]
#1692817
11/01/14 12:52 PM
11/01/14 12:52 PM
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Joined: Aug 2003
Posts: 5,025 new jersey usa
11secdart
master
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master
Joined: Aug 2003
Posts: 5,025
new jersey usa
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I`ve had numerous 340 combos in my Dart and ran good with them , but my current 360 combo is the fastest of all of them, I am making more power with less compression and cam than I ran in the 340. But then it could be my combination. My new almost complete combo: R3 based 408 with Indy 360-1 heads / pump gas combo I am hoping makes even more power.
68 Dart 410 / 904 92 D150 original owner 21 Ram 1500 Quad Cab, Big Horn , Hemi ,4x4 23 Audi Q5 16 Honda HRV
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Re: 340's Rule, 360's Drool !!
[Re: 65signet]
#1692821
11/01/14 04:31 PM
11/01/14 04:31 PM
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Joined: Jan 2003
Posts: 8,082 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,082
Tulsa OK
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I have had both, my 340 ran good but my 360 is faster. It should be though it has better everything in it.
My car was an original 340 car and that is stated on the hood plates. I often get asked what size motor and when I say 360 I get an odd look sometimes followed by "them 340s sure did run" I usually agree or depending on the person I will say yeah, but a 360 is bigger lol.
As far as the cast vs forges crank argument. Its well known that forged is better and I won't and can't argue thats it not. However I have broken a 340 crankshaft and my 360 crank was still alive when the thrust got eaten.
The 360 brings the cheap though no doubt. Mine wiped the thrust out 9 days before drag week this year. I bought a machined crankshaft and bearings kit from O'rielly auto for $188, and had it in less than 24 hours. It made the drive and is still together sofar lol.
68 Barracuda Formula S 340
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Re: 340's Rule, 360's Drool !!
[Re: STEFF]
#2722121
12/06/19 08:30 PM
12/06/19 08:30 PM
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Joined: Apr 2012
Posts: 186
B-Body Bull
member
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member
Joined: Apr 2012
Posts: 186
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Re: 340's Rule, 360's Drool !!
[Re: Cab_Burge]
#2722212
12/07/19 01:14 AM
12/07/19 01:14 AM
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Joined: Jan 2003
Posts: 3,122 Auburn WA
Dave_J
master
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master
Joined: Jan 2003
Posts: 3,122
Auburn WA
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340's.... you all are talking a 273 with a 4.125 stroke crank, right??? I bet you could take a lot of weight out of that crank during balancing.... I bet a 318 with a 4.125 stroker crank (396) will stomp most Chev 396's..... I have a 410 5.9 in the works.....
Retired, US ARMY 1973-1994 ASE mechanic, Electrical 1994-1997 Retired GTE/VERIZON/FRONTIER 1997-2015
Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.
03 Suzuki Burgman 650(Burger King) Scooter 65 Formula S Cuda 78 Little Red Express Truck 98 Buick Regal (wifes car)
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Re: 340's Rule, 360's Drool !!
[Re: J_BODY]
#2722338
12/07/19 04:21 PM
12/07/19 04:21 PM
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Joined: Jan 2003
Posts: 10,088 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,088
Frostbitefalls MN (Rocky&Bullw...
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For a street strip cheap build it would be hard to beat a 360 magnum with a reground cam. And a .030 set of pistons with EQ heads. Those heads really move some air with a little work. 400 to 450 hp depending on what you budget for valvetrain upgrades. If i ever do another 5.9/360 it will retain the stock rockers and lift will max at about .520 but still ought to make 425 hp?
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: 340's Rule, 360's Drool !!
[Re: Mr340]
#2722340
12/07/19 04:26 PM
12/07/19 04:26 PM
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Joined: Jan 2011
Posts: 16,096 Central Florida
larrymopar360
Stud Muffin
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Stud Muffin
Joined: Jan 2011
Posts: 16,096
Central Florida
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There's nothing magical about a 340. I'd rather start with a 360. More plentiful, less expensive. 20 more cubes is a bonus. Put a 4" stroke in a 340 and 360 and which is bigger now??? <img src="/ubbthreads/images/graemlins/punkrocka.gif" alt="" /> Exactly. And anyone with a 340 block or parts wants beaucoup bucks for them just because they are what they are. I have a stroked 360 to 410 cubes that's a beast! Torque monster.
Facts are stubborn things.
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Re: 340's Rule, 360's Drool !!
[Re: gregsdart]
#2722341
12/07/19 04:26 PM
12/07/19 04:26 PM
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Joined: Jan 2003
Posts: 1,238 North Central, Indiana
Roughbird72
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,238
North Central, Indiana
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The biggest difference in stock form, 340 ... pre EPA, 360 ... post EPA
Last edited by Roughbird72; 12/07/19 04:28 PM.
72 Plymouth Roadrunner 11.08@123.25
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Re: 340's Rule, 360's Drool !!
[Re: Roughbird72]
#2722343
12/07/19 04:30 PM
12/07/19 04:30 PM
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Joined: Feb 2005
Posts: 20,273 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,273
PA.
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[quote=Roughbird72]The biggest difference in stock form, 340 ... pre EPA, 360 ... post EPA
:What does that have to do with an engine you are going to modify. You got me scratching my head on that one.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.38@138.67
Livin and lovin life one day at a time
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