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Re: 340 or 360?
[Re: OhioMopar]
#1547768
12/16/13 11:52 AM
12/16/13 11:52 AM
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Joined: May 2003
Posts: 13,200
aZLiViN
J_BODY
I Live Here
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I Live Here
Joined: May 2003
Posts: 13,200
aZLiViN
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My Mirada was pretty much gutted. single race seat, full cage, still had the dash, factory door panels, glass, pwr windows, aluminum head RB, 727, D-60 rear and tipped the scales at 3380 with me in it
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Re: 340 or 360?
[Re: J_BODY]
#1547770
12/16/13 02:44 PM
12/16/13 02:44 PM
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Joined: Aug 2003
Posts: 8,779
Mt.Gilead, Ohio
OhioMopar
OP
master
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OP
master
Joined: Aug 2003
Posts: 8,779
Mt.Gilead, Ohio
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Quote:
My Mirada was pretty much gutted. single race seat, full cage, still had the dash, factory door panels, glass, pwr windows, aluminum head RB, 727, D-60 rear and tipped the scales at 3380 with me in it
I'm guessing mine is a bit more portly than that! Lol.
1969 Dart GTS 340
1969 Super Bee X9 N-96
1969 Coronet R/T X9 N-96
2015 Dodge Dart GT
2019 Ram 2500 Big Horn.
Looking for the original block for my Bee. The last 4 are 7449
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Re: 340 or 360?
[Re: OhioMopar]
#1547771
12/16/13 09:08 PM
12/16/13 09:08 PM
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Joined: Jan 2003
Posts: 8,940
Holly/MI
Dean_Kuzluzski
master
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master
Joined: Jan 2003
Posts: 8,940
Holly/MI
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Quote:
Quote:
My Mirada was pretty much gutted. single race seat, full cage, still had the dash, factory door panels, glass, pwr windows, aluminum head RB, 727, D-60 rear and tipped the scales at 3380 with me in it
I'm guessing mine is a bit more portly than that! Lol.
A "full cage" and Dana 60 add a lot of weight over a stock 7&1/4. Alum head RB vs ironhead smallblock is probably/nearly neglible. Power windows didn't get lighter until most OEM's got away from the scissor style mechanism and went "tape/gear drive" in the mid80's. If the driver is in the 180+ range you're looking at 3200 for the vehicle. I'll assume gutted means no a/c & heater components, no wiper system, no p/s, no p/b and ?????
R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04
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Re: 340 or 360?
[Re: OhioMopar]
#1547772
12/16/13 10:38 PM
12/16/13 10:38 PM
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Joined: Sep 2009
Posts: 928
NC
SLOW67
super stock
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super stock
Joined: Sep 2009
Posts: 928
NC
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Quote:
Quote:
If the engine you have is still solid throw in a boost frendly cam and turbo it!
Best power for the price. The shorter stroke will help you hook the tires and when the boost comes on it will not feel like a little 340 anymore.........................
Not sure a turbo is in the budget. I've nnever really looked into it.
It's cheaper than building a motor  To build a 400hp 360 it was going to cost me,machine work included, around 3k. Thats for decent parts and the only machine shop around here I trust isn't cheap. I probably have $1500 or less in my turbo system and that includes upgrading my fuel system at the same time.
Your going to need alot of motor or some kind of power adder to motivate a 4000lb car
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Re: 340 or 360?
[Re: SLOW67]
#1547773
12/17/13 06:42 AM
12/17/13 06:42 AM
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Joined: Jan 2003
Posts: 2,933
Finalnd, Perkele
jyrki
master
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master
Joined: Jan 2003
Posts: 2,933
Finalnd, Perkele
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I would retain the 340, then later stroke it. You don't see much difference betweeb the budget 340 and budget 360. I built a .030" over 340 stroker a couple of years ago, stroker kit was 1200 at Muscle motors, adjusted the quench, homeported the heads and installed a comp cams flat tappet XE 285 cam and that's about it with some attention top details. Factory intake, factory exhaust manifolds etc. 416 cu in with very civilized manners, 9.5:1 CR, made 410 hp through original exhaust and 440 with 1 5/8" primary headers and 2.5" duals. Should relatively easily run sub 13 sec et's even with a compromise gearing and converter and look stock.
Plynouth VIP '67 TT IC EFI
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Re: 340 or 360?
[Re: OhioMopar]
#1547775
12/17/13 11:24 AM
12/17/13 11:24 AM
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Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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I've had 340 and 360 short blocks in the same car, with the same heads, cam, intake, carb etc. and this was the difference. The 340 ran 10.44 and the 360 ran 10.46. The difference was the 340 was being twisted to 8,000 while the 360 was only twisted to 7200. The 360 left harder but didn't have the top end charge of the 340. I used a 4600 converter and 5.13 gears with the 340 and a 4200 converter and 4.86 gears with the 360. The 360 was certainly not as hard on the valvetrain as the 340 but being a bracket car running at the bottom of its class I really liked the top end charge of the 340. But the bottom line is if you are going to stroke it anyway it's not going to matter.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: 340 or 360?
[Re: Guitar Jones]
#1547776
12/17/13 11:30 AM
12/17/13 11:30 AM
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Joined: Aug 2003
Posts: 8,779
Mt.Gilead, Ohio
OhioMopar
OP
master
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OP
master
Joined: Aug 2003
Posts: 8,779
Mt.Gilead, Ohio
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Thanks! I really enjoy the experience and knowledge here.
1969 Dart GTS 340
1969 Super Bee X9 N-96
1969 Coronet R/T X9 N-96
2015 Dodge Dart GT
2019 Ram 2500 Big Horn.
Looking for the original block for my Bee. The last 4 are 7449
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Re: 340 or 360?
[Re: OhioMopar]
#1547777
12/18/13 12:16 AM
12/18/13 12:16 AM
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Joined: Aug 2003
Posts: 4,987
new jersey usa
11secdart
master
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master
Joined: Aug 2003
Posts: 4,987
new jersey usa
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I felt the opposite after running 340s for years , I went to a 360 ( crate short block) and felt like the 360 pulled better in high gear , using the same W2 heads I currently use., the 340 was 12.5 to 1 comp. with a 627 lift roller cam, my current 360 is 11 .5 to 1 comp with a 590 lift mechanical cam and it made more H.P. and torque. in the same car, same convertor and gears the 360 has gone about 3-4 tenths quicker.
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 or 360?
[Re: OhioMopar]
#1547778
12/18/13 01:06 AM
12/18/13 01:06 AM
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Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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Quote:
Later 340's don't see to go for much and stick around for sale for quite a while. 
If the 340 runs it's a 1200-1500 engine. My friend just sold a 73 cast crank 340 with air gap and a 484 cam in it for 1600.
That one 360 with the aluminum intake/carb, looks like an LD4b, for 150ish is a steal.
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