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92dakotahd
GenII
 
4/12/2002
11:15:16
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 Subject: 340 TB on 3.9L??
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Is it possible to get a throttlebody off of a 340 to work on a GenII 3.9L??
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IntenseDak39
*GenIII*
4/12/2002
11:16:17
|  RE: 340 TB on 3.9L??
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340?.... i thought those were only carbed
CLICK HERE!
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92dakotahd
GenII
4/12/2002
11:17:55
| RE: 340 TB on 3.9L??
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Not the one I know of.
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alex
Dodge Dakota
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4/12/2002
11:22:09
| RE: 340 TB on 3.9L??
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Well, we're gonna need more details than that. If you found a 340 that's fuel injected, then chances are that TB may not fit a Magnum engine set-up.
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fast dakota
Dodge Dakota
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5/07/2002
22:36:02
| RE: 340 TB on 3.9L??
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I own the 340 motor. It is a 71 340 with 92magnum heads, m1 intake ,and a four barrel TB. It is fuel injected. The origenal owner was Terry DeLong. I am the third owner of the truck. Oh yeh it also has a 150 shot of nitrous.
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Lesley
GenIII
5/07/2002
22:49:59
| RE: 340 TB on 3.9L??
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Is that a slant motor?
97 3.9 CC Sport. Black. Auto 3.55, Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 TB, FMS 19 lb fuel injectors, 17" Boyd Coddington Smoothies. Have, but not installed: JBA 9mm cables, Borla tip, IAT adjuster
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MMM3
Dodge Dakota
JOIN HERE
5/07/2002
23:01:47
| RE: 340 TB on 3.9L??
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THATS FUNNY .. SLANT =
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FazDak
GenII
5/07/2002
23:18:51
| RE: 340 TB on 3.9L??
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I think Lesley is refering to a "slant 6", no its not a slant 6.
340's were the best performing stock LA series (premag) small block Mopar made.
You can put mag heads on a pre mag V8, just need to use AMC lifters and holow pushrods to get the rockers oiled properly and of course with those a mag intake and TB.
No 340 ever came stock with any form of fuel injection as the last 340 put in a production vehicle was made in 1973, I have one.
Hope this help all, Scott
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Lesley
GenIII
5/07/2002
23:24:24
| RE: 340 TB on 3.9L??
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A friend's brother has an old dodge of that era, it is a slant six.
97 3.9 CC Sport. Black. Auto 3.55, Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 TB, FMS 19 lb fuel injectors, 17" Boyd Coddington Smoothies. Have, but not installed: JBA 9mm cables, Borla tip, IAT adjuster
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SuperBee
Dodge Dakota
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5/08/2002
01:15:54
| RE: 340 TB on 3.9L??
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yes, a slant 6 is a 273 CI motor, most often then not came with a 4bbl but i think you could get a 6 pack, (bear with me here this is beforew my time, i was only born in 1983.) and man did they kick a$$ int he smaller bodied cars like the dusters. my dad had one (340 6pack) and loved it, but he also had a slant 6 and said it just wasnt the same, he said he would upwards of 25 mpg with his slant though.
but the slant=not known for performance, it was the basic bare bones engine in many older cars, there are some followers out there that look for cudas with a slant, heck ive seen chargers with slants, damn cool car, just needed more 440/426
but if i ever had the money and needed a new engine id look into dropping an old 340 into my dak
what was the hp rating? wasnt it something like 320?
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CW
GenIII
5/08/2002
09:07:22
|  RE: 340 TB on 3.9L??
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Superbee: The slant six was a 225 cdi motor and smaller on the earlier ones. Came with a single bbl carb and on the super six had a 2bbl carb.
273,318,340,360 were all the LA V-8 small blocks.
HP on the old 340 was 275 for the 4bbl version and 300 on the six pack set up. Under rated of course.
2001 4.7 RC 5sp 3.92 LSD
Click on thumbnail for mods.
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FazDak
GenII
5/08/2002
11:23:30
| RE: 340 TB on 3.9L??
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Sounds like you and I are of similar age CW, or you are very informed on the older stuff?
I am getting close to board with my Dak so I may pull the 340 Challenger out and start working on it again.
Scott
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92dakotahd
GenII
5/08/2002
12:00:39
|  RE: 340 TB on 3.9L??
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Man! I thought this post was dead and bam I get 8 replies in one night. Sorry if I confused anyone. I should have posted that it wasn't necessary anyway.
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Art
Dodge Dakota
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5/08/2002
13:29:42
| RE: 340 TB on 3.9L??
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There is a version of the slant 6 with a 4 barrel holley,it was called the "hyper pack" and it was 225 cid and 195cid I beleive.Like stated above there never was a 340 with injection from factory and Fazdak there is more to using Mag heads on pre-mag blocks just that,remember the oil system in the LA engines got pressure from the cam bearings and then up thru the heads and pedastles and then to the rocker shafts
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RTjohn
Dodge Dakota
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5/08/2002
22:08:14
| RE: 340 TB on 3.9L??
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doesn't terry own proglass?
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Hersbird
Dodge Dakota
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5/08/2002
22:30:30
| RE: 340 TB on 3.9L??
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The fastest production car for a long time built in Australia was a Hemi 6-Pack Charger. It was much different then a US Charger, and was smaller. The hemi referred to a slant 6 motor with hemi type heads and the 6 pack was triple 2bbl webber carbs, one for each cylinder. It could run a low 14 sec 1/4 mile pure stock and held the fastest Australian production car title up until the aussies started stuffing LS1s and 6-speeds into their Commodores. I would also argue about the 340 being the best performing small block mopar, but I see you said pre-mag. I'd say the current 360 R/T motor puts out more net power then the regular 340, and is pretty close to a 6-bbl. The problem with the 6-bbl is not many were ever in a very good state of tune for them to be making maximum power. The average Joe just couldn't figure them out. They had magazine tests where they took a 440 6-pac with some miles on it back in 1970 and then brought in a professional 6-pack racer to do some adjustments. The owner thought it was running just fine but Mr. Six Pac knocked almost a full second off the 1/4 mile time with a good adjustment. So overall if you could drop the current R/T motor in a Duster 4-speed body you would probably beat out the stock 340 most of the time. Even putting the 360 R/T in a AAR or T/A in place of the 6-pac and I bet you'd be in the race there, especially if the 340 owner wasn't into screwing with the carbs all the time. What was the question again? Oh yeh, there was never a feul injected 340 from the factory so there is no such thing as a 340 TB.
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92dakotahd
GenII
5/08/2002
23:21:55
| RE: 340 TB on 3.9L??
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To RTJohn yes Terry DeLong does own Proglass, if you look at the pics for midsize dodge hoods the truck I speak of is there but in no where near the state it is currently in. But it was in MOPAR mag for anybody that keeps old mags around. And from what I've seen and I realize that the 340 in this dak is far from stock a 340 can hang with an R/T I've ridden this the 340 Dak and it hauls. I can't find the #s anywhere but it is around a 13-14 second truck. (Safe guess) and even faster with the nitrous on.
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SuperBee
Dodge Dakota
JOIN HERE
5/09/2002
01:48:12
| RE: 340 TB on 3.9L??
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heck, if i had a 340 challenger my dak would be the little black neglcted thing in the driveway
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92dakotahd
GenII
5/09/2002
08:33:06
| RE: 340 TB on 3.9L??
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I think that with equal amounts of work put into them that a 360 R/T could only hope to keep up with a 340 if they were to both be in the same vehicle even. I've heard that a stroker 340 (416-422) on 150 shot has the potential to be a 10 second truck.
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CW
GenIII
5/09/2002
09:29:22
| RE: 340 TB on 3.9L??
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Faz dak: I never lived in that era, just took a interest in it at one time. Mopar action was my favorite magazine.
2001 4.7 RC 5sp 3.92 LSD
Click on thumbnail for mods.
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FazDak
GenII
5/09/2002
11:07:31
| RE: 340 TB on 3.9L??
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I have been on and off restoring my Chally for the past 10+ years, I do something to it and get board so thats why the little Dak is my current interest.
I must say that my 340 (nicely built) does not have the broad powerband that my 3.9 has, Im not saying it wouldnt kill my Dak but the 340 powerband is very peaky but boy once it peaks!!
I will finally have the 8 3/4, 4.10, limited slip rear in the Dak in the next couple of weeks but after all Ive done to it already Im gettin board with it. I guess the 4.10 will get my interest up a little again but its still nice to be able to go as fast as my Dak is while hauling trash to the dump. ;-D
I am puttin up a picture of my Chally on my profile if anyones interested, that pict was quite a few years ago. no amber headlights or mags now, just 15"ralleys.
Scott
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Lesley
GenIII
5/09/2002
11:59:05
| RE: 340 TB on 3.9L??
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Message:
Beautiful! That was the greatest era for cars huh?
97 3.9 CC Sport. Black. Auto 3.55, Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 TB, FMS 19 lb fuel injectors, 17" Boyd Coddington Smoothies. Have, but not installed: JBA 9mm cables, Borla tip, IAT adjuster
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FazDak
GenII
5/09/2002
16:30:47
| RE: 340 TB on 3.9L??
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Message:
Yes and no, they definantly dont make em like that any more and old carbs and ecu iignition systems were WAY eaiser and cheaper to work on compared to this computer controlled stuff but they had no over drive and the power (as I stated before) was peaky not as steady as a port injected engine.
My car will never be sold though thats how much I still love em. E bodys have always been my fav's.
As a matter of fact thats my 4.10 member doner car, that heavy thing had to have good gears to get it moving.
Thx, Scott
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CW
GenIII
5/09/2002
21:48:09
| RE: 340 TB on 3.9L??
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Yeah I have a weak spot for the E-bodys as well. Had a '74 challenger just out of highschool. It was rusty but trusty.
2001 4.7 RC 5sp 3.92 LSD
Click on thumbnail for mods.
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Hersbird
Dodge Dakota
JOIN HERE
5/09/2002
23:39:35
| RE: 340 TB on 3.9L??
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A stroker 340 is really not a 340 anymore. It would have the same bore and stoke as a stroker 360 so one wouldn't have any advantage over the other at all. The 360 replaced the 340, and it did it right when they really started slowing cars down with emissions and low compression. Everybody thought that the 360 was just a pig compared to the 340 it replaced but it didn't have anywhere near the trick parts thrown at it as the 340 did. Finally in 74 they put some of the good stuff on a HP 360. In 73 the 340 was making 240hp @ 4800 rpm and 295ft-lbs @ 3600 rpm. the HP360 in 74 made 245hp @ 4800 rpm and 320ft-lbs @ 3600 rpm. The 71 and eariler HP numbers don't compare well because they are gross -vs- net numbers. So once the 360 got the 340 goodies it made more HP and torque then the 340. The current R/T 360 makes more power then both of them, quite a bit more. Talk about E bodies, there is a 70 Challenger R/T I see everyday rotting away, parked on the street, where I deliver mail. I have asked quite a few people who owns it and nobody knows. It does get moved a few spaces about once a week and it has current tabs but it is always there. I've even seen them tow it around the block so they can sweep the streets under it. It's still in pretty good shape but it breaks my heart to see it just neglicted there all the time! I have no idea if it is a 340, 383, 440, or 426 car (wouldn't that be cool) as sombody has pulled the callouts off the hood, but I'm quite sure the old R/T stripe is original and it has the correct hood and exhaust as well. I should be a crime to hardly ever drive it. Someday I'll figure out who owns it, hopefull it willbe some little old lady who'll sell it to me for a couple of grand!
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SuperBee
Dodge Dakota
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5/10/2002
02:59:04
| RE: 340 TB on 3.9L??
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would break my heart too,
but im more of a B-Body person
superBees, road runners, chargers, i think them are B bodies, pretty sure ofo it, if im wrong and sounds stupid, please slap me
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Lesley
GenIII
5/10/2002
08:19:39
| RE: 340 TB on 3.9L??
IP: Logged
Message:
Hersbird, why don't you leave a note on the windshield asking if it is for sale?
97 3.9 CC Sport. Black. Auto 3.55, Quick D Intake, JBA Stainless headers, Autolite 3923s, stainless Borla Turbo XL, V8 TB, FMS 19 lb fuel injectors, 17" Boyd Coddington Smoothies. Have, but not installed: JBA 9mm cables, Borla tip, IAT adjuster
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92dakotahd
GenII
5/10/2002
09:35:43
| RE: 340 TB on 3.9L??
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I know of quite a few cars that sit neglected around here, not just mopars. There is a Daytona Charger, the SuperWing, that the guy just leaves in his garage and pulls out for shows, just leaves the hood down. Never does any work. Last summer at a show as he pulled up it caught fire, they put it out and he just dusted it off and rolled it into place, wasn't even fazed I guess. Some people just don't have an appreciation for what they have or even how much it could be worth with a little work.
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FazDak
GenII
5/10/2002
11:33:45
| RE: 340 TB on 3.9L??
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Message:
A 340 at the same cubic inches will have a slight advantage over a 360 as the crank jurnols are smaller so that makes the crank lighter.
Also they wouldnt have the same bore as the 340 is 4.04 stock and the 360 is 4.00 stock.
The 360 never got 340's real good stuff though, X heads, they had a 2.02 intake valve. If the 360 ever got those back then it would have been real nasty.
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Hersbird
Dodge Dakota
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5/11/2002
00:23:33
| RE: 340 TB on 3.9L??
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Here is the list of my all time favorite Mopars, generally speaking, not exact drivetrain combination.
1-71 Plymouth Cuda, the most distinctive E body made with the quad headlights on a cuda, and the gills on the fender. Got to love billboards, and you could get all this in a convertable.
2-71 Plymouth Roadrunner, just an awesome shape and style, too bad no convertible in this style.
3-70 Challenger, specifically the T/A, handled and looked good, still pretty fair priced considering how rare they are.
Those are the standouts, I also used to really like the Superbirds but they are starting to look a little overdone as I get older. I'm gaining more of an apperciation for the really earily 300 chryslers, before they had fins. I even appreciate a good 78 Super Coupe as long as it's not rusting away as so many Aspens and Volaries did. Oh and there is this sweet 87 GNX for sale here... wait that's a Buick! oh man it's still sweet!
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SuperBee
Dodge Dakota
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5/11/2002
01:13:38
| RE: 340 TB on 3.9L??
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all time fav mopar,
68 and 69 Super Bee
could you have guessed? hehehe
after that prolly id take a 57 coronet with a hemi Head, i think they were 325 CI with 310 hp?
oh well, id take one anyway, i know this littly eold lady that had one, she said it went fast and handled great, she said she took it on a curve on a local road doing 90+, im scared to take the corner at 60 let alone 90, id take it, fins and all
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