Go Back   DodgeForum.com > A Blast From the Past > Dodge Muscle Cars > Challenger & Barracuda
Sign in using an external account
Register Forgot Password?


Challenger & Barracuda Talk vintage Challenger and 'Cuda (e-body) specific topics within.

How to identify a 383 magnum engine

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 12-05-2006, 04:04 PM
Challenger_7 Challenger_7 is offline
 
Join Date: May 2006
Location:
Posts: 13
Default How to identify a 383 magnum engine

Hi Guys.

Please welcome my latest addition to my family of Challengers. This red/black 71 automatic has a 400 souped up engine and performs really well. I recently bought it and will do some fine touches to it here and there. With this, I now have an almost complete collection of the muscle 71 series (missing a Hemi)
The others are a 383 magnum convertible manual gear, and the third is a 383 magnum R/T absolutely untouched, all original and in excellent condition. See photos attached.

My question is the following. On my convertible, its original engine was replaced by a 400. When I bought it, I sought its original owner whom has died unfortunately, and his children claim that they have the orig engine, amongst many others in their store. They have no idea about engines, and the engines are stripped down, and probably peices all over the place.

I will be visiting them with a mechanic, who supposedly knows how to identify them. But I want to be sure. Can you throw at me suddestions to help

Thanks
Ok, I seem to be having a problem posting photos, will try later

[IMG]local://upfiles/34827/C0F14E1FCBD14DEEBA8A5D111A4090B7.jpg[/IMG]
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!
__________________
71 Challenger Convertible, 383 Magnum, A/C, 4 speed Manual trans, PS, PB, 47,000 orig KM, 451 stroker kit
Reply With Quote
  #2  
Old 12-05-2006, 04:11 PM
Challenger_7 Challenger_7 is offline
 
Join Date: May 2006
Location:
Posts: 13
Default RE: How to identify a 383 magnum engine

Looks like posting the pictures worked after all. Here are the rest


[IMG]local://upfiles/34827/5CD95F9E4A624EE183C7ECD5ECF1109A.jpg[/IMG]

[IMG]local://upfiles/34827/C8B1814D08AC404EAFE3EFC41ABD56B3.jpg[/IMG]

[IMG]local://upfiles/34827/01F1F1FEEA374C74A5D768797568F00D.jpg[/IMG]
__________________
71 Challenger Convertible, 383 Magnum, A/C, 4 speed Manual trans, PS, PB, 47,000 orig KM, 451 stroker kit
Reply With Quote
  #3  
Old 12-06-2006, 01:49 AM
71RoadRunner's Avatar
71RoadRunner 71RoadRunner is offline
Legend
 
Join Date: Jul 2003
Location: United States
Posts: 9,543
Send a message via AIM to 71RoadRunner
Default RE: How to identify a 383 magnum engine

The 383 and the 400 have their ID in the same location, if your looking at the engine from the passenger side, look just below the distributor at the flat angled pad, it will have coding stamped into it (this is sometimes unreadable due to heavy or multiple coats of paint filling in the stampings, you may need to chip the paint off to positively ID it if that is the case). Part of it will be a code for the year made, another will be the engine size in CID (383 or 400) and the last at the bottom right will tell you what type of engine it is (HP is the Magnum, some might have HP2 which means it is a Magnum that was built on the 2nd shift). Anything other than HP or HP2 are not the Magnum. The larger 440 and 426 have a flat pad in front of the valley pan under the intake manifold, it is seen from the front of the motor off to the left side and the coding is the same. Here are a few pictures showing where the ID pads are and they are highlighted by a red box around them.

The first picture is showing where the ID pad is on the 383/400 below the distributor and between the head and alternator:


[IMG]local://upfiles/193/D0B44994C0984D43A1D2549B216CB864.jpg[/IMG]



This second picture shows the flat pad for the 440/426 ID which is easily visible:


[IMG]local://upfiles/193/072A6CB0DF2C42DEA4DD54EEBCE31BC7.jpg[/IMG]
__________________
71 Plymouth Roadrunner 440 Auto. Modified
04 Dodge SRT-4 2.4L DOHC Turbo Intercooled 5-spd. Modified
Reply With Quote
  #4  
Old 12-06-2006, 08:52 AM
Challenger_7 Challenger_7 is offline
 
Join Date: May 2006
Location:
Posts: 13
Default RE: How to identify a 383 magnum engine

Thanks buddy, This sure helps.

Quite a beauty yours too, and the power must be awsome[8D]

By the way, is it true that the engines labelled "magnum" not only are hi powered and give more power than the 400, but have a special metal crank shaft or other parts too? I even heard that the crank shaft is made out of Stainless steel??
__________________
71 Challenger Convertible, 383 Magnum, A/C, 4 speed Manual trans, PS, PB, 47,000 orig KM, 451 stroker kit
Reply With Quote
  #5  
Old 12-06-2006, 12:07 PM
TeeWJay426 TeeWJay426 is offline
Record Breaker
 
Join Date: Sep 2004
Location: southern NH
Posts: 1,270
Send a message via Yahoo to TeeWJay426
Default RE: How to identify a 383 magnum engine

Welcome back Farouk.... thought that white convertible looked familiar! Found another sharp one too, I see.
__________________
'66 Hemi Charger
'67 Coronet R/T ragtop
'03 Hemi Ram 2500 QC 4x4
'99 Durango
'98 Intrepid ES
'93 Caravan (R.I.P.)
Reply With Quote
  #6  
Old 12-07-2006, 08:58 AM
Challenger_7 Challenger_7 is offline
 
Join Date: May 2006
Location:
Posts: 13
Default RE: How to identify a 383 magnum engine

Hi Tom, and thanks for the welcome note.
Yes I am still surviving inspite of everything[&:]
With all whats going on, the only real thing is the soud of my Challys.
Actually, this last one only was made available because the owner got fed up and wanted to leave the country. As we say, the misfortunes of some are the fortunes of others.

Coming back to identification, would there be a similar way to identify the cylinder head, or that would not be so important? Does all the significance lie onto the block?
Also what about the crank material, is it different on magnums form other engines?

Thanks, Farouk
__________________
71 Challenger Convertible, 383 Magnum, A/C, 4 speed Manual trans, PS, PB, 47,000 orig KM, 451 stroker kit
Reply With Quote
  #7  
Old 12-07-2006, 11:54 AM
TeeWJay426 TeeWJay426 is offline
Record Breaker
 
Join Date: Sep 2004
Location: southern NH
Posts: 1,270
Send a message via Yahoo to TeeWJay426
Default RE: How to identify a 383 magnum engine

The heads for the HP engines from '68 to '70 used casting numbers of 2843906. It should be on the top of the head itself; if the engine is fully assembled, you'd have to remove the rocker cover to see it. '71 & 2 used a casting number of 3462346. To my knowledge, the HP engines all used forged cranks; the low performance versions were cast. They employ different crankshaft dampeners, as the cast crank engines were externally balanced.
__________________
'66 Hemi Charger
'67 Coronet R/T ragtop
'03 Hemi Ram 2500 QC 4x4
'99 Durango
'98 Intrepid ES
'93 Caravan (R.I.P.)
Reply With Quote
  #8  
Old 12-08-2006, 05:03 AM
Challenger_7 Challenger_7 is offline
 
Join Date: May 2006
Location:
Posts: 13
Default RE: How to identify a 383 magnum engine

Thanks Tom. Its great to know this. Now I feel well prepared
__________________
71 Challenger Convertible, 383 Magnum, A/C, 4 speed Manual trans, PS, PB, 47,000 orig KM, 451 stroker kit
Reply With Quote
  #9  
Old 12-08-2006, 03:56 PM
d72hemi d72hemi is offline
 
Join Date: Oct 2006
Posts: 6
Default RE: How to identify a 383 magnum engine

If it is not the 383 From your car (matching VIN #), and you truely want a 383, just put any 383 in it. They are cheep, I can get a core from $75-$250 any day of the week. I known runing I can get running engines from $100-$300, but I stick with 440's. I bought my last running 440 for $300. I test drove the car, then pulled the engine myself for $300. To find out about Mopar engine casting numbers the first two sites are a must read! If they do not have the block with your VIN, I would stay with the 400 you have in it now. They look the same anyway, and can only be identified as a 400, instead of a 383, if someone reads the ID or VIN pad. If you keep the 400 (if ou get the #'s 383, I would store it, and not beat it up) and want more power you could always stroke the 400 to 451 (kits sold on the second site). you will have the torque and HP of a BB, but rev like a SB. I would also go to the third site, and search (search box upper left) for information on the 451, then once you gave some information on the setup, ask some questions that you may have left.

http://www.yearone.com/infocenter.as.../engine_id.asp

http://440source.com/blockinfo.htm

http://www.dodgecharger.com/forum/in...870&board=16.0

PS. Other 400 based stroker kits are available, like the 470, but most see them as "over kill". I grew up racing NHRA T/F, there is no such thing as "over kill"

Ian

__________________
always looking for a 71 charger and/or parts
Reply With Quote
  #10  
Old 12-12-2006, 08:31 AM
Challenger_7 Challenger_7 is offline
 
Join Date: May 2006
Location:
Posts: 13
Default RE: How to identify a 383 magnum engine

Hi Ian and thank you so much for your valued input.

I will check these sites and learn more before deciding.
I have always thought as you have suggested, that if I cannot find the original 383, then I will go a step higher. Now you are giving me choices to choose from, and I love that[sm=smiley20.gif]
Whatever decision I will make will certainly be to do something about the 400. The other day I was challenged by a BMW 325 and I barely managed to stay ahead of him
I mean imagine all the grace of my Chally supported by its musical roaring engine, and yet barely staying ahead of that........car!!

Ian, you mention get any 383, or 440. The prices you mentioned, do they apply for magnums?
Now I am not too technically clear with all the expressions, so please enlighten me again;
What is the meaning of BB & SB (double/single barrel?)
You say revs like a SB, what do you mean?

Finally, should I decide to go crazy and aim for a 470, how does that handle on daily slow driving. I want the best combination of power yet smooth driving.

I also ordered a pair of resonators from yearone labelled as "E body high performance models with dual exhaust". Will these still serve for the higher performance enginges?

Finally, you must be a wild one, with all the racing experience I have done a few myself, but only occasionally.

Looking forward to more answers.

Cheers
__________________
71 Challenger Convertible, 383 Magnum, A/C, 4 speed Manual trans, PS, PB, 47,000 orig KM, 451 stroker kit
Reply With Quote
  #11  
Old 12-12-2006, 11:09 PM
d72hemi d72hemi is offline
 
Join Date: Oct 2006
Posts: 6
Default RE: How to identify a 383 magnum engine

Challenger_7,

I am glad to hear that you enjoy choices, because that is what I am known for at work. Not to mention I like to know my options before moving forward on a decision. I hope you where at the track with the BMW 325, I have seen too many muscle cars destroyed while road racing than I care to mention. Let alone those who have lost their life while doing so, or killed someone else while doing so. I will not pretend that I never done anything like that, because I am guilty as hell, but I no longer act the ways I did in my younger (dumber) days. I just seen to many people die in my 23 years. That is it for my 2 cents.
Now let’s get back to that engine! I will not go into detail, because I will make this post into a small book, but I write it to give you the basic information you need, to do some research on your own (please read the links I gave you, most of your questions would have been answered there). You must remember that an internal combustion engine is only an air pump. Suck, squeeze, bang, blow. You can get good street manners for any cubic inch motor. It comes down to four major factors for street/strip manners; Compression ratio, Cam, torque converter (Auto transmission), and (finale) rear-end gear ratio. The biggest of the four is the cam that you select. All of your components must match. If you have engine set up for low RPM Tq/HP (intake, cam, rockers, headers…) and a high stall torque converter with 4.10:1 gears or greater, you will be outside of your Tq/HP RPM range before it does you any good. You will have lead sled that could not get out of it own way! Basically you will be like one of those ricers that just make more noise when the gas pedal is pressed, but don’t go any faster.
Cam: The cam is the heart of your power train’s manners. There are street, strip (race only), and street/strip cams. Street/Strip cams have a grind that is in between a true street and true strip cam. It is a compromise of the LSA (lobe separation angle), lift, and duration; the three dimensions of any cam.
Compression Ratio (CR): The volume of the cylinder at the bottom of the intake stroke compared to the volume of the cylinder at the top of the compression stroke. This can be changed by the; piston, deck height, cylinder head gasket thickness, and cylinder head volume. The max that your engine can handle with out detonation depends on the timing, cylinder head design (open VS closed head), cylinder head material (aluminum VS iron), and the cam. The cam does not play part of the calculation of CR, but it does determine the amount of fuel/air mixture gets into the cylinder. You could have a CR of 14:1 with iron heads (will detonate w/pump gas), but if your cam only let fuel/air in during ½ of the intake stroke (extreme exaggeration). You will not put enough fuel/air into the cylinder to allow detonation to occur at that extreme CR.
Torque converter and rear end gear ratio are big factors in both your cruising RPM, and performance. If you want a car to take to the drag track, from time to time you will want an engine with upper RPM Tq and HP, combined with a high stall torque converter and some tall gears. The down side is that that your cruising (highway) RPMs will be high. You can always get an over drive tranny, or Gear Vendors overdrive unit to counter act this to give you the best of both worlds.
Over all, you can have a good street/strip 470 engine that will blow the doors off most cars out there. The SB/BB means small block, or big block. Chrysler had two types of “BB” the BB, and the RB. I will let you read the link to get those definitions.

“Give a man an answer on the internet, and he will only know how to ask questions. Teach a man how to find answers on the internet, and he will always be on the internet (finding out cool stuff)” LOL.

I know as much as a do by researching my questions. I started out asking my dad (T/F drag racing since 1972) questions. Then I did further research to expand that knowledge. If you really want to know what to build you need to know what you want to be able to do with your ride, and then see what others have done to get there. I am not trying to be rude, there is just too much to put here, I type slow, and I am at work. I hope this is enough to get you started. Once you read everything and then formulate questions using that knowledge, feel free to ask some more. About 3,000 more Mopar motor heads and I (also D72hemi) are on the www.Dodgecharger.com site. Not that this site is bad, it is just geared more towards new Mopar, and the other is geared towards pre 1974 Mopar muscle.

I almost forgot, the only difference between Magnum (HP blocks) and regular motors is the cam. You will not use a HP cam with a stroker motor anyway.

Now say all that 5 times real fast. LOL.

Ian
__________________
always looking for a 71 charger and/or parts
Reply With Quote
  #12  
Old 12-13-2006, 11:05 AM
Challenger_7 Challenger_7 is offline
 
Join Date: May 2006
Location:
Posts: 13
Default RE: How to identify a 383 magnum engine

Ian, I am impressed and greatful for the time you have put in to guide me.
Ok, so its back to school!!!
I have read and will do so again, all what you have written, and research the sites, which I have already started to do, and copied all there is in them to digest them at my own pace, and then come up with more questions.
One thing though, the 440source does not have an e-mail to communicate with. I live in Lebanon (Middle East) and would rather communicate with them by e-mail. Any idea if they have one?
Also amongst the kits they have, I did not see one that makes the 400 block into more than 440, whereas it takes the 383 beyond that. Am I missing something here?

As for taking on the BMW, yes it was on the road as I get challenged often, but only choose to respond to cars that I feel I can beat and on grounds that are safe. I have done enough crazy driving in my youth to be careful about it now, but really appreciate your advice there

Thanks a bunch again, buddy, and will talk again soon, either here or on the Dodgecharger.com

Regards
__________________
71 Challenger Convertible, 383 Magnum, A/C, 4 speed Manual trans, PS, PB, 47,000 orig KM, 451 stroker kit
Reply With Quote
  #13  
Old 12-13-2006, 06:10 PM
d72hemi d72hemi is offline
 
Join Date: Oct 2006
Posts: 6
Default RE: How to identify a 383 magnum engine

Challenger_7

It is a small world! I am in Qatar right now. Come summer time I will be in Iraq. To answer your questions go to, http://www.440source.com/strokerkits.htm the 400 stroker kits are a little more than ½ down the page. There is also a funny “warning” section at the bottom of the page. I just called 440 source, they took their e-mail address off of the web page because they were getting a few hundred e-mails a month asking for information already contained on the website, and almost nothing related to sales. I did get the e-mail address for a nice lady in their sales department, I will PM you her e-mail address. I also for got to cover your question about resonators in my last reply. Resonators are similar to mufflers. They are used to change the tone of the exhaust, rather than quite it a bit like traditional mufflers. If I remember right (I left my Year One catalog with the pictures, in the US), e-bodies with Hemis, 440 six packs, and high performance 440 4V (four barrel, “V” actually stands for venture), and maybe other engines, had a resonator after the high flow muffler. This gave those cars even more of a “rumble” and “growl” to the exhaust sound.
What is the history of your car? Was it originally exported, or did it make its way over seas latter in life? Are there a lot of old US muscle cars in Lebanon? I have only seen one Challenger in Iraq, it was a yellow 73 sunroof car. Unfortunately it had little bit if fire damage, along with some bullet holes. I am always glad to hear that a common interest in cars can often bring people together, even if they are across the world from each other, or have some other type of “boundary” between them. Take care, and have fun with your Challenger!

Ian
[sm=gears.gif]
__________________
always looking for a 71 charger and/or parts
Reply With Quote
  #14  
Old 12-14-2006, 07:43 AM
Challenger_7 Challenger_7 is offline
 
Join Date: May 2006
Location:
Posts: 13
Default RE: How to identify a 383 magnum engine

Hi Ian, and thanks again for your assistance.
With what you are saying, surely you may land in Lebanon at sometime!! If you can make it, it will be my pleasure to take you round. Let me know any time.

My car's history is not clear to me as the person I bought it from had died and I got it from his children who know little about its history, as their father had bought it from someone else. But it is definately an export with kilometer speedo.

Lebanon used to be very much American car oriented till late seventies when japs and european cars were taking over. So quite a few muscle cars were seen around, but getting rare by the day. I am trying my best to grab the good ones that I can get. Some that are a real exception, I will keep, but others I will restore and sell.
I only started collecting muscle a year ago, but prior to that I was more on European cars.

On the muscle side, I now have the following:
383 conv 71 Chally manual gear, 383 Chally 71 R/T Original, 400 modified engine 71 Chally, 70 Chally with SB engine, 72 Charger with SE 360 engine, Plymouth 72 Sattelite 360 engine, 72 Trans Am 455 HO, 74 Trans Am 400 (4X engine), 79 Trans Am 400, 72 Camaro 350 SS (modified engine), 74 Corvette Stingray T top 350 eng, 66 Mustang coupe 6 cyl, and 56 Desoto fireflite.

Some of these cars need cosmetics or partial restoration, but all of them are road worthy.

I really appreciate your going through the trouble of getting me the e-mail for 440source. I really wondered how come they do not have an e-mail.
I will keep you posted with my progress on the convertible car as this one is really my favourite. I have already placed an order with yearone for just over a hundred items in order to fully restore it, and I intend changing its color to a more "funky" one, but for sure white interior. That is why, I also want to put a "nice" engine inside

I already enjoy driving it as it is, and look forward to enjoying it more when fully restored.

Please keep in touch. Best regards

Farouk
__________________
71 Challenger Convertible, 383 Magnum, A/C, 4 speed Manual trans, PS, PB, 47,000 orig KM, 451 stroker kit
Reply With Quote
Old 12-14-2006, 07:43 AM
 
 
 
Reply




Tags
2843906, 383, 451, casting, engine, engines, head, hemi, identification, identify, magnum, pictures, plymouth, stroker, year

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 03:05 PM.

Internet Brands, Inc.


Contact Details & Emails