Moparts

383 ID please

Posted By: Jeff_T

383 ID please - 05/27/09 06:53 PM

Just trying to figure out the origin of the 383 thats going into my Duster.

LL24681307 on both sides
5/17/67
On underside of drivers side block facing ground=
PT383P235174 and a faint 9 (maybe?)
Not sure is thats associated with a vin or maybe a DCPD replacement block. Cant find any other markings.

I was told it came from a big block A body.
Posted By: Chi_Town_Runner

Re: 383 ID please - 05/27/09 08:31 PM

PT = Trenton Plant
383 = 383cubic inches
P = Premium fuel
2351 = assembled Thurs, 4 Jan 1968
74? = number assembled on that date

Pretty sure but not absolute about the "P".

Being a '68 the VIN should be stamped on top of the rear of engine where bellhousing/auto trans attaches near oil sending unit. But that could be hit or miss.

There should be some stamping on the block mating surface just in fron of where the passenger side head attaches.

Frank
Posted By: Jeff_T

Re: 383 ID please - 05/28/09 03:21 AM

Interesting. I guess it was cast 5/17/67 but assembled in 68? Forgot to mention that above the 3 of "383" there is an upside down "A"

Stamping in front of the block says D383

and "1 4 2"

Not seeing anything where the oil sending is....not even a surface for a stamp
Posted By: JohnRR

Re: 383 ID please - 05/28/09 03:26 AM

Quote:

Interesting. I guess it was cast 5/17/67 but assembled in 68? Forgot to mention that above the 3 of "383" there is an upside down "A"

Stamping in front of the block says D383

and "1 4 2"

Not seeing anything where the oil sending is....not even a surface for a stamp



It's a 68 "D" model year 383 assembled on 1/4/1968 the 2 means 2nd shift , is there an HP or an R under the 1 4 2 ???

The 5/17/67 is the date the block was CAST most times they get machined and built within a few weeks , sometimes not .

The number on the rear bell flange would just be stamped right into the casting, no machined pad , sometimes it's hard to see.

Is it missing a a motor mount ear on the drivers side ? .
Posted By: Jeff_T

Re: 383 ID please - 05/28/09 03:51 AM

Quote:

Quote:

Interesting. I guess it was cast 5/17/67 but assembled in 68? Forgot to mention that above the 3 of "383" there is an upside down "A"

Stamping in front of the block says D383

and "1 4 2"

Not seeing anything where the oil sending is....not even a surface for a stamp



It's a 68 "D" model year 383 assembled on 1/4/1968 the 2 means 2nd shift , is there an HP or an R under the 1 4 2 ???

The 5/17/67 is the date the block was CAST most times they get machined and built within a few weeks , sometimes not .

The number on the rear bell flange would just be stamped right into the casting, no machined pad , sometimes it's hard to see.

Is it missing a a motor mount ear on the drivers side ? .



Doesn't appear to be missing anything block wise, while Im looking with a flashlight in the dark. I stripped the paint completely off the front and do not see an HP and the back has nothing that I can see even with the paint gone. Does a DCPD on the front drivers side mean warranty or replacement motor?
Posted By: JohnRR

Re: 383 ID please - 05/28/09 04:18 AM

Quote:

Quote:

Quote:

Interesting. I guess it was cast 5/17/67 but assembled in 68? Forgot to mention that above the 3 of "383" there is an upside down "A"

Stamping in front of the block says D383

and "1 4 2"

Not seeing anything where the oil sending is....not even a surface for a stamp



It's a 68 "D" model year 383 assembled on 1/4/1968 the 2 means 2nd shift , is there an HP or an R under the 1 4 2 ???

The 5/17/67 is the date the block was CAST most times they get machined and built within a few weeks , sometimes not .

The number on the rear bell flange would just be stamped right into the casting, no machined pad , sometimes it's hard to see.

Is it missing a a motor mount ear on the drivers side ? .



Doesn't appear to be missing anything block wise, while Im looking with a flashlight in the dark. I stripped the paint completely off the front and do not see an HP and the back has nothing that I can see even with the paint gone. Does a DCPD on the front drivers side mean warranty or replacement motor?



No the DCPD is the old casting mark Dodge Chrysler Plymouth Desoto.

I have a 68 383 , it was an 2 bbl motor and I'm pretty sure it had a it had an R on the Pad , 69 2 bbl motor same thing , but with the P underneath that would say it should be an HP ??? Is it assembled or just a block ?

Anyway look at the mount ears on the drivers side again , 2 in the front and one behind that front pair up near the deck surface .
Posted By: Jeff_T

Re: 383 ID please - 05/28/09 05:03 AM



This is what I have. I dont understand what your asking about the driver mount so here it is. Lots of random "A" stamps all over the block including on the front mount ear.
Posted By: JohnRR

Re: 383 ID please - 05/28/09 01:58 PM

Thanks for the pictures, that motor started life as a 383 2 bbl, there is no HP it would be in the lower right corner, but the confusion for me is no R for regular fuel , that may have been a 69 thing? I can't remember and the pad on my 68 2bbl block is machined flat from decking, BUT the motor mount ears tell the tale, whoever told you it was out of a big block A body was incorrect.
Posted By: Chi_Town_Runner

Re: 383 ID please - 05/28/09 02:07 PM

Hey John,

Could it be a 383 4bbl, just not HP, and that's the reason for the "P" and not the "R"?

Frank
Posted By: JohnRR

Re: 383 ID please - 05/28/09 02:16 PM

Quote:

Hey John,

Could it be a 383 4bbl, just not HP, and that's the reason for the "P" and not the "R"?

Frank



Yes Frank that is possible , if the motor is original and std bore it would have a flat top piston and not one with a dish . I can't remember if the 383 in my 68 Sport Sat. had the HP on it or not , I'm thinking not , I have a picture of the VIN on the back of the block But don't have the ID pad. The reason I leaned toward it being a 2bbl motor was because of no VIN stamp , but I think that was an early late thing in 68 and hit or miss , my 4bbl motor had it , sept or oct 67 SPD on the car , and the 2 bbl did not and it was a marchish build , pretty sure they were both st. louis cars ... my memory is foggy on it , I probably have the fendertag from the 2bbl car somewhere I do have the block from it , it was slated for my stroker build til;l i found out the shop that honed it screwed it up and I have to bore to next size and a new custom piston ...

sorry for straying off topic ...

I'm not sure if a 383 A body would have had the HP stamped motor , but that motor didn't come out of a 383 A body that I am 100% sure of .

Where's Rhinodart to tell me I'm WRONG ...
Posted By: Jeff_T

Re: 383 ID please - 05/28/09 04:12 PM

Quote:

Thanks for the pictures, that motor started life as a 383 2 bbl, there is no HP it would be in the lower right corner, but the confusion for me is no R for regular fuel , that may have been a 69 thing? I can't remember and the pad on my 68 2bbl block is machined flat from decking, BUT the motor mount ears tell the tale, whoever told you it was out of a big block A body was incorrect.



What about the motor mount ears are the tell tale? This builder i got the 383 from certainly knows his stuff but maybe it coulda been a motor swap into an original 383 a body.
Posted By: John_Kunkel

Re: 383 ID please - 05/28/09 10:05 PM


The A body 383 block has a threaded boss on the front of the block on the drivers side similar to the one on the RB block below. The boss is for a bolt that holds part of the mount bracket that wraps around to the front of the block instead of depending only on the ears on the side of the block.

Attached picture 5258534-RBblockboss.jpg
Posted By: DartGTS

Re: 383 ID please - 05/29/09 11:47 AM

Hello:
Photo of tapped holes in front of 67 383 A Body.
Maynard.

Posted By: Jeff_T

Re: 383 ID please - 05/30/09 03:26 AM

Yup I have the threaded holes:

Posted By: DartGTS

Re: 383 ID please - 05/30/09 07:14 AM

Hello:
Just for your information here is my block csting numbers. There have been reports of 383's with the front boss taped that were not "A" Body engines. Another urban legend? I don't know.

Maynard

Posted By: 6bblgt

Re: 383 ID please - 05/30/09 07:25 AM

The original VIN# stamped (non-HP stamped) engine in my March '68 built 383 4bbl Charger had the drilled & tapped bosses on the driver's front of the block.


last 8 digits of the VIN# should be stamped here (not my Charger engine)
Posted By: GTSDave

Re: 383 ID please - 05/30/09 11:48 AM

The motor mount bosses on the front of the block can be found as tapped and threaded on all sorts of engines. The one in my picture is a 69 B-Body 383, but I also have a 67, and a 69 from a Super Bee, and a 400 that all have the drilled and tapped holes.

The other motor mount difference they are referring to is probably the rear mount on the drivers side (see arrow in pic.) I believe it was cut off of some engines to make more room. I don't remember if it was a 440 or 383 thing. I do know that on my car, even with the power steering, there is no fitment issues with the regular mount still in place.

-Dave

Attached picture 5261886-383GTSMotorMount.JPG
Posted By: JohnRR

Re: 383 ID please - 05/31/09 04:13 PM

Quote:

Hello:
Just for your information here is my block csting numbers. There have been reports of 383's with the front boss taped that were not "A" Body engines. Another urban legend? I don't know.

Maynard





No not an urban legend, C bodies up to 68 used the same mount as the A body, C bodies used the mount before it was also used on A bodies. I have a 68 383 2bbl motor that I pulled from a 68 coronet that has the holes drilled and tapped , I 2 have 69 HP 383's that were not in A bodies that are not machined, so the C body mount must have changed in 69 ?
Posted By: RemCharger

Re: 383 ID please - 05/31/09 06:19 PM

Do you know whats inside? I see you have head studs....
Posted By: DartGTS

Re: 383 ID please - 06/01/09 03:22 AM

Hello:
Another myth laid to rest...tapped front boss holes do not make a 383 "A body" engine,only.
Was not sure on the 383's, but I have a RB 440 on test stand now with the tapped front boss. So if they are tapped ..they are tapped..if not..they are not. Don't make big deal of it.
Maynard
Posted By: 440newport

Re: 383 ID please - 06/01/09 04:53 AM

Quote:


No not an urban legend, C bodies up to 68 used the same mount as the A body, C bodies used the mount before it was also used on A bodies. I have a 68 383 2bbl motor that I pulled from a 68 coronet that has the holes drilled and tapped , I 2 have 69 HP 383's that were not in A bodies that are not machined, so the C body mount must have changed in 69 ?



Actually I believe it was only '65 C bodies that have this type of driver side mount, the first year of the newer body style. '66-on have the same brackets a B or E body would have. Why they would keep tapping these bosses after the run of BB A bodies I have no idea...maybe some truck app. parts might have used these holes?
Posted By: 1_WILD_RT

Re: 383 ID please - 06/01/09 06:28 AM

FWIW the 383 in my Challenger is drilled & tapped also, so it carried over to the 70 model year...
Posted By: JohnRR

Re: 383 ID please - 06/01/09 03:30 PM

Quote:

FWIW the 383 in my Challenger is drilled & tapped also, so it carried over to the 70 model year...



What's the casting date on the block ? except for the one in my 69 dart all the 69 model year 383's i have , one 2 bbl motor that I sold to mark gates and the rest are 4bbl HP's that are not machined and tapped ??? One of the non machined blocks is now machined though , I did it so I could use it in the dart .
Posted By: Jeff_T

Re: 383 ID please - 06/01/09 07:09 PM

Quote:

Do you know whats inside? I see you have head studs....



The only thing that original is the block. Its built be just streetable on pump gas. In a light Duster I should be happy!

The builder I bought it from is nearly a mopar expert and had no reason to sell the a-body issue to me. With all the crap that went on in the factories (Hemi four doors) to me its hard to say any motor can't be ruled out for any car based on common knowledge. Something out there on a true survivor car will always trump the experts status quo. It doesn't matter to me I just couldnt figure it out.
The builder also has a 6 pack motor he got out of a pickup truck. Transplanted with a 4bbl of course...
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