Page 1 of 2 1 2 >
Topic Options
#2383287 - 10/07/17 01:13 AM Hemi block ID help
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 23314
Loc: Oregon
I can see that it is a '68 casting and was used in a '70 model year but I'm not sure what some of the other stampings mean. I think the '69 date is an assembly date but I'm not sure about the MN or is it an upside W? The WT is water test. Is the MN for Marysville Plant?

In the VIN the 0 is for '70 and the B is Hamtramck? So this block could be from a '70 Hemi Cuda or Challenger?


Attachments
DSC_1458 (Large).JPG

DSC_1459 (Large).JPG

DSC_1461 (Large).JPG

DSC_1462 (Large).JPG



Top
#2383288 - 10/07/17 01:15 AM Re: Hemi block ID help [Re: AndyF]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 23314
Loc: Oregon
Here is a closer view of the VIN


Attachments
DSC_1463 (Large).JPG



Top
#2383290 - 10/07/17 01:38 AM Re: Hemi block ID help [Re: AndyF]
John_Kunkel Offline
I Live Here

Registered: 01/20/03
Posts: 18873
Loc: Rio Linda, CA

MN42630035319

MN= Plant identifier for the Marysville engine plant
426= Displacement
3003= Build date October 17, 1969
5319= Sequence number
_________________________
I'm supposed to respect my elders, but its getting harder and harder for me to find one now.

Top
#2383294 - 10/07/17 01:57 AM Re: Hemi block ID help [Re: John_Kunkel]
6bblgt Offline
I Live Here

Registered: 01/20/03
Posts: 14918
Loc: Las Vegas, NV
Originally Posted By John_Kunkel

MN42630035319

MN= Plant identifier for the Marysville engine plant
426= Displacement
3003= Build date October 17, 1969
53193= Sequence number


there's a fifth digit to the sequence number for 1970 model year & the partial VIN indicates it is/was a hemi'cuda drive



Edited by 6bblgt (10/07/17 01:00 PM)
_________________________
- Dan

Top
#2383295 - 10/07/17 02:06 AM Re: Hemi block ID help [Re: AndyF]
srt Offline


Registered: 01/19/03
Posts: 8453
Loc: USSA ¢
the B on the top pad and rail corresponds to 0.010 under size main and rod bearings
fwiw it's rather cool to see a block like this with original machining marks and stamps.

Top
#2383296 - 10/07/17 02:10 AM Re: Hemi block ID help [Re: srt]
6bblgt Offline
I Live Here

Registered: 01/20/03
Posts: 14918
Loc: Las Vegas, NV
Originally Posted By srt
the B corresponds to 0.010 under size main and rod bearings


the crank would be undersize & the bearings oversize beer
_________________________
- Dan

Top
#2383297 - 10/07/17 02:17 AM Re: Hemi block ID help [Re: 6bblgt]
srt Offline


Registered: 01/19/03
Posts: 8453
Loc: USSA ¢
now I'm confused...
oversized rod bearings means *smaller* rod journals on the crank?
I got the mains (if it can be bored straight and leave material it's good). I always figured it meant the crank rod journals were finished to a greater diameter for future cutting too

Top
#2383299 - 10/07/17 02:30 AM Re: Hemi block ID help [Re: srt]
6bblgt Offline
I Live Here

Registered: 01/20/03
Posts: 14918
Loc: Las Vegas, NV
no, it is smaller diameter crank main & rod journals

it was done at the factory to use crankshafts that didn't machine with the desired surface finish at STANDARD OD size

on a block:
piston bores & lifter bores can be oversize on a factory block, because once the material is removed - larger is the cheapest way to go for a "fix"

block main/caps & rod/caps (because there are two halves) can be machined & returned to the STANDARD ID

_________________________
- Dan

Top
#2383362 - 10/07/17 10:28 AM Re: Hemi block ID help [Re: 6bblgt]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 23314
Loc: Oregon
Originally Posted By 6bblgt
Originally Posted By John_Kunkel

MN42630035319

MN= Plant identifier for the Marysville engine plant
426= Displacement
3003= Build date October 17, 1969
53193= Sequence number


there's a fifth digit to the sequence number for 1970 model year & it is/was a hemi'cuda drive



So the 3 after the sequence number means 'Cuda? I did not know that. I've never seen any info on decoding the sequence numbers.

Top
#2383372 - 10/07/17 10:46 AM Re: Hemi block ID help [Re: AndyF]
Alaskan_TA Online   content
Fluffy Balladeer

Registered: 01/20/03
Posts: 26003
Loc: Still moving in.
No, it does not.

It does match a 1970 Hemi Cuda though.

I do have an email contact for the car owner, I just sent him a link to this thread.

Top
#2383385 - 10/07/17 11:11 AM Re: Hemi block ID help [Re: Alaskan_TA]
Triggerfish Offline
top fuel

Registered: 07/25/05
Posts: 1845
Loc: Blairsden, CA
Originally Posted By Alaskan_TA
No, it does not.

It does match a 1970 Hemi Cuda though.

I do have an email contact for the car owner, I just sent him a link to this thread.


Way to go Barry! Bet you just made his day, just like your efforts have done many times in the past. I remember years ago, you hooked up the owner of an AAR with a kid who had his TA motor in his Dart that I sent you the VIN # of. Thanks for being an asset to the Mopar community.


Edited by Triggerfish (10/07/17 11:11 AM)

Top
#2383428 - 10/07/17 12:19 PM Re: Hemi block ID help [Re: AndyF]
Morty426 Online   content
master

Registered: 03/12/08
Posts: 6933
Loc: Sacramento CA
Originally Posted By AndyF
Originally Posted By 6bblgt
Originally Posted By John_Kunkel

MN42630035319

MN= Plant identifier for the Marysville engine plant
426= Displacement
3003= Build date October 17, 1969
53193= Sequence number


there's a fifth digit to the sequence number for 1970 model year & it is/was a hemi'cuda drive



So the 3 after the sequence number means 'Cuda? I did not know that. I've never seen any info on decoding the sequence numbers.


The sequence number has nothing to do with what car it went into.

The VIN on the block told them it went into a cuda. Serial numbers were issued in groups or blocks so if you know the group range you can surmise what type of car it went into.

Top
#2383453 - 10/07/17 01:50 PM Re: Hemi block ID help [Re: Alaskan_TA]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 23314
Loc: Oregon
Originally Posted By Alaskan_TA
No, it does not.

It does match a 1970 Hemi Cuda though.

I do have an email contact for the car owner, I just sent him a link to this thread.


That could be good or bad. If the guy already has a "numbers matching" block in his car then seeing this thread isn't going to make his day.....

I should say that this is not my block. I saw the block sitting in a shop the other day and it was so clean and the stamps so clear that I thought I'd shoot some pictures of it just to see what it was. The engine appears to be complete with original intake, carbs, crank, rods, etc. all sitting there. I do not know the back story on the engine but if the owner of the car wants to contact me I could tell them where I saw the engine and they could take it from there. The shop was planning to rebuild the engine so if the car owner wants to buy it before it gets rebuilt then they'll have to make a quick decision.


Edited by AndyF (10/07/17 01:58 PM)

Top
#2383457 - 10/07/17 02:00 PM Re: Hemi block ID help [Re: AndyF]
ScottSmith_Harms Offline
Mr Wizzard

Registered: 01/20/03
Posts: 41300
Loc: Spokane Washington
Quote:
That could be good or bad. If the guy already has a "numbers matching" block in his car then seeing this thread isn't going to make his day.....


I guess that would depend on whether or not he paid numbers matching money for the car but got a re-stamped block in the deal instead, otherwise I'd guess it wouldn't be a bad thing at all.

I'd be doing the happy dance big time if it were my car and there was an opportunity to get my numbers block back, has the block ever been hurt or repaired Andy?

Top
#2383460 - 10/07/17 02:04 PM Re: Hemi block ID help [Re: AndyF]
mickm Offline
master

Registered: 07/26/06
Posts: 3971
Loc: California
Originally Posted By AndyF


That could be good or bad. If the guy already has a "numbers matching" block in his car then seeing this thread isn't going to make his day.....

I should say that this is not my block. I saw the block sitting in a shop the other day and it was so clean and the stamps so clear that I thought I'd shoot some pictures of it just to see what it was. The engine appears to be complete with original intake, carbs, crank, rods, etc. all sitting there. I do not know the back story on the engine but if the owner of the car wants to contact me I could tell them where I saw the engine and they could take it from there. The shop was planning to rebuild the engine so if the car owner wants to buy it before it gets rebuilt then they'll have to make a quick decision.


Andy, I know what you mean. Could be quite expensive to obtain this block, and then build a whole new engine for your car, but may well be worth it for the owner.

Can we keep this thread going with updates? I would love to hear if anything comes of this.
_________________________


"the orange fun car" 540 Hemi 4 spd 3:54 dana
1 of 1 - only FK5 70 Road Runner that used to be a 383 auto now a 540 Hemi Six-Pack 4 spd in existence

Top
#2383480 - 10/07/17 02:50 PM Re: Hemi block ID help [Re: mickm]
thehemikid Offline
top fuel

Registered: 09/14/09
Posts: 1742
Loc: ky hills
Maybe they could work a deal to swap blocks?

Top
#2383483 - 10/07/17 02:52 PM Re: Hemi block ID help [Re: ScottSmith_Harms]
AndyF Offline
Too Many Posts

Registered: 01/20/03
Posts: 23314
Loc: Oregon
Originally Posted By ScottSmith_Harms
Quote:
That could be good or bad. If the guy already has a "numbers matching" block in his car then seeing this thread isn't going to make his day.....


I guess that would depend on whether or not he paid numbers matching money for the car but got a re-stamped block in the deal instead, otherwise I'd guess it wouldn't be a bad thing at all.

I'd be doing the happy dance big time if it were my car and there was an opportunity to get my numbers block back, has the block ever been hurt or repaired Andy?


Block appeared to be perfect to me. It is 0.030 over and it had old style pistons in it so perhaps it was rebuilt in the 80's or something. I didn't see any damage to anything. Crank looked factory fresh. I didn't spend a bunch of time examing parts since it isn't my motor and I don't know who owns the motor. I just happened to see this super clean Hemi block sitting on the floor and asked if I could shoot some pictures of it. I had never seen the rail stampings so nice and crisp. Thought it was the best original Hemi block I'd ever seen.

Top
#2383486 - 10/07/17 03:00 PM Re: Hemi block ID help [Re: AndyF]
EV2Bird Offline
On Vacation

Registered: 06/23/14
Posts: 2947
Loc: Kansas Roads Between 0 and 140...
I know you are/were just trying to help and alot do it but this is why myself and many do not post specific info about others property without direct permission or in some cases our own cars on the web. Some do not favor the internet.

There are 3-4-5 on this board who could of helped with the vin info via pm.

Top
#2383499 - 10/07/17 03:47 PM Re: Hemi block ID help [Re: 6bblgt]
John_Kunkel Offline
I Live Here

Registered: 01/20/03
Posts: 18873
Loc: Rio Linda, CA
Originally Posted By 6bblgt

there's a fifth digit to the sequence number for 1970 model year


I realize that but according to Galen's White Book "Any numbers found after those 13 digits are of no meaning." shruggy
_________________________
I'm supposed to respect my elders, but its getting harder and harder for me to find one now.

Top
#2383783 - 10/08/17 09:23 AM Re: Hemi block ID help [Re: Alaskan_TA]
earlymopar Offline
super stock

Registered: 01/30/03
Posts: 752
Loc: Oregon
I for one am interested in knowing how you identified this as coming from a specific car. I understand there is a link to the VIN but don't understand how the link is made.

- EM

Top
Page 1 of 2 1 2 >

Advertisement
Sponsored Link
Forum Stats
24,999 Registered Members
32 Forums
185,185 Topics
2,145,148 Posts

Most users ever online: 882 @ 03/05/17 10:15 PM
Moparts Newest Topics
who rebuilds power window motors?
by hotairballoonpilot
12/11/17 05:48 PM
what year is this 904? An early less splines input shaft?
by RapidRobert
12/11/17 05:42 PM
92 Ramcharger no start issue
by Slingshot
12/11/17 04:52 PM
how to fix distributor vaccum head
by moparpro
12/11/17 03:51 PM