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Hemi block casting dates #2460403
03/03/18 11:18 AM
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curbman68 Offline OP
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Is there a list anywhere of known casting dates for Hemi blocks? Have a block that the year is ground down, month and day are still there though.

IMG_0631.JPGIMG_0632.JPG
Re: Hemi block casting dates [Re: curbman68] #2460429
03/03/18 12:39 PM
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This is a list I've compiled over the years. Don't see any matches right off the bat.

8/16/1965
1/18/1966
6/14/1966
8/16/1966
8/28/1966
10/10/1966
9/30/1968
1/27/1970
3/18/1974


Wife says too many cars, liquidation coming soon......
Re: Hemi block casting dates [Re: 6PakBee] #2460528
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is there a VIN pad stamping area & a "MN" or any other stampings on the bottom?

I can add these "*":

8/16/1965
1/18/1966
6/14/1966
8/16/1966
8/28/1966
10/10/1966
* 1/15/1968
9/30/1968
* 11/18/1968
* 5/10/1969
* 5/26/1969
1/27/1970
3/18/1974

Re: Hemi block casting dates [Re: 6bblgt] #2460531
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Is there any truth to what a friend and '70 Hemi Cuda owner once told me that Hemi blocks were "aged" in outdoor storage for months after casting and before engine assembly?


Mike

Re: Hemi block casting dates [Re: 6bblgt] #2460570
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Thanks for the responses, I'm thinking the 5/10/69 looks pretty likely, I was thinking it might be a 5/19, but it could be either a 9 or a 0. It an NOS over the counter block, so no numbers I can see anywhere. Only the normal WT on the pad

IMG_0649.JPGIMG_0648.JPGIMG_0647.JPG
Re: Hemi block casting dates [Re: curbman68] #2460589
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the closest cast 1/15/68 to assembled 3/12/68 dates I have any info on are ~2-months, but most are much longer - that may be due to size of batches & rate at which they were used work was it intentional?? shruggy

the '66 & 1/68 blocks don't have the raised pad for the VIN stamp

Re: Hemi block casting dates [Re: 6bblgt] #2460803
03/04/18 12:04 PM
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Originally Posted By 6bblgt
is there a VIN pad stamping area & a "MN" or any other stampings on the bottom?

I can add these "*":

8/16/1965
1/18/1966
6/14/1966
8/16/1966
8/28/1966
10/10/1966
* 1/15/1968
9/30/1968
* 11/18/1968
* 5/10/1969
* 5/26/1969
1/27/1970
3/18/1974
Add the date 4/15/68, the first of them was installed on the first Hemi roadrunner, built on 7/28, Lynch road plant.

Re: Hemi block casting dates [Re: curbman68] #2460935
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Here are a few to add

5-4-64
9-24-64
8-17-65
1-17-66
6-27-66
3-3-69

Re: Hemi block casting dates [Re: 6bblgt] #2460991
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Originally Posted By 6bblgt
the closest cast 1/15/68 to assembled 3/12/68 dates I have any info on are ~2-months, but most are much longer - that may be due to size of batches & rate at which they were used work was it intentional?? shruggy

the '66 & 1/68 blocks don't have the raised pad for the VIN stamp


I think I remember actually seeing a photo of raw just cast Hemi blocks rusting and stacked outside what may have been the casting foundry?? Seems to make some sense to have the cast iron age at least a short time.

Re: Hemi block casting dates [Re: curbman68] #2460994
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Re: Hemi block casting dates [Re: curbman68] #2460995
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I can also add 5-13-71

Re: Hemi block casting dates [Re: curbman68] #2461057
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Re: Hemi block casting dates [Re: JRepucci] #2461137
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That casting date is also the same for the 71 Hemi GTX,
4 speed car, that i owned for 28 years.
Original engine to the car.

Re: Hemi block casting dates [Re: hemi71x] #2461150
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I have got this block that is cast 1-26-70.

Stan

82518E79-05E6-40ED-9984-67D6234F90B5.jpeg
Last edited by HemiStan; 03/04/18 09:37 PM.
Re: Hemi block casting dates [Re: 6bblgt] #2461182
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Originally Posted By 6bblgt
the closest cast 1/15/68 to assembled 3/12/68 dates I have any info on are ~2-months, but most are much longer - that may be due to size of batches & rate at which they were used work was it intentional?? shruggy

the '66 & 1/68 blocks don't have the raised pad for the VIN stamp


I will check again, but I have a 1/15/68 block assembled 24May68 and it has the raised pad for a VIN but it is blank. Vin is in the normal spot for a 68 hemi motor.

Re: Hemi block casting dates [Re: HemiStan] #2461188
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Originally Posted By HemiStan
I have got this block that is cast 1-26-70.

Stan


I turned 17 years old on that date. lol

Re: Hemi block casting dates [Re: JRepucci] #2461189
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Re: Hemi block casting dates [Re: curbman68] #2461218
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10-31-66. Spooky isn’t it?


70 Challenger RT/SE project - need NOS pillar emblems $$ LMK
Re: Hemi block casting dates [Re: curbman68] #2461262
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4/15/68 needs to be on there

Re: Hemi block casting dates [Re: curbman68] #2461339
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Re: Hemi block casting dates [Re: hemicar1971] #2461347
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Originally Posted By hemicar1971
Can not find the list I have of casting dates for hemi blocks but here are some dates for blocks I owned or know about.

1 17 66
8 23 66
11 11 68
5 19 69
1 20 70
1 21 70

So many blocks cast during 1966 Chrysler likely did not have to cast in 1967.


Hmmmmmmmmm wonder if Chrysler just did that to fudge the street Hemi homologation numbers for NASCAR ('66), (and NHRA) after boycotting NASCAR in '65 ....just saying wink

Last edited by A12; 03/05/18 05:30 AM.
Re: Hemi block casting dates [Re: A12] #2461398
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5-19-69 is the date of this one!

IMG_0021.JPG
Re: Hemi block casting dates [Re: hemicar1971] #2461412
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Originally Posted By hemicar1971
...So many blocks cast during 1966 Chrysler likely did not have to cast in 1967.


I hate to say always or never but the topic of '67 casting Hemi blocks has been bandied about numerous times. The consensus was that there were NO 1967 castings as none have ever been found. My personal OPINION is that Chrysler thought they were going to sell a lot of Hemi engines in 1966 and when that didn't happen, there was no need for '67 castings as they had plenty left over from 1966.


Wife says too many cars, liquidation coming soon......
Re: Hemi block casting dates [Re: curbman68] #2461426
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Re: Hemi block casting dates [Re: hemicar1971] #2461454
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Originally Posted By hemicar1971
When it comes down to the 1967 hemi block being cast there were a lot of blocks cast in the 1967 manufacturing year. ....


True, but so far no one has produced a block with a 1967 casting date.

On a side note, I was curious what day of the week the blocks were cast on.

5/4/1964 Monday
9/24/1964 Thursday
8/16/1965 Monday
8/17/1965 Tuesday
1/17/1966 Monday
1/18/1966 Tuesday
6/14/1966 Tuesday
6/27/1966 Monday
8/16/1966 Tuesday
8/23/1966 Tuesday
8/28/1966 Sunday
10/10/1966 Monday
10/31/1966 Monday
1/15/1968 Monday
4/15/1968 Monday
9/30/1968 Monday
11/11/1968 Monday
11/18/1968 Monday
3/3/1969 Monday
5/10/1969 Saturday
5/19/1969 Monday
5/26/1969 Monday
1/19/1970 Monday
1/20/1970 Tuesday
1/21/1970 Wednesday
1/26/1970 Monday
1/27/1970 Tuesday
5/13/1971 Thursday
3/18/1974 Monday


Wife says too many cars, liquidation coming soon......
Re: Hemi block casting dates [Re: curbman68] #2461476
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Where the hemi's cast along with all the other blocks at the same facility, or, was it a separate vendor?
I know that over the years it's been mentioned Chrysler blocks were high nickle alloy always lead me to believe it was the same source.

Re: Hemi block casting dates [Re: curbman68] #2461504
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The date is definitely 5/19/69. Here is a picture of a matching block.

IMG_2527 (1).jpg
Re: Hemi block casting dates [Re: hemicar1971] #2461533
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Originally Posted By hemicar1971
When it comes down to the 1967 hemi block being cast there were a lot of blocks cast in the 1967 manufacturing year. If you look at the casting dates.

6 14 66
6 27 66
8 16 66
8 23 66
8 28 66
10 10 66
10 31 66

There could be more dates to add from June to December in 1966. Also for the longest time the 1967 Hemi Build number were not correct and very low for know built Hemi Vehicles. Not all motors make it into Vehicles and motors were sent to Drag Race Teams, Nascar Teams and for Marine use and the General Public Dealer Counter sales.


You mean FOR the 67 model year. wave


The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

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Re: Hemi block casting dates [Re: curbman68] #2461537
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Re: Hemi block casting dates [Re: curbman68] #2461629
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Quote:
As for hemi blocks being cast from January 1st 1967 to December 31, 1967 I have not seen any.


That's correct because there were none cast during that time period.

*Also, forgot to add one of mine to the list, 3-28-66

Re: Hemi block casting dates [Re: Mike W] #2461679
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Originally Posted By Mike W
The date is definitely 5/19/69. Here is a picture of a matching block.

Looks like a dead ringer to me.

Re: Hemi block casting dates [Re: curbman68] #2462010
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Re: Hemi block casting dates [Re: curbman68] #2462023
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Hello all. My name is Tom Kelly and I'm retired from Chrysler. I have some info that may help. I started at the Chrysler Indianapolis Foundry in July 1972 in Production Control. Being the Newby I ended up on night shift taking inventory. At that time there were over 100,000 rough castings of various displacement palleted in the outdoor storage yard and a few thousand more of high demand block in a late storage warehouse on the site. The castings were primarily stacked in rows by displacement. At that time if the engine machining plant called for a quantity of blocks and they were in production, they loaded straight on the trucks and headed to the Engine Plants. We produced all of the V8 (though I do recall some were outsourced to International Harvester Foundry across town in Indy when we couldn't keep up with demand; primarily 318s while I was there.) The B/RBs went to Trenton MI for machining, 318 & 340s to Mound Road MI and the 360 to Windsor Ontario CA for machining and assy. We only did rough grinding of the blocks. Of interest, though no demand in 1972, there were still rough casting 273, 361, early and late style 383, 413. And a few hundred HEMIs still palleted in the yard. I was drafted into the Army in October 1972. We didn't ship any Hemi blocks during my time in 1972 to my knowledge. I had a 69 340 Dart Swinger at the time and was in awe of those HEMIs so kept an eye on them. Also of interest, the Hemi tooling was still in a caged area of the warehouse at that time. I even loved looking at it when walking the area. Regarding usage of blocks, when demand exceeded live production or a block order came in for a casting not being produced at the time (we had two production lines and one was generally dedicated to 318s due to demand) they would be pulled from warehouse first and if none they were pulled from the yard. Yard block were depalleted, hung on conveyor hooks & sent through one of two shot blast machines (Wheelabrator & other was a Pangborn Mfrs). Blocks were put back on wooden pallets (24 small blocks & 18 big blocks per pallet). Also of note, depending on demand old casting date blocks would have set in the yard for a long time before being pulled out for blasting & shipment. That would explain old casting dates with much later machine/assembled stamped dates at the Machine Plants. (To be continued)

Re: Hemi block casting dates [Re: tomkelly] #2462037
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Re: Hemi block casting dates [Re: curbman68] #2462045
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(Continued) when I got back from the army and called back to the Foundry it was late 1975 and things had changed due to gas/oil embargo etc. Chrysler had tightened its belt and yard storage of blocks was eliminated. Don't remember seeing the HEMI blocks. The out of production blocks were gone too and don't remember seeing that tooling anymore. The plant (originally the American Foundry in the 1890s, before being purchased by Chrysler around 1949 and officially becoming the Chrysler Indianapolis Foundry in 1958) was closed by the 'braintrust' of Daimler in 2005 and subsequently bulldozed. Its rich heritage was producing the 426 Hemi blocks that won the 1964 Daytona 500, thousands of 340s (including the TA and race blocks), 360, 383, 400, 413, 426w, 440 and production 426 HEMIs. Even the 2.2,2.5, 3.9, 3.5 and later 4.0 L Jeep blocks were produced there. I'll end this long winded note with this info: one of the accountants at the plant gave my a copy of the Plant Gross Production Record from 1961 thru closing. Columns list blocks by displacement and I was told the 426w & 426 Hemi could have been combined in 1964 (evidently not all accountants are car guys!). Anyway the list showed the following rough 426 castings poured in the following years (numbers in 000): 1964-3; 1965-3; 1966-11; 1967-0; 1968-6; 1969-3; 1970-3; 1973-1; 1974-1.
I have a few more interesting Foundry related docs I'll try to get out here in future. Tom

Re: Hemi block casting dates [Re: tomkelly] #2462061
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Re: Hemi block casting dates [Re: curbman68] #2462079
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Re: the "-1" or other "-#" . I contacted one of friends from Foundry pattern/tooling dept to verify my understanding. The dash number after the part number did designate the specific tooling pattern set used to make the block mold. That was used to track in event of a defect found from tooling wear. Same reason for date, clock & day/night characters that are cast into the block. Regarding the count info: As I noted in my text, the accountant that gave me the report told me the 1964 '426 count' was 426W & 426 Hemi because accounting evidently didn't need to differentiate. From accounts in articles by Chrysler's Tom Hoover and Willem Weertman regarding work on the blocks in late 1963 until the 11th hour before Daytona, those blocks were likely considered non production and were not included since such a low count. Production was counting in 'thousands' so makes sense that 426 Wedge blocks were folded into the 1964 count.

Re: Hemi block casting dates [Re: curbman68] #2462084
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This is excellent information! Thanks Tom Kelly!

Stan

Re: Hemi block casting dates [Re: tomkelly] #2462085
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Tom, do you know if the yearly counts are stated as "calendar year" or "model year"?

I would think 426 block production was combined for '65 also

from a couple different sources -
model year 426 HEMI production cars w/VIN (426 cu.in. production):
1964 ~ 180
1965 ~ 203 (6,929)
1966 ~ 2,731 (3,629)
1967 ~ 1,274 (1,258)
1968 ~ 2,511 (2,400 "rounded to 100s" * & I'd bet B0/L0 not counted)
1969 ~ 2,100
1970 ~ 1,656
1971 ~ 403 (486)

11,058+ 426 HEMI cars

Re: Hemi block casting dates [Re: curbman68] #2462126
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Dan, not sure on the model year vs calendar year question but I'd guess those are calendar year counts. In the Chrysler world hierarchy we were a component plant so life didn't seem to revolve around model year like the assembly plants. Not sure what corp planning group called the shots on our production run counts but they would have included warranty replacement blocks & 'over the counter' sales projections too.
Dan, by the way, I've been on this and some of the other Mopar sites for awhile now and have always appreciated the excellent information and help you've provided the groups. You are an outstanding asset to our hobby! Thank you! Tom

Re: Hemi block casting dates [Re: Mike W] #2462177
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I also have a block with the 5-19-69 casting. I can submit one cast on 6-10-68

Re: Hemi block casting dates [Re: curbman68] #2462205
03/06/18 08:55 PM
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hemicar1971 Offline
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Re: Hemi block casting dates [Re: hemicar1971] #2462365
03/07/18 12:27 AM
03/07/18 12:27 AM
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Las Vegas, NV
6bblgt Offline
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no - the 11,058 number is not complete, I'm sure it is short in the 5-10% range (500-1,000 cars)

but using those foundry numbers it shows around twice as many HEMIs were cast VS. the number that ended up in a production car

what's the timeline - around what year did the 426 HEMI start to outnumber 392 HEMI in dragster/funny car ranks work and were those cast iron blocks?

Re: Hemi block casting dates [Re: curbman68] #2462378
03/07/18 12:58 AM
03/07/18 12:58 AM
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Fragged State of Skuldruggery
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I too would like to thank Tom for taking time to write about this.
Is there any data to breaks down what blocks were done at one of the two facilities (any way to tell if there are any corn-binder hemi's).
If I'm reading right it appears that 31k 426 w and hemi blocks were cast (don't know if the numbers were rounded, and included "bad" castings, as they were likely found later during machining.
In an old nhoa newsletter I read numbers of "cars" built being higher than 11k, seem to recall somewhere in the high 13k? I'm pretty sure that included all the race (non vinned) vehicles, and did not include engines only.
I had to edit the above as my old computer sometimes does not take keystokes. I should do more proofreading, sorry.

Re: Hemi block casting dates [Re: curbman68] #2462382
03/07/18 01:21 AM
03/07/18 01:21 AM
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Spokane Washington
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Yes, a HUGE thank you Mr. Kelly!

We sorely need more people like yourself who were actually there back in the day and whom can add good information to our hobby's historical database. Information on these engines and vehicles is getting harder and harder to compile as the years go by.
beer

Re: Hemi block casting dates [Re: curbman68] #2462387
03/07/18 01:32 AM
03/07/18 01:32 AM
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Re: Hemi block casting dates [Re: curbman68] #2462407
03/07/18 02:19 AM
03/07/18 02:19 AM
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Danville IN
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All, you're very welcome & glad the Foundry info was of interest. By the way I did finally get my own Hemi. My J code 68 Red Road Runner still has its original drivetrain. I pulled the car from a barn lot in 1982 about 5 miles from my home and still have it. Guess I'll have to climb under it now to check its casting date!
Another bit of info: when the engine blocks were hooked & pulled out of their sand mold to air cool they were put into trays on a mile long cooling conveyor that snaked overhead all around the plant. Once semi cooled, they were set on vibratory conveyors to shake out the core sand from bores, water jackets, etc. Blocks would occasionally fall off the cooling line trays. If it jammed Maintenance men would have to find it & repair the conveyor. Prior to the plant closing in early 2000 or so, a 1978 440 casting was found in a remote area of the cooling line where it caused no jam and lay for years. It was removed & put on display in our training building lobby. When the plant closed, I got to bring it home. If you think a machined cast iron 440 is heavy you should try lifting a rough casting! Tom

Re: Hemi block casting dates [Re: tomkelly] #2462427
03/07/18 04:23 AM
03/07/18 04:23 AM
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USA
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Originally Posted By tomkelly
All, you're very welcome & glad the Foundry info was of interest. By the way I did finally get my own Hemi. My J code 68 Red Road Runner still has its original drivetrain. I pulled the car from a barn lot in 1982 about 5 miles from my home and still have it. Guess I'll have to climb under it now to check its casting date!
Another bit of info: when the engine blocks were hooked & pulled out of their sand mold to air cool they were put into trays on a mile long cooling conveyor that snaked overhead all around the plant. Once semi cooled, they were set on vibratory conveyors to shake out the core sand from bores, water jackets, etc. Blocks would occasionally fall off the cooling line trays. If it jammed Maintenance men would have to find it & repair the conveyor. Prior to the plant closing in early 2000 or so, a 1978 440 casting was found in a remote area of the cooling line where it caused no jam and lay for years. It was removed & put on display in our training building lobby. When the plant closed, I got to bring it home. If you think a machined cast iron 440 is heavy you should try lifting a rough casting! Tom


Thanks Tom for the great info!!!!! Any pics of that rough casted 440?


I'm the CARETAKER of Weinstats '69 440 'cuda registry and have 104 of the 360 cars to date. 84 fastbacks/20 coupes. Always looking for new(REAL M-code) '69 440 'cudas to add to the registry so drop me a note if any are found or known. This isn't a publicly released registry. Thanks, Dave
Re: Hemi block casting dates [Re: curbman68] #2462448
03/07/18 09:53 AM
03/07/18 09:53 AM
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PA
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This is some seriously great reading! Thanks Tom!!!

Re: Hemi block casting dates [Re: curbman68] #2462568
03/07/18 02:17 PM
03/07/18 02:17 PM
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Sacramento CA
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Thank you Mr Kelly for posting and thank you for your service to our country

Re: Hemi block casting dates [Re: Morty426] #2462663
03/07/18 04:48 PM
03/07/18 04:48 PM
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Ontario, Canada
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Originally Posted By Morty426
Thank you Mr Kelly for posting and thank you for your service to our country
up bow

Re: Hemi block casting dates [Re: hemicar1971] #2462769
03/07/18 08:32 PM
03/07/18 08:32 PM
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tennessee,usa
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Originally Posted By hemicar1971


I believe this block came out of the TX9 H6E4 1971 Hemi Challenger. No other information on the car. This is information that I have picked up over 40 years of collecting this stuff and it could be correct. No name of who owns the car now or even it the car still existes or who owned the block in the past.

The time period from around January 19th 1970 to the end of the month of January Chrysler ramped up to cast a lot of Hemi Blocks and I even have a 440-6 block cast at this time. My 1971 Hemi Cudas block in cast in this time period also. It is interesting just trying to figure out what happened at Chrysler in 1971 with E body build. Have a few things figured out and then some other information comes out and you wonder how that fits in.


This block is from a 1971 challenger that was listed on the 1990 NHOA hemi vin list. The partial to the car is 1B296087, and the name on the list is from 79-82, and is Christian. It would be awesome if this car is still around.
Matt

Re: Hemi block casting dates [Re: dragon slayer] #2462771
03/07/18 08:34 PM
03/07/18 08:34 PM
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tennessee,usa
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Originally Posted By dragon slayer
Originally Posted By 6bblgt
the closest cast 1/15/68 to assembled 3/12/68 dates I have any info on are ~2-months, but most are much longer - that may be due to size of batches & rate at which they were used work was it intentional?? shruggy

the '66 & 1/68 blocks don't have the raised pad for the VIN stamp


I will check again, but I have a 1/15/68 block assembled 24May68 and it has the raised pad for a VIN but it is blank. Vin is in the normal spot for a 68 hemi motor.

Dragon Slayer, I may have asked you in the past about the 68 block that you mention, but can you PM me or post the partial vin information off that block.
Thank you, Matt

Re: Hemi block casting dates [Re: curbman68] #2462773
03/07/18 08:36 PM
03/07/18 08:36 PM
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Re: Hemi block casting dates [Re: tomkelly] #2462809
03/07/18 09:50 PM
03/07/18 09:50 PM
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Southeast Virginia
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Originally Posted By tomkelly
My J code 68 Red Road Runner


You sir - have an excellent taste in cars!
Thanks for the great info.

My 68 Runner, 426, column auto, bench seat...

jims car mag1.jpg
Re: Hemi block casting dates [Re: curbman68] #2462894
03/07/18 11:59 PM
03/07/18 11:59 PM
Joined: Mar 2008
Posts: 8
Danville IN
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tomkelly Offline
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Thanks for the kind words. My first time trying to upload attachment photos. If it doesn't work, I'll try again later. If it works here are a couple of pics of Chrysler Indy Foundry rough casting. Was actually a 1977 440 casting found twenty plus years after being poured after having fallen off the casting cooling line in remote area of the plant. Tom

IMG_8846.JPGIMG_8847.JPG
Re: Hemi block casting dates [Re: tomkelly] #2463275
03/08/18 07:21 PM
03/08/18 07:21 PM
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Posts: 2,056
Haslet, Texas
RapidusMaximus Offline
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WOW, great read up and what a conversation piece you have there Tom...you should make a coffee table out of it and put it in your man cave...or formal living room whichever you desire laugh2 beer


1968 Plymouth GTX 440 4 Speed Dana
1967 Small block Dart under construction
1974 Dodge P/U Long Bed Stepside 318 Auto
1975 Jeep CJ5

2016 Dodge Ram Hemi 1500
Re: Hemi block casting dates [Re: curbman68] #2463302
03/08/18 08:16 PM
03/08/18 08:16 PM
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Chicago Blackhawks
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hemicar1971 Offline
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Re: Hemi block casting dates [Re: curbman68] #2463825
03/09/18 04:09 PM
03/09/18 04:09 PM
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cheshire, ct
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davesmopars Offline
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Thanks Tom for posting all your info and everyone else doing research.

Re: Hemi block casting dates [Re: davesmopars] #2463837
03/09/18 04:34 PM
03/09/18 04:34 PM
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cheshire, ct
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davesmopars Offline
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I have a Hemi from BO29 car
casting date
10 3 66

For some reason I cannot post picture again

Last edited by davesmopars; 03/09/18 05:15 PM.
Re: Hemi block casting dates [Re: davesmopars] #2463868
03/09/18 05:52 PM
03/09/18 05:52 PM
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Posts: 42,464
Spokane Washington
ScottSmith_Harms Offline
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Hi Dave, can you also post pics of any stampings you find on your B0 Barracuda block?

Re: Hemi block casting dates [Re: ScottSmith_Harms] #2463908
03/09/18 07:08 PM
03/09/18 07:08 PM
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cheshire, ct
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I update my phone and now my pictures are not working again. This happen before and I was able to put my phone to old school settings and that worked. Moparts needs to catch up to speed. I am still trying to fix my phone

Re: Hemi block casting dates [Re: curbman68] #2464486
03/10/18 10:34 PM
03/10/18 10:34 PM
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Chicago
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curbman68 Offline OP
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What a ton of great info, I got the answer I was looking for and a LOT more. Thanks to everyone that contributed

Last edited by curbman68; 03/10/18 10:34 PM.
Re: Hemi block casting dates [Re: curbman68] #2465261
03/12/18 03:46 PM
03/12/18 03:46 PM
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cheshire, ct
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davesmopars Offline
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Here is the BO29 Block
sorry for the poor picture this was the only way I could get it to post

IMG_E1100.JPGIMG_E1101.JPG
Last edited by davesmopars; 03/12/18 03:53 PM.
Re: Hemi block casting dates [Re: curbman68] #2465300
03/12/18 05:13 PM
03/12/18 05:13 PM
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Stuttgart, Arkansas
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I agree and thanks for your insight Tom


2011 Drag Pak Challenger
Re: Hemi block casting dates [Re: curbman68] #2465412
03/12/18 09:15 PM
03/12/18 09:15 PM
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Spokane Washington
ScottSmith_Harms Offline
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Thanks Davesmopars, anything stamped on the oil pan rail extension? VIN# on the upper rear bell housing mating surface opposite the oil sender hole?

Re: Hemi block casting dates [Re: curbman68] #2465663
03/13/18 10:20 AM
03/13/18 10:20 AM
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Abilene, Texas
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The MP stamped on that block is familiar. I had two of those at one time. I did not think much about it. I traded one off for a better dated block for my 65 car. Then I read an article in one of the Mopar mags that said they were installed in 67 RO/WO cars. If my memory serves me correctly, they were both cast on 10/31/66, Halloween. I sold my last one to a board member here with a 67 WO car. I think he still has it. Joel might remember.

Re: Hemi block casting dates [Re: curbman68] #2465717
03/13/18 12:42 PM
03/13/18 12:42 PM
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Spokane Washington
ScottSmith_Harms Offline
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This one came out of a 67 Hemi Charger, I think the HC was reversed by mistake, hence no MP.

29066335_10157366575387501_9185484648573042688_o.jpg
Re: Hemi block casting dates [Re: hemicar1971] #2467961
03/18/18 02:07 AM
03/18/18 02:07 AM
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Chicago Blackhawks
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Re: Hemi block casting dates [Re: hemicar1971] #2467963
03/18/18 02:20 AM
03/18/18 02:20 AM
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Spokane Washington
ScottSmith_Harms Offline
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hemicar1971,

Do you have any other info on this block? Assembly info, etc?

1 17 66

Re: Hemi block casting dates [Re: curbman68] #2467975
03/18/18 02:46 AM
03/18/18 02:46 AM
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Last edited by hemicar1971; 04/01/18 03:52 PM.

1971 HEMI E BODY REGISTRY
Re: Hemi block casting dates [Re: curbman68] #2467980
03/18/18 03:07 AM
03/18/18 03:07 AM
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Spokane Washington
ScottSmith_Harms Offline
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Ok, I have had 3 with that same 1-17-66 casting date, two were replacement blocks with no stampings, just WT on the pads. The third was CH 426 12-21 16

Re: Hemi block casting dates [Re: curbman68] #2467987
03/18/18 03:52 AM
03/18/18 03:52 AM
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10 17 63 Thursday
10 18 63 Friday


4 6 64 Monday
5 4 64 Monday
5 5 64 Tuesday
9 24 64 Thursday

3 9 65 Tuesday
8 16 65 Monday
8 17 65 Tuesday

1 8 66 Saturday
1 17 66 Monday
1 18 66 Tuesday
6 13 66 Monday
6 14 66 Tuesday
6 27 66 Monday
8 16 66 Tuesday
8 23 66 Tuesday
8 28 66 Sunday
10 3 66 Monday
10 10 66 Monday
10 14 66 Friday
10 31 66 Monday

1 15 68 Monday
4 15 68 Monday
6 10 68 Monday
8 5 68 Monday
8 15 68 Thursday
8 19 68 Monday
8 30 68 Friday
9 30 68 Monday
10 7 68 Monday
10 8 68 Tuesday
10 10 68 Monday
11 11 68 Monday
11 18 68 Monday

3 3 69 Monday
3 26 69 Wednesday
5 10 69 Saturday
5 19 69 Monday
5 26 69 Monday
7 28 69 Monday
12 20 69 Saturday
12 30 69 Tuesday

1 19 70 Monday
1 20 70 Tuesday
1 21 70 Wednesday
1 26 70 Monday
1 27 70 Tuesday
2 5 70 Thursday
5 ? 70
7 22 70 Monday

5 13 71 Thursday

? ? 72

2 12 73 Monday

3 18 74 Monday
5 16 74 Thursday




Re: Hemi block casting dates [Re: hemicar1971] #2467993
03/18/18 04:19 AM
03/18/18 04:19 AM
Joined: Jan 2003
Posts: 15,850
Las Vegas, NV
6bblgt Offline
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8 23 66 Tuesday
8 28 66 Sunday *

5 10 69 Saturday *
5 19 69 Monday

3 26 69 Wednesday *
5 26 69 Monday

* I wonder if these are mis-identified? scope anyone have pics of 8*28*66 3*26*69 or 5*10*69 ?


Re: Hemi block casting dates [Re: curbman68] #2467994
03/18/18 04:59 AM
03/18/18 04:59 AM
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Last edited by hemicar1971; 04/01/18 03:50 PM.
Re: Hemi block casting dates [Re: curbman68] #2468127
03/18/18 03:18 PM
03/18/18 03:18 PM
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Holtsville NY.
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Great topic and an awesome read. For what it is worth, you can add another 5/26/69 to the list as that is what mine is. Rob


1971 Hemi Cuda Convertible clone

2010 Camaro SS
Re: Hemi block casting dates [Re: curbman68] #2468402
03/19/18 12:23 AM
03/19/18 12:23 AM
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West Central Wi.
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West Central Wi.
Mine are 6-10-68, and 10-7-68 both are 1969's


HEMI,S ARE FOREVER!!!
Re: Hemi block casting dates [Re: srt] #2468753
03/19/18 08:26 PM
03/19/18 08:26 PM
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Sweden
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To answer the post made by member srt earlier in this thread:
In 2003 I was in contact with Willem Weertman when trying to find out more about the claimed "high nickel fuel block" of the early 70s.

He gave a long reply that I partly quote:

All the Hemi blocks from the first blocks cast in 1963 to the blocks now being marketed through Mopar Performance have essentially the same metallurgy, which contains nickel.

Chryslers Indianapolis Foundry was the source of all Hemi blocks until the Street Hemi was discontinued in 1971. During this 1963-1971 time span, Indianapolis Foundry was the source of all production V8 castings.
The iron metallurgy was exactly the same as all the high volume V-8 Engines. Chryslers block iron was already a nickel-alloy iron, the nickel level being slightly higher than other auto companies block iron.
Unlike the high-volume V-8 blocks, all the Hemi block castings, including the Street Hemis, were given an annealing treatment for stress relief. This is noted in the SAE paper 660342, "Chrysler Corporations New Hemi Head High Performance Engines".

After the Street Hemi went out of production, Mopar Performance took over the after-market Hemi block business. Other, small-volume speciality foundries were used and very slight Changes in nickel content did occur - within the Material Standard acceptable limits.
If the nickel got a little too high, complaints would come from the tool shops machining the Mopar blocks and from the race teams that the blocks were too hard and were difficult to machine and hone.

Nodular cast iron (also called ductile iron) was never used for any block casting, not even experimentally. However, nodular cast iron has been used for the bearing caps except on some of the first Street Hemi Engines, which used grey iron.

Starting in February 1970, the bulkheads of all blocks were thickened. Your date of Jan 19, 1970 sounds OK.

Soon after Mopar Performance started furnishing blocks, they brought out a siamesed-bore block that was stronger, heavier and allowed larger bore sizes, up to 4,50 inches. This was called a "Fueler" block at the time. Shortly afterwards, aluminum blocks by Donovan Engineering and Keith Black became available and the fuelers switched to aluminum almost 100%.

Mopar Performance continues to offer a non-siamesed "Street" iron block and the siamesed heavier block in the 2002 Mopar Performance Parts Catalog.

I have no information on specific test results using nitromethane. I recall the work was done to generate a spark advance calibration. In all probability, the test engine used stock Street Hemi block. There was no design investigation regarding the block´s ability to handle higher cylinder pressures.

In a second reply he also says:

In looking over the notes I made when talking to Larry (Shepard), I noticed he told me when the casting was changed in February 1970 to the heavier webs, Mopar Performance called the new casting a "Fueler" - to distinguish it from the prior casting. Later, when the siamesed bore block was added, the siamesed block became the fueler and the carry-over block became the Street.


To return to the original subject of the thread:
All Hemi D5 blocks I have seen, casting numbers 3577430-1 or -2, have the casting date 1-19-70.
Was only one batch made?

Last edited by MikeN; 03/19/18 08:29 PM.
Re: Hemi block casting dates [Re: curbman68] #2468912
03/20/18 02:44 AM
03/20/18 02:44 AM
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Re: Hemi block casting dates [Re: hemicar1971] #2468916
03/20/18 02:51 AM
03/20/18 02:51 AM
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Las Vegas, NV
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email them to me & I'll post them

Re: Hemi block casting dates [Re: curbman68] #2469235
03/20/18 04:57 PM
03/20/18 04:57 PM
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Michigan
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Transman Offline
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Have a :

3/9/65 casting date
393 stamped on the passenger side pan rail ear
+ - 19 - 65 assembly date
NH 380 on the top pad
This is a Nascar block with the safety wired core plugs

Re: Hemi block casting dates [Re: curbman68] #2469239
03/20/18 05:00 PM
03/20/18 05:00 PM
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Michigan
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Transman Offline
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super stock
T

Joined: Mar 2011
Posts: 996
Michigan
Hemicar71 - to post pictures on Moparts have them on your device, open a post, click on Switch to Full Reply below the posting area, once there notice again below the posting area "file manager". Click that and then browse to your images and then attach.

Simple and freeeeeeee.......

Last edited by Transman; 03/20/18 05:01 PM.
Re: Hemi block casting dates [Re: curbman68] #2469272
03/20/18 06:06 PM
03/20/18 06:06 PM
Joined: Jan 2003
Posts: 4,738
Chicago Blackhawks
H
hemicar1971 Offline
master
hemicar1971  Offline
master
H

Joined: Jan 2003
Posts: 4,738
Chicago Blackhawks

Last edited by hemicar1971; 04/01/18 03:51 PM.

1971 HEMI E BODY REGISTRY
Re: Hemi block casting dates [Re: curbman68] #2469329
03/20/18 07:39 PM
03/20/18 07:39 PM
Joined: Mar 2011
Posts: 996
Michigan
T
Transman Offline
super stock
Transman  Offline
super stock
T

Joined: Mar 2011
Posts: 996
Michigan
Test


IMG_0054.JPG
Last edited by Transman; 03/20/18 07:43 PM.
Re: Hemi block casting dates [Re: curbman68] #2469330
03/20/18 07:41 PM
03/20/18 07:41 PM
Joined: Mar 2011
Posts: 996
Michigan
T
Transman Offline
super stock
Transman  Offline
super stock
T

Joined: Mar 2011
Posts: 996
Michigan
Hemicar71 - you are correct - something is broke. Just tried it and no soap.

Sorry - it normally works as easy as I posted.

Maybe the moderators will see this and have it corrrcted.

Ok, I tried again and it worked. Not sure what is going on.


Last edited by Transman; 03/20/18 07:43 PM.
Re: Hemi block casting dates [Re: Transman] #2470693
03/22/18 09:30 PM
03/22/18 09:30 PM
Joined: Sep 2009
Posts: 1,776
ky hills
thehemikid Offline
top fuel
thehemikid  Offline
top fuel

Joined: Sep 2009
Posts: 1,776
ky hills
Know of

4-6-64
5-16-74

Last edited by thehemikid; 03/22/18 09:37 PM.
Re: Hemi block casting dates [Re: curbman68] #2577971
11/13/18 04:25 PM
11/13/18 04:25 PM
Joined: Mar 2005
Posts: 1,006
Green Lane, PA
sawdust Offline
super stock
sawdust  Offline
super stock

Joined: Mar 2005
Posts: 1,006
Green Lane, PA
Here is the fifth block cast. Was done on 10/18/1963 The early ones had some interesting features, looked more like a modified max wedge block which they were apparently.

10-18-63 block 1.png10-18-63 block 2.png10-18-63 block 3.png

1967 RO23 4 speed
1967 RO23 4 speed "Poison Ivy"
1967 RO23 4 speed "A-Town Hustler"
1967 NSS Belvedere Post 4 speed
1970 Triple red hemi cuda
2016 PCP Hellcat M6
Re: Hemi block casting dates [Re: curbman68] #2578061
11/13/18 07:58 PM
11/13/18 07:58 PM
Joined: Jan 2012
Posts: 1,667
Stuttgart, Arkansas
rickseeman Offline
top fuel
rickseeman  Offline
top fuel

Joined: Jan 2012
Posts: 1,667
Stuttgart, Arkansas
There is supposedly some on 10-17-63


2011 Drag Pak Challenger
Re: Hemi block casting dates [Re: curbman68] #2578305
11/14/18 11:52 AM
11/14/18 11:52 AM
Joined: Jan 2003
Posts: 4,738
Chicago Blackhawks
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hemicar1971 Offline
master
hemicar1971  Offline
master
H

Joined: Jan 2003
Posts: 4,738
Chicago Blackhawks
The casting date of 10-17-63 is the earliest block I have seen and it is on the list I had posted earlier.

Re: Hemi block casting dates [Re: curbman68] #2578633
11/15/18 02:50 AM
11/15/18 02:50 AM
Joined: Jan 2003
Posts: 4,738
Chicago Blackhawks
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hemicar1971 Offline
master
hemicar1971  Offline
master
H

Joined: Jan 2003
Posts: 4,738
Chicago Blackhawks
http://www.thehemi.com/forums/viewtopic.php?t=3481

If the link shows up here is a picture of 10-17-63 Hemi Block. I think Kirkpatrick owns the block. I have a set of the first heads cast.

Re: Hemi block casting dates [Re: ScottSmith_Harms] #2580021
11/18/18 11:07 PM
11/18/18 11:07 PM
Joined: Jun 2012
Posts: 24
Orlando, FL
ChargerKnight66 Offline
member
ChargerKnight66  Offline
member

Joined: Jun 2012
Posts: 24
Orlando, FL
I also have one with a 1-17-66 casting date that's a BH 426.
Can't figure out how to post a picture of it.

Re: Hemi block casting dates [Re: ChargerKnight66] #2580084
11/19/18 02:59 AM
11/19/18 02:59 AM
Joined: Jan 2003
Posts: 42,464
Spokane Washington
ScottSmith_Harms Offline
Mr Wizzard
ScottSmith_Harms  Offline
Mr Wizzard

Joined: Jan 2003
Posts: 42,464
Spokane Washington
Must have cast a bunch of 1-17-66 blocks, I have two and both are replacements with no stampings, have also seen 7 others, some assembled BH426 (2), some CH426 (3) and 2 built for 68's with stamped in VINs.

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