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#2460403 - 03/03/18 08:18 AM Hemi block casting dates
curbman68 Offline
enthusiast

Registered: 10/09/05
Posts: 365
Loc: Chicago
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.


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#2460429 - 03/03/18 09:39 AM Re: Hemi block casting dates [Re: curbman68]
6PakBee Offline
master

Registered: 01/20/03
Posts: 5690
Loc: North Dakota
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
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#2460528 - 03/03/18 12:58 PM Re: Hemi block casting dates [Re: 6PakBee]
6bblgt Offline
I Live Here

Registered: 01/20/03
Posts: 15642
Loc: Las Vegas, NV
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
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#2460531 - 03/03/18 01:08 PM Re: Hemi block casting dates [Re: 6bblgt]
A12 Offline
I Live Here

Registered: 01/20/03
Posts: 18055
Loc: N.E. OHIO, USA
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

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#2460570 - 03/03/18 03:36 PM Re: Hemi block casting dates [Re: 6bblgt]
curbman68 Offline
enthusiast

Registered: 10/09/05
Posts: 365
Loc: Chicago
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


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#2460589 - 03/03/18 04:35 PM Re: Hemi block casting dates [Re: curbman68]
6bblgt Offline
I Live Here

Registered: 01/20/03
Posts: 15642
Loc: Las Vegas, NV
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
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- Dan

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#2460803 - 03/04/18 09:04 AM Re: Hemi block casting dates [Re: 6bblgt]
robertop Offline
mopar

Registered: 11/25/03
Posts: 425
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.

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#2460935 - 03/04/18 12:29 PM Re: Hemi block casting dates [Re: curbman68]
ScottSmith_Harms Online   content
Mr Wizzard

Registered: 01/20/03
Posts: 42242
Loc: Spokane Washington
Here are a few to add

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

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#2460991 - 03/04/18 02:33 PM Re: Hemi block casting dates [Re: 6bblgt]
A12 Offline
I Live Here

Registered: 01/20/03
Posts: 18055
Loc: N.E. OHIO, USA
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.

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#2460994 - 03/04/18 02:38 PM Re: Hemi block casting dates [Re: curbman68]
hemicar1971 Offline
master

Registered: 01/19/03
Posts: 4637
Loc: Chicago Blackhawks
/

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#2460995 - 03/04/18 02:38 PM Re: Hemi block casting dates [Re: curbman68]
curbman68 Offline
enthusiast

Registered: 10/09/05
Posts: 365
Loc: Chicago
I can also add 5-13-71

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#2461057 - 03/04/18 04:38 PM Re: Hemi block casting dates [Re: curbman68]
JRepucci Online   content
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Registered: 01/20/03
Posts: 2682
Loc: Sacramento,California

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#2461137 - 03/04/18 06:04 PM Re: Hemi block casting dates [Re: JRepucci]
hemi71x Offline


Registered: 01/20/03
Posts: 5119
Loc: Rancho Cordova, California (Sa...


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.
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RF-4C Phantom 69-370 Zweibrucken, Germany

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#2461150 - 03/04/18 06:36 PM Re: Hemi block casting dates [Re: hemi71x]
HemiStan Offline
top fuel

Registered: 06/10/04
Posts: 1636
Loc: Virginia
I have got this block that is cast 1-26-70.

Stan


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Edited by HemiStan (03/04/18 06:37 PM)

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#2461182 - 03/04/18 07:16 PM Re: Hemi block casting dates [Re: 6bblgt]
dragon slayer Offline


Registered: 06/27/14
Posts: 176
Loc: VA
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.

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#2461188 - 03/04/18 07:24 PM Re: Hemi block casting dates [Re: HemiStan]
hemi71x Offline


Registered: 01/20/03
Posts: 5119
Loc: Rancho Cordova, California (Sa...
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
_________________________

RF-4C Phantom 69-370 Zweibrucken, Germany

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#2461189 - 03/04/18 07:24 PM Re: Hemi block casting dates [Re: JRepucci]
hemicar1971 Offline
master

Registered: 01/19/03
Posts: 4637
Loc: Chicago Blackhawks

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#2461218 - 03/04/18 08:45 PM Re: Hemi block casting dates [Re: curbman68]
FC7cuda Offline
super stock

Registered: 12/21/03
Posts: 926
Loc: Dallas, Texas
10-31-66. Spooky isn’t it?
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70 Challenger RT/SE project - need NOS pillar emblems $$ LMK

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#2461262 - 03/04/18 09:36 PM Re: Hemi block casting dates [Re: curbman68]
Morty426 Offline
master

Registered: 03/12/08
Posts: 8784
Loc: Sacramento CA
4/15/68 needs to be on there

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#2461339 - 03/05/18 01:28 AM Re: Hemi block casting dates [Re: curbman68]
hemicar1971 Offline
master

Registered: 01/19/03
Posts: 4637
Loc: Chicago Blackhawks


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