Author Topic: Question about my casting date on motor for 70 Challenger (Read 1646 times)

gomangoRT/SE · « **on:** April 26, 2005 - 05:09:58 PM »

i received a 383HP motor with my car when I bought my 70 RT/SE.� � �The block shows a casting date of 6 11 69� ...... the casting number on the block on the sides read 2468130� 11.� � Down along adjacent to the oil pan where serial numbers go it reads� 9G or perhaps 9C304743.� �What confuses me is the stamping on the pad on top of the block....� � �E383
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �6� 30� 2
� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �HP

Why would a block casted on 6/11/69 not be assembled until a year later........� �If I am remembering correctly the� 6� 30� 2� means sixth month� 2nd day of 1970.� � Appreciate your input.....

RusTy/SE · « **Reply #1 on:** April 26, 2005 - 09:13:50 PM »

Lemme try and pick these as i know them...

Of course the block casting date is 6 11 69

Stamping on the block: E (1969) 383 (383) 6 (month = June) 30 (day = 30) 2 (number engine built that day)

HP (High Performance)

According to the pad on top of the block, it's the second engine built on June 30, 1969 and is a High Performance 383

"How to Rebuild Big Block Mopar Engines" by Don Taylor lists the casting number for '59-'71 383s as 2568130 so 2468130 is close enough for me. The 11 after it i would guess indicates the 11th block cast. I believe that on what day it was cast is contained in the 9G or 9C304743.

Hope this helps a bit :thumbs:

Chryco Psycho · « **Reply #2 on:** April 26, 2005 - 11:06:59 PM »

that block seems weird , if it wa cast in June [6]on the 11th day but stamped E it was installed in a 69 car & the high # confirms this so the block was cast & used in approx 6 weeks or less which is much faster than normal
the HP is a Magnum engine but it was never in you Chall originaly

4spdChally · « **Reply #3 on:** April 29, 2005 - 02:17:19 PM »

I have a 440 HP block in my '69 Charger R/T that was cast in early August 1969 and has 1971 VIN numbers and G code stamping.

Author Topic: Question about my casting date on motor for 70 Challenger (Read 1646 times)

gomangoRT/SE

Question about my casting date on motor for 70 Challenger

RusTy/SE

Re: Question about my casting date on motor for 70 Challenger

Chryco Psycho

Re: Question about my casting date on motor for 70 Challenger

4spdChally

Re: Question about my casting date on motor for 70 Challenger