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Old 01-18-2010, 07:15 AM
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Early Big Block Date Code

Hi Guys, can anyone tell me when the date code was changed from the passenger side of the 427 big block chevy to the bell housing flange ? Thanks

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Old 01-18-2010, 12:28 PM
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A little Info here>> http://www.mortec.com/location.htm no definate date tho'.
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Old 01-18-2010, 02:06 PM
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Thanks for the link I have checked it already and there is no real time of change. From reading the link I would say somewhere around 1968. I have seen 1969 396 code on bell housing, but not sure about 427s. Thanks
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Old 01-18-2010, 02:36 PM
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Everything i have found points to the change around 1968 also, But not 100% sure though, Gonna have to dig alittle deeper i think.



Cole
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Old 01-18-2010, 04:00 PM
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The 427 date code could be found on the side of the block at least until K -8-8. Nov. 8 1968, post #13.

AFAIK, the 454 had it up top, maybe the switch was done at or just before the 454 came on line. Just a guess.
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Old 01-18-2010, 06:01 PM
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I see that you have found from my other post that it is a K -8-8. So Being Nov. 1968 I would say all of 1968 were marked there. The first 1970 454 was on top. So all I have to find out is where 1969 was. So if anyone has a 1969 427 let me know. This is a great ! Group of guys on this link, always a lot of help. Thanks.
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Old 01-18-2010, 06:14 PM
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Quote:
Originally Posted by oldtimercarnut
I see that you have found from my other post that it is a K -8-8. So Being Nov. 1968 I would say all of 1968 were marked there. The first 1970 454 was on top. So all I have to find out is where 1969 was. So if anyone has a 1969 427 let me know. This is a great ! Group of guys on this link, always a lot of help. Thanks.
By bad- I didn't even notice that the thread was also yours.

I actually owned a 100% all original '69 Impala SS 427- but never looked at the date code!

Wish I had it back, but that's another story. In '73-'74 you couldn't GIVE them away...
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