[oldtimercarnut]

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

[SSedan64]

A little Info here>> http://www.mortec.com/location.htm no definate date tho'.

[oldtimercarnut]

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

[eloc431962]

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

[cobalt327]

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.

[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.

[cobalt327]

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...