400 block

[plefe]

You know guys, I keep asking around, but not getting much help. I have the chance to purchase an early 400 block with the "230" casting number and a date code of 1-9-71. It has got to be one of the first runs of this block out there. I know the April 71 - Oct 71 are considered the cold industrial block, but what about this block? Many pictures were sent to me, and looks to have thick mains and has been cleaned and checked for cracks. Bored .040 over, the block was intended for a serious big block build but the guy who owns it says he decided to go in a different direction. But can any of you give me some better info on this early 400 block?

 

[mattsmopars]

Here is a link to a page on 440 source that has some block info that might help you. http://www.440source.com/blockinfo.htm
Is there any cahnce the 1 might be a poorly cast 7 for the month? Just a thought. Hope that site helps you some.
Matt

 

[plefe]

Here is a link to a page on 440 source that has some block info that might help you. http://www.440source.com/blockinfo.htm
Is there any cahnce the 1 might be a poorly cast 7 for the month? Just a thought. Hope that site helps you some.
Matt

Thanks Matt, have spent some time going over the info for some time and thought about the 7 idea. Let's see if the pictures gain some interest from others.

 

[Dorian]

There is nothing wrong with any 400 block for a serious build. Any will do.

 

[crackedback]

Looks like 7/9/71 which if you look at the main web thickness, outlined at 440source, is one of the better ones.