3969854 block question

[Mr70]

It looks like there was a 1 ground down after the 7,indicating a 1971 Casting date on this #854 block.
You said it has the enlarged opening for the external Oil cooler,but I would like to know if it really does
indeed have 4 bolt mains by removing the oil pan.

My .02 opinion
The CON VIN pad stamping doesn't look bad,but is questionable as well.It's not upside down either.
Someone possibly ground of the 1,possibly enlarged the External Oil cooler opening,and restamped
the pad to reflect the 1967 Chevelle-Elco L-78 vehicle it went into,made at the Kansas City Plant.
I feel it's a 1971 cast #854 block with two bolt mains originally.
I've yet to see one cast after 1970 that did.

[DSYenko]

Had a couple miniutes to go look at some other late 60's big blocks i have including the 69 L78 Chevelle i have in storage and this is what i found.The 3's were rounded on top,the 7's back was bent,the 4's were closed and the 1's didnt have a foot just like the the stamping on the block in discussion.
It looks right to me!I didnt buy this engine because i needed it,i bought for what it is and hated to see it get torn up in a race car.

[DSYenko]

Had a few miniutes tonight to pull the pan down and it DOES have a 4 bolt main and steel crank. Like i said i have no use for it so i listed it on ebay with all the numbers cast into it or stamped on the block with pictures,plus the fact that someone had thought that possibley something was ground off and retextured.This is a process that i would be interested in seeing ( the retexturing part). This engine may be one for the books guys. Thanks