I have a January 2, 1969 3963512 427 block. Block has not been stamped, it was an over-the-counter purchase from GM in 1970 and was installed into a dirt car. Block was mag tested, pressure tested. No cracks, sleeves. Needs to be bored. Do have crank and rods. This is possibly for sale. Serious lookers please e-mail me.
[email protected]