Hemi 426 ID

[rick]

Ok I boiled it down to a 68 block that was never put in a car because the vin pad was stamped wt water tested.so it has a 64 race hemi head on one side and a street Hemi from 68 same valve size. But on the bottom of the block by the starter where the tranny bolts on their is a stamped number of 4-2-69.   2.    Is this the date it was put together? What do u guys think and factory hemi cranks have no # on the counter weights this does . What is it after market crank?

[John_Kunkel]

When the bottom pan rail is stamped, it's usually a full serial number (like the MN 426 xxxxxxxx below)accompanied by the machined date. See the chart below. Without a full serial number it's likely a parts room replacement block.

The stamped number on the crank could be anything...perhaps it was balanced at one time. What are the numbers?