Originally Posted By: panic
W/r/t "The block appears to be a '51 truck block (JBM) and the head is the 848"

1951 block has 15 head bolts
848 head has 18 head bolts


That would be a problem - but it seems that he has since moved on to verifying actual casting numbers "Alan, Engine block#3835911 is on a Pickup from 1954-55 and began in 1953 in the Corvette and passenger car with a Power Glide transmission." so it looks like block and head are compatible.