A streetrod builder called DV

[DV447]

AN unknown Motor ?;

All motors are in Pentwater! I now have 4 of Colvins books, ALMOST all motors are identified.... but here is one for you,

Small block Chevy., Aluminum factory intake with the Canton, Oh "Snowflake" casting in place as well as "GM".

Casting number is placed as it should be: A GM is cast in a raised sq. prior to the casting number. Colvin does NOT list this casting number in either the "Chevrolet by the numbers,", NOR in his Corvette by the numbers books.

The production date is J306 - 10/30/'66 (?)

Anybody have any ideas? I'm stumped.
DV

OOps!,forgot to list the casting numbers!: Top of the block- right of distributor 14093627 (?)
CASTING NUMBER: 141001074

Also, for what it means-Left side of the block, left side of the casting #is a large 'GM' cast into a raised square then it has 5.0L8 ????
These numbers and locations have been checked and rechecked!