[bhemingson]

I have a 1972 GMC 2500 Sierra Grande. The serial number on the front of the block is CE464b84. On my SPID it says Model # CE25934

I think the "b" is a sloppy 6. My understanding is this would be a 1974 service block. Am I correct. The other thing is this engine is painted black was that normal or would that have been done by the owner?