To add to what Charlie mentions, the fuel pump counterweight was eliminated in mid-1956.  Most parts manuals still used that older picture though when referencing the sequence or order the various cam retention parts were installed.

Lorena, Texas (South of Waco)

thanks for the response, ill just keep going on without it then

The counterweight was not used on later Y blocks.  You should have a spacer in in the place of the counterweight if it was not equipped with the counterweight.



Lawrenceville, GA

my 292 engine is coming along nicely, I purchased rebuild book by Charles morris and am following step by step instructions, the block was bored .40 over and crank grind was .20, when I took engine apart for the rebuild I put all parts in bagies and labeled them, I noticed the instructions have a counterweight that needs installed but I don't have one, the engine was rebuilt before, is it possible they left it out, is this not possible and I misplaced it somehow, any help is greatly appreciated