68 Mustang Engine Swap pulley problems

[kirkdickinson]

Where is the block casting number? I thought it was under the intake manifold and I didn't look for it when we changed from the 2bbl to the 4bbl manifold.

I know there wasn't a 351W in 1968, the engine that I was supposed to get came out of a mid 80's Ford truck.

So you think I should switch the balancer? Isn't that balanced with the crank. If I mix and match balancers, won't that make my engine out of balance?

Thanks,

Kirk