WHAT DOES R33 RB26DETT ENGINE FOR SALE MEAN?

I discovered the crankshaft could be the Overall economy crankshaft and is not going to work for my Make. The block as expected is the same as the opposite k20 blocks with the primary difference getting the oil squirters are usually not drilled as there are no oil squirters.I was on a similar predicament and kinda unhappy that I really have to use