[BlazinC5]

If your not concerned with having the same block in your Blazer, Talk to an engine shop and see if you can have them build one up for ya, Some bigger shops even have rebuilt 350's just sitting on a shelf waiting for people to swap out. Just pick it up whenever it's ready and swap it in a day or so then return the core to them and get the core charge back. I and some friends have done that in the past.