So long story short, my buddy has a 94 blazer he has 2 bad cylinders. Im in the process of putting a rebuilt motor in my blazer and still have the old block sitting on an engine stand. He asked me if i could give him my block and switch the heads (he replaced them 2 months ago) and i could send his block with my heads in for my core. Plus he'd give me $100 bucks. Could it work? Is it a good idea or bad idea? Idk, he's in a serious bind and i wanna help him out but dont wanna get screwed with getting my money back on the core.