No, no, no. I'm reading 4 door blazer so I'm assuming a 4.3. You can use only a 93-95 "vortec" 4.3. If you say vortec some people will think you mean the 96+ engines. In 93-95 the other option was a tbi 4.3, which has a very different intake and is easy to identify. You need to make sure the engine your getting has provisions for a crank sensor. The 95 has one but I'm not totally sure the older ones. You limited to other s10's or blazers, or their gmc counterparts.
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