I am looking for a used replacement engine for my 96 s10 blazer, the used auto parts yard is telling me my vin number shows the truck is a '93. The door panel shows it was manufactured in 5-96 with the same vin #. How can I confirm the model year with the vin #1GNCT18W9TK214648. What model years 4.3 liter Vortec engine will fit my truck?