The engine that is currently in the truck needs the head redone the vavle seals and guides are shot, along with the rings. The replacement engine is in good shape, the guy that it belongs to overhauled it and then wrecked his truck. I know that the 83 is the "small" 4 cylinder so is it a 2.0-2.1-2.2 or what? I am pretty sure the one in the 86 is a 2.3. Will the FI stuff still fit the smaller engine. I assume the diplacement differenece is in the bore with the block being the same? Is this swap going to be a direct bolt in? I would think that is should only take about 8 hours or less to do. Thanks Jake