geterdun
+1y
I have dropped a couple of 4.3 GM truck (never van, a/C and alternator too high for hood to close) engines into mazda 2600's. Only change to truck, rearrange emergency cable route under driveshaft. It really is a drop in fit, not to say it can be done as simply as changing a chevy II from four cylinder to big block V8! I went with H.E.I. distributor and carburetor. Twice the torque/180 hpr stock. And no computer!
There are a lot of details to do, so is life!
Make driveshaft, exhaust, p/s hoses, a/c hoses, radiator hoses, must have mechanical speedometer tailshaft housing on transmission, no fan clutch (makes engine too long). Use original radiator, the metal one (lower hose will have to be pieced, I forget ends but used pipe under engine crankshaft pulley).