my latest acquisition

[old Rusty C10]

so I was looking for a beater plow bomb for my yard as my K10 peeved me for the last time and I scrapped it and I found this 1988 s10 4wd complete with a plow set up on it for cheap. it ran ( although crappy) and went into gear and of course the minute I rolled it off the trailer it wouldn't start. I smell plenty of gas although im told junkyard gas was put in so it may be kinda beat gas. My question is as follows it has the 4.3 motor. If I had to worst case scenario change the motor my 8th digit on the VIN is Z.. can the W and or X vin motors be converted to a Z style motor by swapping intakes distributors etc?