Thread: 4.3 motor

will my 2000 blazer intrerchange with my 2002 4.3 chev motor? if so what all has to be changed

check the 8th digit of the vin if the same you should not have to change much of any thing( with both motors on the ground study one side at a time noting all sensor and over all shape of everything

like above mentioned, 8th digit of vin. the X vins have some minor differences than the w vin. you will likely need the new computer with the new motor if the vins dont match, also, remeber the new motor vin when trying to replace parts on the engine later...

more info:
HELP! 4.3l vin (x) swap with vin (w) - S-10 Forum

this is all assuming you are going from 4.3L to a 4.3L.. Also, i take it you want the 02 motor in the 00 blazer.
if its an 00 motor in an 02, check local emission laws. most states, its illegal tp put an older motor in a vehicle, and if your state has emissions checks, it may come back to haunt you for getting it registered again.