Bad idea to try a different sized motor on that. Everything on the truck is set up for the engine that is on it. All the wiring, the computer-everything electronic. If you went with a bigger motor, the front suspension will also have to be beefed up, as it will be heavier than designed in the front.
Honestly, best and most easiest is to swap in another 4 cylinder motor just like yours, and preferably an engine of the same year-then you won't have problems with electrical connections, with parts in a slightly different place, or any other modifications.
SOURCE: what transmission interchanges with a 98 4z`x4 Blazer
sorry but your stuck with the 4l60e if you want it to be right. as for using the bravada transmission thats fine you just have to use your transfer case. your transfer case uses a switch on the dash and an electric motor on the transfer case. the bravada uses a series of sensors on the front and rear axle that sense wheel slippage and send a signal to the electric motor on the transfer case causing it to lock in four wheel drive. when the sensors dont sense wheel slippage any more the system returns to two wheel drive. that,s why they call it smart track. just unbolt your transfer case from your transmission and bolt it to the bravada transmission and install it. p.s- dont forget to at least change the front pump converter seal. for 4 or 5 bucks it,s cheap insurance against a major leak and i dont think you want to pull that transmission out again and yes i saw that happen to many times. good luck.-G.J.M
SOURCE: What 4 cylinder motors will interchange with this
What is your goal in changing the engine? Your question is too vague to answer accurately.
SOURCE: need to replace an engine
I would say not as you have a different block that will have different mounts , wiring possible gearbox flange etc different exhaust . Talk with an engine swap shop mechanic for the problems you are likely to encounter.
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