In a 1988 Chevy pickup the ECM is located behind the glovebox.
YES, They are the same engines. That would be a direct bolt in.
disconnect the battery for a few minutes
How do you set timing on 1988-1995 Chevy Tahoe moters 5.7l?
Yes. The exhaust is different, and you'll need a bigger radiator.
It is behind the distributor, and screewed into the top of the engine block
your OWNERS MANUAL will tell you' if you can read, that 5W30 is the required viscosity for the engine
It is right behind the Distributor and screewed into the top of the engine block.
Which one? There are several.
NO. it does not.