NO. They are different. What you need is called a high rail cylinder head. It must be newer then a 1987.
165432 #1 cylinder is left front
The diagram.
160 foot lbs
Either 4.3 or 2.8 (VIN R)
16.5 to 17.1 gal
0.45 inch
Inside bell housing. Transmission has to be removed to gain access to the slave cylinder/throw-out bearing.
On the wheel cylinder. Assuming you meant brake bleeder.
.035
Under the truck, behind the driver.
Sure, You will have to change everything,motor mounts,computer,wire harness, exhaust, etc...
The 1991 2.5 L 4 cylinder has a timing chain and ita bear to get in and out This motor has timing gears it doesn't have a chain or a belt.