You would have to change engine mounts and bypass the EGR/computer/OBD II systems. The computer readings from the older engine to the computer would not match up because the engines are different, causing the engine not to run the way it should. You would also have to replace the transmission because the newer transmissions operate off the computer as well. I would suggest the 350 or 400.
You can find a fuel line diagram for a 1988 Chevy Cheyenne in the vehicle's owner's manual. You can also find it at various auto stores.
If a 1988 Chevy Cheyenne dies when it is put into gear, check the fuel pump. If the fuel pump is not getting adequate fuel, it will cause the car to die.
worth keeping it
Plugged radiator Water pump Bad thermostat
How do you replace the alternator on a 1988 Pontiac Fiero
The drivers side is the odd side, #1 is in front.
physically it will fit but the wire harness and computer are not compatible.
I have the same truck and it's 26 gal.
You will often find a diagram of the fuse box for the 1988 Chevy Cheyenne in inside cover for the fuse box. This fuse box is located on the driver's side of the vehicle under the dash. The cigarette lighter fuse is generally marked as ACC.
how do i replace a throttle cable on a 1988 ford ranger pickup
Check your fuses!
Look on the exhaust pipe ahead of the catalytic convertor for a spark plug sized sensor screwed into the pipe. On a 1988 Cheyenne it is located on the left side of the engine on the exhaust manifold.