If you look in the engine compartment there should be a placard, that will list the engine size. You could also look in the owners manual of the vehicle if you still have it. The only other way is get it from the VIN number. However i don't know which number in the VIN indicates which engine you have. Also for your info the 302 is the 5.0L and the 351 is the 5.8L
More than likely it is a C-6.
my trany keeps shifting when im driveing shifts up and down
The 5.0 L ( 302 cubic inch ) V8 engine has 1 timing chain
Check your VIN # , if the 8th "character" is an "E" it is the 4.0 L SOHC V6 engine , and if the 8th "character" is a "P" it is the 5.0 L (302) V8 (Helpfull)
220 horsepower for the high output 302 in a 1988 Ford Mustang
the firing order 18436572 on the 1988 f150 302
Sounds to me that the starter motor is in electrical short that is discharging the battery. I would take the starter motor to the electrical shop to be tested (or the car and ask them to check the starter).
Yes it does.
220 horsepower
Yes
From the factory ( 220 horsepower ) for the High Output 5.0 liter / 302 cubic inch V8 in a 1988 Ford Mustang GT
The Bold and the Beautiful - 1987 1-302 was released on: USA: 1988