Skip to main content
Topic: 1988 MERCURY COUGERLS 5.0 eFI (Read 716 times) previous topic - next topic

1988 MERCURY COUGERLS 5.0 eFI

my name is lucas, im 18 and im fairly new to the car world as id call it, i picked up an 88 cougar ls, with minor body damage, it has the non high output 5.0 currently, but im planning on dropping in a high output 302 out a thunderbird. i am seeking any information relating this vehicle, i have many developing plans for the future of this car, i want to make it fast, but at the same time look good and peform to the best of its capabilities, and knowledge is the key to unlocking its true potential.

1988 MERCURY COUGERLS 5.0 eFI

Reply #1
You need to definately go to coolcats.net.  Eric has a awesome site with tons of priceless info on modifiying, restoring, and caring for these cars.  Read up!
'88 'bird, 10.9:1 306 w/TFS top end, forged rods/pistons, T-5 swap & bunch of other stuff, 1-family owned, had it since ‘98, 5.0tbrd88 on Instagram and YouTube

1988 MERCURY COUGERLS 5.0 eFI

Reply #2
welcome to the board

start by downloading your first evtm,, this unto itself is priceless.  see below and pick your year.
87 & 88 are almost identical