CAN A 2001 DURATEC 2.5 BE PUT IN A 99 COUGAR WITH A 2.5 WHATS DIFFERENT

Asked by Feb 26, 2011 at 04:29 PM about the 1999 Mercury Cougar 2 Dr V6 Hatchback

Question type: Maintenance & Repair

I have a 99 cougar with a duratec 2.5 motor is bad. I have the chance to buy a brand new 2.5 complete factory motor with all injection and accessories on it . The new crate motor model is a 1G400AA the motor in the car is a 9G400AA what i am trying to find out how is this motor different besides the ecm,belt tensioner, and so on has anybody tried this swap out. The new crate motor is a 2001 I know the 99 and 2000 are the same but what makes the 01 and 02 different. They look very simular.

3 Answers

yes it can be used. No mods necessary, but it would be worthwhile to consider a 3.0 swap if you want more performance.

3 people found this helpful.
55

what is nessary to change out the 2.5 to the 3.0

If you have a manual transmission you will have to grind down the transmission input shaft. Next decide if you want to install the stock 3.0, or use the 3.0 with 2.5 heads and intake manifold. The 3.0 with 2.5 heads makes an additional 30 HP. Otherwise, all the accessories will bolt right up (assuming the engine you get doesnt already have them) Finally, get a tune for it.

2 people found this helpful.

Your Answer

Cougar

Looking for a Used Cougar in your area?

CarGurus has 144 nationwide Cougar listings and the tools to find you a great deal.

ZIP:

Mercury Cougar Experts

  • #1
    lisagayle
    Reputation
    2,240
  • #2
    Tom Demyan
    Reputation
    820
  • #3
    Jessica Cornelison
    Reputation
    610
View All

Related Models For Sale

Used Ford Mustang
270 Great Deals out of 37,082 listings starting at $2,150
Used Mercury Grand Marquis
19 Great Deals out of 1,192 listings starting at $1,200
Used Chevrolet Camaro
224 Great Deals out of 28,922 listings starting at $3,900
Used Chevrolet Corvette
101 Great Deals out of 15,518 listings starting at $3,900
Used Chevrolet Impala
397 Great Deals out of 25,595 listings starting at $799
Used Pontiac Firebird
7 Great Deals out of 674 listings starting at $3,695
Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Chevrolet Malibu
480 Great Deals out of 49,315 listings starting at $2,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.